Amana PTAC Heat Not Working? Troubleshooting Guide (5 Solutions!)

Hey there! Dealing with an Amana PTAC unit that’s not heating up and showing an error code? You’re in the right place. We’ve all been there – you turn on your Amana PTAC system, press the device, and it’s blowing cold air when you need warmth the most. Fret not, as we’ve got your back with practical solutions to tackle this common issue step by step.

Without fault, the Amana Packaged Terminal Air Conditioner (PTAC) device promises the most comfortable air in a hotel, hospital, apartment, condominium, sunroom, and even add-on room. But once the Amana PTAC device starts malfunctioning, an error code and status report are necessary.

You can troubleshoot an Amana PTAC device when it doesn’t turn on due to a failed power supply, and when it won’t blow air, cool or heat your space, or drain. What’s more, you can run diagnostic on the device and clear error codes.

So, not only will this guide walk you through the five device problems mentioned but also the self-diagnostic, which is critical to uncovering unobvious errors. We’ll also look at how to reset your PTAC device, and after that, we’ll break down all five error code issues to enable you to fix them.

Here we go!

Amana PTAC troubleshooting

In a rush? The Amana air conditioner troubleshooting guide below can help you fix the common Amana PTAC problems, including error codes and device issues. 

Quick Amana PTAC Troubleshooting Guide

 PTAC Problem Likely Cause Troubleshooting 
1.Amana PTAC Won’t Turn On Power failure, unpowered compressor, wrong thermostat setting, dead thermostat batteries, device, error code Ensure your PTAC device has power, turn on the outside compressor, set the thermostat correctly, replace dead thermostat batteries, and check for error codes.
2.Amana PTAC Won’t Blow Air Non-working fan or associated component Replace the fan or associated component if any device or error code is defective. 
3.Amana PTAC Not Getting Cold  Wrong settings, unpowered compressor, dirty filter or coils, power failure, clogged drain line, defective fan, low refrigerant, bad compressor or associated component, device. Set the PTAC device thermostat in cool mode, power on the outside compressor if it’s off, and clean the filthy filter and coils. Ensure the unit has power, unblock the drain line, and replace a broken fan. Call an expert to deal with the rest
4.Amana PTAC Won’t Heat Power failure, wrong setting mode, dirty filter, blocked duct, or unpowered compressor Ensure the PTAC has power, set the thermostat on heat mode, clean the dirty filter, unblock the air duct and turn on the compressor if it’s off
5.Amana PTAC Won’t Drain Clogged drain pipe, rusty drain pan, or faulty drain pump Unclog the drain pipe, replace a rusty drain pan or defective drain pump

 What to Do with an Amana PTAC Not Working

The first thing you should do when your Amana PTAC is not working is to try and find out why. If the reason is not apparent, run the self-diagnostic test.

Here’s how to run a self-diagnostic or self-test on an Amana PTAC:

  • Identify the up and down arrow buttons on your PTAC

  • Hold down the two buttons simultaneously 

  • While pressing down the buttons, tap Cool twice and wait for a few seconds to see if an error code pops up

  • Note down any error code that comes on the display and try to find out what it means using your Amana PTAC troubleshooting manual

  • But if only dashes appear on display, that means there is no error detected

common problems with Amana PTAC units

Typical Amana PTAC Troubleshooting Codes Worth Knowing About

Now, below is a summary of the most everyday PTAC error codes and what to do to clear them:

Error CodeMeaningTroubleshooting 
FPFreeze Protection Raise the PTAC’s temperature to above 430F
On/EOIncorrect configuration Reset the PTAC
EHEmergency Hydronic Check the compressor to ensure its working
C1/C3/C4Freezing indoor coils Reset the PTAC
Op/UpOpen window/door Close the open window  or door 
F1Non-working thermostat and thermistor Replace the thermostat and thermistor 
F2Non-working thermostat but a working thermistorReplace the thermostat only
F3Malfunctioning indoor thermistor Check the indoor thermistor
HPHeat sentinel mode Wait for the unit to cool 
LSLoad shedding Activate the LS switch 
L6Failed condenser fan Clean/un-obstruct the condenser fan 
C2Failed cooling Clean the air filter and unclog the vent
C5Hot outdoor coil Unblock the outdoor unit
C6Failing component Check the compressor and other electrical parts 
H1Excess incoming voltageReset the PTAC

How to Reset an Amana PTAC?

