Amana Air Conditioner Not Cooling (7 Issues Fixed!)

It’s one of those sweltering nights, and you can’t help but ask, ‘why is my Amana air conditioner not cooling?’ You are almost sure it’s a malfunction and intend to call Amana or the local HVAC technician, and then you remember that you should try troubleshooting it but are not sure what to check.

Your Amana air conditioner is not cooling or blowing cold air due to failed power supply, undersized capacity, incorrect temperature mode, poor airflow, air or refrigerant leakage, or component failure.

And regarding the last part, some components that could fail and cause your air conditioner not to blow cold air include the thermostat, compressor, thermistor, fan, run capacitor, and control board.

I’ll walk you through all seven issues, indicating how each stops your air conditioner from cooling and what to do to troubleshoot them. After that, we’ll highlight the reasons behind a non-cooling Amana wall, window, and central air conditioner.

Let’s jump into it!

Amana air conditioner not cooling

In a rush? See below a quick troubleshooting guide for an Amana air conditioner that won’t blow cold.

Quick Troubleshooting Guide for an Amana Air Conditioner Not Blowing Cold Air

Likely CauseWhat to CheckTroubleshooting
1.Failed Power SupplyDisconnected unit, tripped breaker, blow-up fuse, or power lossEnsure the AC is well plugged into the electric outlet, reset the breaker (if it’s tripped off), and replace the fuse (if it lacks continuity). And if there’s a power loss, wait for its restoration.
2.Undersized CapacitySmaller BTU ratingReplace the AC with an option with a higher BTU rating
3.Wrong ModeFan or Dry modeSet the thermostat on COOL or Auto mode
4.Poor AirflowClogged air filter, condenser unit, or air ductClean the air filter, condenser unit, or air duct if they are dirty. If you can’t clean the air filter, change it.
5.Air LeakageLeaky windows, doors, or air ductClose the windows and doors if they are open, and seal the duct if it’s leaky.
6.Refrigerant LeakageFrozen coilsCall Amana or the local HVAC pro
7.Component FailureThermostat, compressor, thermistor, fan, run capacitor, or control boardLet an expert check the components for failure. If any is faulty, replace it. 

7 Reasons for the Amana Air Conditioner Not Cooling

Generally, your Amana air conditioner is not blowing cold air because of one of these seven issues:

1. Failed Power Supply

You cannot expect your Amana AC to cool if it doesn’t power on (it won’t turn on). So, it makes sense to first check for any possible cause of power disruption or supply and, in particular, the following:

  • Unplugged unit – The air conditioner won’t power on if it’s unplugged. So, you’ve to check the power cable to ensure it’s plugged into the power outlet.
  • Tripped breaker – The breaker cuts off the AC’s power supply when it trips, which is likely to be the case during a power surge. So, inspect the breaker box to see if the circuit breaker is OFF.
  • Blown-up fuse – The fuse also disrupts the power supply during a power surge, but unlike the power breaker, it blows up to protect the AC. You can tell if the fuse is blown-up if it lacks continuity on a multimeter.
  • Power loss – Your air conditioner may also be off because of an outage. So, check if there’s an electricity supply.


Plug the AC firmly into the power outlet if it’s unplugged, and reset the breaker if it’s indicating ‘OFF.’ If the fuse lacks continuity, that proves it’s blown up, and so replace it. And if it’s a power loss, wait for its restoration.

2. Undersized Capacity

If your AC has a smaller capacity than the space it is expected to cool, it won’t cool properly. Usually, you can tell the air conditioner’s capacity from its BTU rating.


Below is an Amana AC sizing guide to match your room with the correct AC capacity.

Maximum Square FootageAC Capacity
150 sqft5,000BTU
300 sqft6,000 BTU
350 sqft7,000 BTU
400 sqft8,000 BTU
450 sqft9,000 BTU
550 sqft10,000 BTU
700 sqft14,000 BTU
1,000 sqft18,000 BTU
1,200 sqft21,000 BTU
1,400 sqft23,000 BTU
1,500 sqft24,000 BTU

If your AC’s capacity is smaller, get a new Amana air conditioner (View on Amazon) with a corresponding BTU rating. Remember, however, to increase the BTU ratings by:

  • 10% if the room is extra sunny
  • 600 BTUs for every additional adult if more than two adults frequently spend time in the room
  • 4,000 BTUs if you want to cool the kitchen

3. Wrong Temperature Mode

An Amana air conditioner features different temperature modes such as Dry, Cool, Auto, Fan, and Heat Mode, and they all play different roles.

Dry mode, also known as the Dehumidifier Mode, removes moisture from the room but doesn’t allow the AC to blow cold air. Fan Mode also doesn’t let the AC blow cold air but only enables it to circulate air.

Both modes won’t allow your AC to cool, so you should check them. The only modes that will promote cooling are Cool Mode and Auto (which enable the Ac to run depending on the conditions at the time).

Amana air conditioner not blowing cold air


Set your Amana AC on Cool or Auto Mode to blow cold air.