We’ve mentioned the reset severally in the above table, and you may be asking how you can do it. Well, here’s how to manually reset an Amana PTAC:

  • Ensure your PTAC is plugged in 

  • Gently lift the unit’s plastic cover and then power off its master switch on the control panel 

  • Wait for 5 seconds or more and hold down the cool and heat button 

  • While holding down the two buttons, power the master switch 

  • Wait for the red light to appear close to the off button to indicate a successful reset 

  • Return the plastic cover and restart the PTAC

5 Common Problems with Amana PTAC Units

Share below are the five most typical air conditioner issues that are common with PTAC units:

1. Amana PTAC Not Turning On

Several issues could prevent your PTAC unit from turning on, with the commonest one being power failure:

Amana PTAC Not Getting Power

If your PTAC does not receive any power, then it won’t turn on. Here are the things to check:

  • Unplugged unit – If the power cable is unplugged, the PTAC won’t get any power. 

  • Defective power plug or outlet – A faulty power cable or socket will also prevent the PTAC from receiving any power. 

  • Tripped breaker – Also, expect the PTAC not to turn on if the breaker has tripped off. 


Ensure you properly plug your PTAC into the wall outlet and that the outlet and the power plug are working. If not, replace them. Meanwhile, inspect the breaker box and reset the circuit breaker if it’s off. 

Other Reasons Your Amana PTAC Won’t Turn On 

If the reason your Amana PTAC won’t turn on is not failed power, then it could be one of these:

  • Unpowered compressor – Your PTAC won’t turn on if the outside compressor is off. So, check it. 

  • Wrong thermostat setting – Preferably, the PTAC’s thermostat should be on Cool Mode for the air conditioner to run. 

  • Dead thermostat batteries – If the thermostat batteries are exhausted, the thermostat will fail to turn on the compressor. 


Power on the outside compressor and set the thermostat correctly. If it has been a while since replacing the thermostat batteries, replace them. 

2. Amana PTAC Not Blowing Air

If your Amana PTAC doesn’t blow air, it will also fail to cool or heat your space. It’s most likely due to a loose or damaged fan

But if the problem is not the fan, it’s one of its associated components, such as the relay board, thermostat, thermistor, blower motor, capacitor, selector switch, or main control board. 


Check to see if the fan is loose or damaged, and replace it. But if the motor fan is okay, have an expert check the other parts to see what needs replacing. 

3. Amana PTAC Not Cooling 

Several issues can stop an Amana PTAC from blowing cold air, including a non-working fan (discussed earlier). Overall, here’s why your Amana Ac won’t cool:

  • Wrong setting – Your PTAC will blow cold air if it’s set on any mode other than cool mode or auto mode in some units.

  • Unpowered compressor – The outside compressor should be on for the PTAC to start running and cooling. If it’s not, then the AC won’t run or cool. 

  • Dirty filter or coil – Dirt clogs up the air filter and condenser coils and restricts the flow of cold air. So, your PTAC won’t cool. 

  • Power failure – If your PTAC doesn’t get any power, as shared earlier, it won’t turn on and, consequently, won’t blow cold. 

  • Clogged drain line – If the drain line is blocked, the air conditioner won’t blow the air. 

  • Defective fan – As shared earlier, one of the reasons the PTAC won’t blow air is a faulty fan. So, it could be the reason the AC won’t cool.

  • Low refrigerant – A refrigerant leakage could stop the PTAC from blowing cold. It’s, however, not easy to diagnose, and that’s why an expert’s help is necessary.

  • Bad compressor or associated component – Components like the thermistor, thermostat, run capacitor, and control board directly affect the compressor’s running. If the component fails, the compressor won’t run. And if the compressor doesn’t run, the PTAC won’t blow cold. 

Amana PTAC troubleshooting manual


Set your PTAC on Auto or Cool Mode and power on the compressor. Clean the air filter if it’s dirty and ensure the PTAC has power.

Unclog a clogged drain line and replace a defective fan. Leave the other issues (refrigerant leakage and compressor or associated component failure) to an expert. 

4. Amana PTAC Not Heating

Sometimes your PTAC may cool but fail to heat. If so, then it could be due to any of the following:

  • Power failure –  You cannot expect your Amana PTAC to heat up if it has no power. So, revisit the issues discussed earlier under ‘Amana PTAC not getting power.’ 

  • Wrong setting – While the Cool Mode is for cooling, the heat mode is for heating. So, your PTAC won’t heat if it’s set on another mode. 

  • Dirty filter – Dirt blocks airflow and restricts your PTAC from blowing cold air. Thus, it won’t cool the space. 

  • Blocked duct – A blockage within the air duct prevents cold air flow stopping your PTAC from cooling. 

  • Unpowered compressor – likewise, if the outside compressor is not turned on, it won’t run, and the PTAC will not heat. 


Ensure the PTAC has power and the thermostat is in heat mode. Clean the filter and unblock the air duct. And if the outside compressor is off, turn it on. 

5. Amana PTAC Not Draining

Lastly, if your Amana PTAC won’t drain, it’s likely to be due to the following:

  • Clogged drain pipe – Sometimes, the drain pipe clogs up with debris, stopping the water from draining. 

  • Rusty drain pan – If the drain pan is rusty, the rust may reach the drain pipe and clog it and restrict drainage. 

  • Faulty drain pump – If the drain pump doesn’t pump out water, the water won’t drain. 


Clean the drain pipe if it’s debris-clogged, and if the drain pan is rust-damaged, replace it. You can, however, clean off the rust if it’s only superficial. But if the problem is none of the two, replace the drain pump. 

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Where can I shop for Amana air conditioner parts?

If you’re looking to shop for Amana air conditioner parts, you’ve come to the right place! We offer a wide range of parts for Amana air conditioners, making it easy for you to find the ones you need to fix any issues you may be experiencing. With over 4 million parts available from over 150 major brands, including Amana, we’re confident that we have the part you’re looking for. From adhesive parts to belts, blades, capacitors, control boards, compressors, and much more, we have everything you need to get your Amana air conditioner working perfectly again. Simply browse our selection and shop with ease. Start by entering your model number to quickly find the specific parts that are compatible with your Amana air conditioner. Can’t find your model number? Don’t worry – we can help you with that too. Simply select the “Need help finding your model number?” option, and we’ll guide you through the process. Alternatively, if you’re not sure what the problem is with your Amana air conditioner, you can select the “Common Problems” option below, and we’ll assist you in diagnosing the issue. So, why wait? Shop for Amana air conditioner parts today and get your unit back up and running in no time.

What are some common causes and potential solutions for a malfunctioning air conditioner remote control?

Common Causes and Potential Solutions for a Malfunctioning Air Conditioner Remote Control

When your air conditioner remote control stops working, there are several possible causes to consider. By identifying these causes and implementing the appropriate potential solutions, you can resolve the issue and regain control over your air conditioning system. Here are some common causes and their potential solutions to help troubleshoot the problem:

1. Batteries: One of the most common causes of a malfunctioning air conditioner remote control is dead or low batteries. Check the battery compartment, and if the batteries have run out of power, replace them with fresh ones. Make sure to insert the batteries correctly, following the polarity indicated on the remote control.

2. Signal Interference: Another potential cause of remote control malfunction is signal interference. If there are obstacles between the remote control and the unit, such as furniture or walls, they may block the infrared signal. Ensure that there are no obstructions in the line of sight between the remote control and the air conditioner unit.

3. Remote Control Damage: Physical damage, such as drops or water spills, can also lead to a malfunctioning remote control. Inspect the remote control for any visible signs of damage, like cracked casing or water ingress, and if found, consider replacing the remote control.