4. Poor Airflow

If air doesn’t flow properly because of a blockage, your Amana air conditioner won’t cool your space. In that case, watch out for these three issues:

  • Clogged air filter – The air filter collects dirt over time, which ends up clogging it and restricting airflow. Once that happens, the AC fails to blow cold air.
  • Dirty condenser unit – The condenser outside, especially the condenser coil and fan, may also collect dirt over time. And once that’s the case, the condenser cannot fully dissipate the hot air.
  • Clogged air duct – The ductwork could also clog with dirt over time and restrict the flow of the conditioned (cool) air.


Clean the air filter if it’s dirt-clogged. If you cannot clean it, change it. Also, clean the condenser unit, preferably with a condenser cleaning brush, and the air duct, to eliminate the dirt blockage.

5. Air Leakage

The room will feel hot if the cold air finds a way to escape. Meanwhile, warm air may use the empty gaps to run (in) and dilute the cold air. For that reason, check out these potential issues:

  • Leaky windows or doors – Cold air could escape through the windows and doors if they are left open for too long. Also, the windows could be leaking air around them.
  • Leaky air duct – The air duct, which carries the conditioned air, may also leak it outside. Once that’s the case, the room won’t stop getting hotter.


Close open windows or doors. If the windows leak air around them, insulate them with thick curtains. Meanwhile, seal the air duct if it’s leaking air but if you cannot do it, call Amana or an HVAC pro.

6. Refrigerant Leakage

It’s not just an air leakage that could prevent your Amana air conditioner from cooling but also a refrigerant leakage. Remember, the refrigerant absorbs hot air to make the room cool. Once it leaks, there won’t be enough refrigerant to do that.

In most cases, a refrigerant leakage is accompanied by frozen evaporator coils. So, if you notice that the evaporator coils are icy, it’s likely that the refrigerant level is pretty low.


It’s never easy to fix a refrigerant leakage. Thus, call Amana or the local pro to check it once you identify frozen evaporator coils.

7. Component Failure

Lastly, your Amana air conditioner may also fail to cool due to the failure of one of these components:

  • Thermostat – The thermostat’s job is to monitor air temperature changes and enable the AC to blow cold or warm. It may fail to do so if its batteries are dead or the thermostat itself is faulty.
  • Compressor – The compressor’s job is refrigerant compression, circulation, and cooling your space. That’s, however, not possible if the compressor is dirt-clogged or defective.
  • Thermistor – The thermistor, like the thermostat, may fail to detect air temperature changes if faulty.
  • Fan – Is your Amana air conditioner fan not working? Well, the fan is likely to fail to blow cold air if it’s dirt-obstructed, set on a low speed, or defective.
  • Run capacitor – The run capacitor stops the compressor from running when it burns, preventing the AC from blowing cold air.
  • Control board – Finally, a faulty control board paralyzes all AC operations, not just cooling. It’s the last thing to check, nevertheless.


Try changing the thermostat’s battery to see if the thermostat works. If it doesn’t, test its continuity. The lack of continuity will show that the thermostat is faulty and needs replacing.

Also, check the thermistor and the run capacitor with a multimeter. If any of the two lacks continuity, replace it. Meanwhile, have an expert inspect the compressor and control board for faults.

You may also consider the expert when suspecting a faulty thermostat, thermistor, or fan. But when it comes to the fan, try to clean it and raise its speed setting if it won’t run.

Amana wall air conditioner not cooling

Amana Wall Air Conditioner Not Cooling

If your Amana wall air conditioner won’t blow cold air, it’s likely due to any of these reasons:

  • The AC lacks power and is, therefore, unable to run
  • The unit is undersized, thus unable to cool the space correctly. So, revert to the table shared earlier to see if the Ac matches your square footage.
  • Your AC is running in the wrong mode, which does not promote cooling. If so, switch to Cool/Auto mode.
  • There’s poor air circulation due to a clogged air filter, dirty condenser unit, or blocked intake duct. In such a case, clean the affected part to improve cold air circulation.

Amana Window Air Conditioner Not Cooling

Your Amana wall air conditioner is likely to fail to cool your space due to any of these issues:

  • The unit capacity is undersized (lower than the room’s square footage). Again, revert to the earlier shared table to see if that’s the case.
  • The unit’s power supply has been disrupted, thus preventing it from running
  • Leaky doors and windows which you should shut
  • Poor airflow due to a clogged air filter or outdoor unit, especially the condenser. If any of them is dirty, clean them.
  • Wrong working mode, such as Fan or Dry mode, which you should substitute with the Auto or Cool mode
  • Refrigerant leakage, which calls for an HVAC expert’s attention

Amana Central Air Conditioner Not Cooling

The central air conditioner, which is the largest and costliest AC unit, is best handled by a pro when it malfunctions. That, however, doesn’t mean that you cannot do some troubleshooting when it won’t cool.

For example, you check the power supply to ensure the Ac has power. Also, check the mode to ensure it is either Cool mode or Auto. And if the filter or condenser unit is dirty, clean it.

Don’t forget to check its capacity/BTU to ensure it matches the space it’s expected to cool.

Closing Thought

Above are the seven most probable reasons behind an Amana air conditioner not cooling. Thus, consider them when you want to troubleshoot your non-cooling AC. That should happen before picking up the phone to call Amana or your local HVAC technician.

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