4. Resetting the Remote Control: Sometimes, a simple reset can fix problems with the remote control. Look for a reset button on the remote control, or consult the user manual for instructions on how to perform a reset. This can help restore the remote control to its default settings and resolve any software glitches.

5. Unit Settings: It is also worth checking the settings on the air conditioner unit itself. Ensure that the unit is not on a different mode or set to a different temperature, as this could cause confusion and make the remote control appear to be malfunctioning.

If none of these potential solutions work, it may be necessary to contact a professional technician who specializes in air conditioning systems. They will be able to diagnose and address any underlying issues with the air conditioner unit or the remote control itself.

Remember, before attempting any repairs or replacements, it is essential to refer to the manufacturer’s manual or consult an expert to ensure safety and avoid further damage.

What are some common causes and potential solutions for a loud or noisy air conditioner?

A loud or noisy air conditioner can be quite bothersome, but fortunately, there are several common causes and potential solutions for this issue. Here are some possibilities to consider:

1. Dirty or Clogged Filters: When the air filters in your air conditioner become dirty or clogged, it can restrict the airflow and cause the unit to work harder, leading to increased noise. Regularly cleaning or replacing the filters can help alleviate this problem.

2. Loose or Misaligned Parts: Over time, certain components of the air conditioner may become loose or misaligned, causing vibrations and resulting in excessive noise. Checking and tightening any loose parts can often resolve this issue.

3. Unbalanced Fan Blades: If the fan blades inside the air conditioner become unbalanced, they can create a loud, clanging sound. Adjusting and balancing the blades should fix this problem.

4. Faulty Motor Bearings: Worn-out or faulty motor bearings can cause a buzzing or squealing noise. In such cases, it may be necessary to replace the motor bearings to eliminate the noise.

5. Improper Installation: Inadequate installation can lead to an array of noise issues. Ensuring that the air conditioner is correctly installed with proper insulation and vibration-dampening materials can significantly reduce the noise level.

6. Refrigerant Leaks: Refrigerant leaks not only affect the performance of the air conditioner but can also lead to a hissing or bubbling sound. Contacting a professional technician to locate and fix the leaks will help restore the unit’s efficiency and reduce noise.

7. Ductwork Issues: Damaged or improperly installed air ducts can cause rattling or whistling noises. Inspecting and repairing any ductwork problems can improve the overall functioning and noise level of the air conditioner.

8. Compressor Problems: A noisy air conditioner may also indicate issues with the compressor, such as being overworked or experiencing electrical malfunctions. Consulting a professional technician is necessary to diagnose and repair any compressor-related problems.

9. Aging Equipment: As air conditioners age, the internal components can wear out, leading to increased noise. In some cases, replacing the outdated unit with a newer, more efficient model may be the best long-term solution.

Remember that if you are unsure of how to diagnose or fix any noise-related issues with your air conditioner, it’s always recommended to seek assistance from a qualified HVAC technician to ensure proper and safe resolution.

How can I diagnose common air conditioning problems?

To diagnose common air conditioning problems, you can follow these steps:

1. Identify the Issue: Begin by observing the symptoms and behaviors of your air conditioning system. Is it not cooling properly, making strange noises, or not turning on at all? Identifying the specific problem will help in the diagnosis process.

2. Check for Power Supply: Ensure that your air conditioner is receiving power by checking the electrical connections, circuit breakers, and fuses. Sometimes, a simple power issue may be the cause of the problem.

3. Examine the Thermostat: Make sure the thermostat is set to the correct temperature and mode. Sometimes, an incorrectly set thermostat can result in the air conditioner not functioning properly.

4. Clean or Replace Air Filters: Clogged or dirty air filters can restrict airflow and reduce the cooling efficiency of your air conditioning system. Check the filters and clean or replace them as necessary.

5. Inspect Air Ducts: Examine the air ducts for any blockages or leaks that may be impeding airflow. Use a flashlight to check for any visible obstructions or damage.

6. Examine Outdoor Unit: Check the outdoor unit for any debris, such as leaves, grass, or branches, that may be obstructing the condenser coils. Clear any obstructions and ensure proper airflow to the unit.

7. Test Capacitors and Fan Motors: Faulty capacitors or fan motors can cause the air conditioner to not function correctly. Use a multimeter to test these components and replace them if necessary.

8. Call a Professional: If you have followed the above steps and are still unable to diagnose the problem, it is recommended to call a professional HVAC technician. They have the expertise and tools to identify and fix more complex air conditioning issues.

Remember, these steps are meant to diagnose common air conditioning problems. If you are unsure or uncomfortable performing any of these tasks, it is always best to seek professional help to avoid further damage or risk.

Closing Thought:

Above are the basics of Amana PTAC troubleshooting. You can use the guide to self-diagnose your air conditioner, troubleshoot error codes, and fix typical problems. 

The typical problems, as shared, include a PTAC that won’t power on, blow air, cool, heat, or drain. Once you can troubleshoot the issues, you can skip a service call and the cost that comes with it. 

Amana PTAC units have been a reliable choice for many, but like any appliance, they can encounter hiccups over time. Whether it’s a faulty thermostat or a malfunctioning heating element, we’ll dive into troubleshooting steps to get your unit up and running efficiently again. So, if you’re tired of bundling up indoors or facing chilly guests at your hotel due to a malfunctioning Amana PTAC heat function, stick around for some expert tips.

Troubleshooting Amana PTAC Heating Issues

Amana PTAC units may display error codes when the heating system malfunctions. These codes provide valuable information about the specific issue affecting the unit. For example, if you see an error code like “E1,” it could indicate a problem with the temperature sensor. By consulting the user manual or contacting Amana customer support, you can decipher these error codes to understand what’s causing your PTAC heat not working.

Understanding these error codes is crucial for effectively troubleshooting and resolving heating issues in Amana PTAC units. It allows you to pinpoint the exact nature of the problem without guesswork, saving time and effort in diagnosing and fixing the malfunction.

Resolving Amana PTAC Refrigeration Errors

The Amana PTAC unit’s refrigeration cycle is crucial for its cooling function. If the heat isn’t working, it could be due to issues within this cycle. One common problem is a malfunctioning compressor, which can lead to inadequate cooling or heating.

Refrigerant leaks are another potential issue that can disrupt the refrigeration cycle and cause the heat not working problem. When there’s a leak, the system may struggle to maintain the desired temperature, resulting in insufficient heating or cooling.

Furthermore, clogged air filters can obstruct proper airflow through the system, affecting the refrigeration cycle and causing inefficiencies in both heating and cooling functions. Regularly cleaning or replacing air filters is essential for maintaining optimal performance.

Addressing Airflow Problems

Filter Maintenance

Proper filter maintenance is crucial for ensuring the efficient operation of your Amana PTAC unit. Over time, the filter can become clogged with dust, dirt, and other debris, restricting airflow and causing the heat to not work as effectively. To address this issue, it’s important to regularly clean or replace the filters according to the manufacturer’s recommendations.

Regularly inspecting and cleaning or replacing the air filters in your Amana PTAC unit can help prevent airflow problems that may lead to heating issues. For instance, if you notice a significant accumulation of dust on the filter or if light cannot pass through it easily, it’s a clear indication that it needs attention.

When performing filter maintenance, always refer to the user manual for specific instructions regarding filter removal and replacement. Typically, air filters are located behind a front panel on the unit and can be accessed without professional assistance. By keeping up with regular filter maintenance, you can ensure proper airflow throughout your Amana PTAC system.

Vent Blockage

Another common cause of heat not working in an Amana PTAC unit is vent blockage. The vents in your system play a critical role in distributing warm air throughout the room. If these vents are obstructed by furniture, curtains, or any other items, it can impede proper airflow and result in inadequate heating performance.

To address vent blockage issues effectively:

  • Regularly check all vents within your space to ensure they are free from obstruction.

  • Make sure there are no large objects blocking the flow of air from both supply and return vents.

  • Keep furniture arranged so that it doesn’t cover or restrict airflow from any vents.

Fixing Amana PTAC Heating Failures

Short cycling in an Amana PTAC unit can lead to heating failures. This occurs when the unit turns on and off frequently, not allowing enough time for the system to heat the room properly. One common reason for short cycling is a clogged air filter. When the filter is dirty, it restricts airflow, causing the system to overheat and shut down.

Moreover, a malfunctioning thermostat can also cause short cycling. If the thermostat is faulty, it may incorrectly signal the PTAC unit to turn on and off rapidly. Low refrigerant levels or a defective compressor can contribute to short cycling issues in an Amana PTAC system.

To address short cycling problems with an Amana PTAC, start by checking and replacing the air filter regularly. Ensure that there are no obstructions blocking airflow around the unit. If these steps don’t resolve the issue, consulting a professional technician may be necessary to diagnose and repair any internal component malfunctions.

The heat sentinel mode in an Amana PTAC serves as a safety feature designed to protect against overheating by shutting down if it detects abnormally high temperatures within its components or surroundings. This mode prevents damage caused by excessive heat buildup within the unit.

When activated due to extreme temperatures or other internal issues, such as blocked vents or restricted airflow, this safety feature interrupts normal operation until conditions return to safe levels.

To prevent triggering heat sentinel mode in your Amana PTAC, ensure proper ventilation around both indoor and outdoor components of your unit. Check for any obstructions near intake and exhaust areas that could impede airflow.

Regular maintenance such as cleaning coils and ensuring adequate clearance around vents can help prevent overheating issues that would activate this protective feature.

Power and Electrical Concerns

Voltage Fluctuations

Voltage fluctuations can cause the Amana PTAC heat to stop working. When the voltage supplied to the unit is not consistent, it can lead to malfunctions. For instance, if there are sudden drops or spikes in voltage, it can disrupt the operation of the PTAC unit.

These fluctuations may be caused by issues with the power supply from your utility company or within your building’s electrical system. If there are problems with wiring or circuits, this could result in irregular voltage reaching your Amana PTAC unit.

To address this issue, consider installing a voltage regulator for your Amana PTAC unit. This device helps stabilize and regulate the voltage supplied to the unit, ensuring that it operates within safe parameters even when there are fluctuations in power supply.

Another solution is to have an electrician inspect your building’s electrical system for any underlying issues causing these fluctuations. By identifying and resolving these problems, you can ensure a steady and reliable power supply to your Amana PTAC unit.

Load Shedding Mode

A common feature of Amana PTAC units is load shedding mode, which allows them to manage their energy consumption during peak demand periods. While this feature helps prevent overloading of electrical circuits during high usage times, it can also impact heating performance.

During load shedding mode, the Amana PTAC may reduce its heating capacity temporarily to minimize its electricity usage. As a result, you might experience reduced heat output during these periods.

To mitigate this issue, you can check if load shedding mode is activated on your Amana PTAC unit and adjust its settings if possible. Some models allow users to customize load shedding preferences based on their specific needs.

Coordinating with building management or facility maintenance personnel can help ensure that load shedding schedules align with occupants’ comfort requirements while maintaining efficient energy use.

Cooling Problems in Amana PTAC Units

If your Amana PTAC unit is experiencing cooling problems, one possible issue could be related to the thermostat calibration. The thermostat controls the temperature settings and ensures that the unit operates at the desired level.

Sometimes, the thermostat may become inaccurate or misaligned, leading to incorrect temperature readings and improper cooling operation. As a result, the unit may not cool effectively or may run continuously without reaching the set temperature.

To address this issue, you can start by checking and calibrating the thermostat. This involves adjusting its settings to ensure it accurately reflects room temperatures and triggers the cooling cycle appropriately.

Calibrating your Amana PTAC’s thermostat requires accessing its control panel and making precise adjustments based on actual room conditions. By recalibrating the thermostat, you can enhance its accuracy in detecting temperature changes and activating the cooling function when needed.

Another factor contributing to cooling problems in Amana PTAC units is related to an analysis of their cooling cycles. The cooling cycle refers to how efficiently these units operate in removing heat from indoor spaces.

When analyzing a PTAC’s cooling cycle, it’s essential to consider factors such as airflow obstruction, refrigerant levels, compressor efficiency, and overall system performance. Any issues with these elements can lead to inadequate cooling output or inconsistent temperature regulation within a room.

For example:

  • If there are obstructions blocking airflow around your Amana PTAC unit (e.g., furniture placed too close), it can hinder proper heat exchange.

  • Low refrigerant levels due to leaks or system malfunctions can impair the unit’s ability to cool effectively.

  • Inefficient compressor operation might result in insufficient heat removal from indoor spaces despite running for extended periods.

Wireless Remote Thermostat Issues

Battery Replacement

If your Amana PTAC heat is not working, one of the first things to check is the wireless remote thermostat‘s batteries. The remote control requires power to send signals to the unit, and if the batteries are low or dead, it may not effectively communicate with the PTAC system.

Replacing the batteries in the wireless remote thermostat is a simple yet crucial step in troubleshooting heating issues. Start by removing the back cover of the remote and carefully replacing old batteries with fresh ones. Make sure to insert them correctly, following the polarity indicators inside.

It’s essential to use high-quality alkaline or lithium batteries for optimal performance. Once you’ve replaced the batteries, test whether you can now successfully adjust and control your Amana PTAC unit using the wireless remote thermostat.

Signal Interruption

Another common issue that can lead to heat problems in Amana PTAC units is signal interruption between the wireless remote thermostat and the main system. This interference could be caused by various factors such as electronic devices emitting similar frequencies, physical obstructions, or even distance from the unit.

To address signal interruption problems, start by ensuring that there are no electronic devices nearby that could be causing interference with your wireless communication. Try moving closer to your Amana PTAC unit when adjusting settings on your wireless remote thermostat.

If proximity doesn’t resolve signal issues, consider repositioning any potential obstacles between your wireless remote and Amana PTAC unit. Large furniture or metal objects can sometimes disrupt signals; therefore, rearranging these items may help improve communication reliability.

In some cases where distance seems to be a factor contributing to signal interruption problems, you might want to consult with a professional about options for enhancing wireless connectivity between your remote thermostat and Amana PTAC unit.

Conducting Amana PTAC Self-Diagnostics

To troubleshoot Amana PTAC units with heat not working, you can perform a self-test to identify any underlying issues. Start by turning off the unit and then pressing the ‘Heat’ and ‘High Fan’ buttons simultaneously for three seconds. This action initiates the diagnostic test mode, allowing you to gather crucial information about the system’s functionality.

Once in diagnostic mode, observe the LED display on the unit’s control board. The display will show a series of codes that correspond to different components and functions of the PTAC system. For instance, if there is an issue with the heating element or temperature sensor, specific error codes will be displayed during this self-test procedure.

It’s important to note down these error codes as they will provide valuable insights into what might be causing the heat malfunction in your Amana PTAC unit.

Understanding Common Amana PTAC Error Codes

A common issue with Amana PTAC units is the activation of the freeze protection mode, which can cause the heat to stop working. This mode activates when the temperature drops too low, typically around 40 degrees Fahrenheit. When this happens, the unit switches to electric heat and shuts off the compressor to prevent damage from freezing temperatures.

If your Amana PTAC unit’s heat is not working, it could be due to freeze protection mode being activated. To resolve this, first check if the ambient temperature in your room has dropped significantly. If so, ensure that you have set your thermostat to a higher temperature than the current room temperature.

Inspect for any drafts or open windows that might be causing a rapid drop in temperature within the room. Once you’ve addressed these factors and raised the room’s ambient temperature above 40 degrees Fahrenheit (4.4 degrees Celsius), reset your Amana PTAC unit by turning it off and then back on again.

Advanced Features and Modes of Amana PTAC Units

Emergency Hydronic Mode

A common feature in Amana PTAC units is the Emergency Hydronic Mode. This mode activates when the unit detects a problem with the electric heating system, ensuring that there’s an alternative way to provide heat. In this mode, the unit switches to using hot water from a boiler to generate warmth instead of relying on electricity.

The Emergency Hydronic Mode offers a reliable backup solution for maintaining comfortable temperatures in spaces where these units are installed. For example, if there’s an issue with the electrical components responsible for heating, this mode ensures that occupants can still enjoy warmth by utilizing hot water as an alternative heat source.

This feature adds an extra layer of reliability to Amana PTAC units, making them suitable for various environments where consistent temperature control is crucial. Whether it’s a hotel room or residential space, having a backup heating method like the Emergency Hydronic Mode can provide peace of mind and uninterrupted comfort during unexpected technical issues.

Un-Rented Unit Mode

Another noteworthy feature found in Amana PTAC units is the Un-Rented Unit Mode. When rooms are unoccupied for extended periods, such as in hotels or rental properties, this mode allows the unit to operate at specific settings designed to conserve energy while preventing issues related to stagnant air and moisture buildup.

By activating Un-Rented Unit Mode when guests check out or during off-peak seasons, property owners can ensure that their Amana PTAC units continue operating efficiently without unnecessary strain on components. For instance, this mode may adjust temperature setpoints and activate fan cycles intermittently to maintain air quality without consuming excessive energy.

Un-Rented Unit Mode not only contributes to cost savings by reducing utility expenses but also helps prolong the lifespan of Amana PTAC units by minimizing wear and tear during periods of low occupancy.


You’ve now gained valuable insights into troubleshooting and fixing various issues with your Amana PTAC unit. By addressing heating failures, refrigeration errors, airflow problems, power and electrical concerns, cooling issues, wireless remote thermostat glitches, self-diagnostics, error codes, and advanced features, you’re better equipped to ensure optimal performance. Remember to refer back to this guide whenever needed and don’t hesitate to seek professional assistance if the issues persist.

Take charge of maintaining your Amana PTAC unit to keep it running smoothly and efficiently. Regular maintenance and prompt resolution of any issues will not only extend the lifespan of your unit but also save you from costly repairs in the long run. Stay proactive in addressing any signs of malfunction to enjoy consistent comfort and performance from your Amana PTAC unit.

Frequently Asked Questions

Why is my Amana PTAC unit not heating up?

If your Amana PTAC unit is not heating up, it could be due to issues with the thermostat, electrical connections, or airflow blockages. Check the thermostat settings, ensure proper power supply, and clear any obstructions in the airflow to troubleshoot this issue.

How can I fix a refrigeration error in my Amana PTAC unit with manual reset and diagnostic mode?

To resolve refrigeration errors in your Amana PTAC unit, start by checking for any visible leaks or blockages in the refrigerant lines. Ensure that the filters are clean and free from debris. If these steps don’t resolve the issue, consider contacting a professional technician for further assistance.

What should I do if there are airflow problems with my Amana PTAC unit?

Airflow problems in an Amana PTAC unit can often be resolved by cleaning or replacing the air filters and ensuring that there are no obstructions around the vents. Proper maintenance of the unit’s components will help maintain optimal airflow and overall performance.

My Amana PTAC heat is failing intermittently. How can I address this issue?

Intermittent heating failures in an Amana PTAC unit may stem from faulty electrical connections or sensor malfunctions. Inspect all electrical components for signs of damage and consider recalibrating or replacing sensors as needed to restore consistent heating functionality.

What are some common wireless remote thermostat issues with Amana PTAC units, including manual reset, device, error code, and master?

Common wireless remote thermostat issues with Amana PTAC units include connectivity problems, unresponsive controls, and inaccurate temperature readings. Troubleshoot these issues by checking battery levels, repositioning the remote for better signal reception, and resetting both the remote and main control panel.

4 thoughts on “Amana PTAC Heat Not Working? Troubleshooting Guide (5 Solutions!)”

  1. This procedure doesn’t work for the unit in the photo, it doesn’t have a cool button.
    The cool selection is made by the mode switch.

    Identify the up and down arrow buttons on your PTAC
    Hold down the two buttons simultaneously
    While pressing down the buttons, tap Cool twice and wait for a few seconds to see if an error code pops up.

    I have a PBH113G35CC how do I perform a diagnostic on my unit?

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