Frigidaire Professional Dishwasher Troubleshooting Guide.

A fully functional Frigidaire Professional dishwasher can clean and dry your dishes fast. But if yours has errors that keep it from performing optimally, doing a Frigidaire Professional dishwasher troubleshooting can help you fix problems and get the unit working well again.

You should troubleshoot your Frigidaire Professional dishwasher if it won’t turn on, if it won’t work despite stable power supply, if it won’t fill with water, if it won’t clean dishes, and if it won’t drain. You should also do a complete reset so that the dishwasher can start a new cycle.

In this guide, I’ll explain all the possible Frigidaire Professional dishwasher problems that you’re more than likely to run into. I’ll also share some simple do-it-yourself solutions to help you fix each problem.

My goal with this guide is simple:

I want you to learn how to fix dishwasher problems that don’t necessarily require expert opinion or professional servicing. That way, you can run a Frigidaire dishwasher diagnostic on your own, fix the errors yourself, and save a lot of money in repair service.

Frigidaire Professional Dishwasher Troubleshooting

Frigidaire Professional Dishwasher Troubleshooting: 6 Errors and Quick Fixes

If you’re in a hurry and just needs a summary of the dishwasher problems and their quick fixes, check the table below:

 ProblemProbable CauseQuick DIY Fix
1.The dishwasher won’t fill with waterThere’s no connection to the water supply  Ensure  you connect the dishwasher to a water  supply source
2.Dishwasher’s thermal fuse blewThe thermal fuse blew because of a possible overheatingReplace the thermal fuse with a new one
3.The air gap is dirtyClogs by small objects and food particlesYou should clean the air gap to fix the problem
4.The door latch not functioningThe door latch for Frigidaire dishwasher is faultyReplace the door latch so the door closes and latches properly and get the machine to run efficiently. 
5.Problem with the main control boardBad power connection, blow power fuseHave the main control board replaced for optimal operation
6.Dishwasher not draining wastewaterBlocked drain hose or dirty dishwasher filterClear blockages from the drain hose and clean the water filter

Frigidaire Professional Dishwasher Not Starting (And Not Working)

There are some reasons your Frigidaire Professional dishwasher has refused to start and therefore declined to work.

1. Frigidaire Professional Dishwasher is Not Filing with Water

Your Frigidaire dishwasher isn’t working because it’s not getting any water, which is key for any dishwasher to operate.  The i10 error code shows on the control panel to tell the dishwasher is not getting water.

Start the troubleshooting by checking the water connection to make sure it has a proper link to the water source.

Check the water supply and ensure you’ve turned it ON. If the connection is okay and the supply is on, consider looking at the water inlet valves.

The work of this inlet valve is to open and close, allowing clean water into the dishwasher. If this part is not functioning, the dishwasher won’t get clean water and the unit won’t work. 

You can find the water inlet valve at the back of the dishwasher’s front kick plate. Use a multimeter to check for continuity, and if it doesn’t report continuity, get a new water inlet valve for replacement.

2. Frigidaire Professional Dishwasher Thermal Fuse Might Have Blown Up

Another reason your dishwasher is not working is that the thermal fuse has blown.

If the thermal fuse overheats, it blows up. This happens to prevent your dishwasher from damaging because of overheating.  

If the fuse is the reason for why your Frigidaire Professional dishwasher won’t start, consider replacing it with a new one.

But before you replace the thermal fuse, consider running a diagnosis to determine what made the dishwasher overheat to an extent of the fuse blowing up.

3. Your Frigidaire Professional Dishwasher’s Air Gap is Dirty

The purpose of the air gap in the Frigidaire Professional dishwasher is to release excess water that builds up because of hot water.

If you notice that the dishwasher isn’t working properly or not working at all, it could be because the air gap is dirty.

Cleaning the air gap should help fix the problem. And so that you never run into this kind of problem again, you should consider cleaning the air gap once or twice a month give or take.

Even though the chance of having a burst due to too much heat is too low, having the air gap cleaned is important for a normal function. Use a pipe cleaner to clean out any dirt around the plug socket where the air gap is.

4. Frigidaire Professional Dishwasher Door Latch is Not Functioning

If the dishwasher is not working and the power is on, consider checking the door latch.

Frigidaire dishwashers won’t work if you haven’t fully closed and latched the door. From what I understand, the door latch acts as a safety component that keeps water from getting out of the dishwasher and potentially flooding your kitchen.

In action, the door latch sends signals to the door switch, which tells the control panel that the door is fully closed to start running a wash cycle.

But if the latch is faulty, the control panel will assume that you haven’t closed and latched the door. As such, the dishwasher won’t start working. 

Take time and look for damages on the door latch. Also, use a multimeter to test for continuity. Have the door latch replaced in case it appears broken.

5. Frigidaire Professional Dishwasher Main Control Board Faulty

The main control panel is the heart of your Frigidaire Professional dishwasher because it controls all the dishwasher functions.

This part of your dishwasher is computerized and in case it has a problem, some important functions like powering on won’t work.

Knowing your dishwasher has a main control panel issue is easy. You’ll notice that your unit doesn’t light even when properly plugged into power. To resolve the issue, and get your dishwasher up and running, have the main control board replaced.

6. Frigidaire Professional Dishwasher Not Draining

If your Frigidaire Professional dishwasher is not draining, it could be because: 

The Drain Hose is Blocked

The drain hose acts as a wastewater exit and connects the dishwasher to the sink. This part is prone to blockage and can sometimes get kinks, which can make the dishwasher not drain.

To get the drain hose to work properly, try straightening it remove the kinks and running water at high pressure through it to remove the blockage.

To remove blockages in the drain hose of your Frigidaire Professional dishwasher:

  • Unplug the appliance from power
  • Locate the drain hose, which is behind the dishwasher
  • Disconnect the pump and drain hose
  • Use a straightened wire hanger to get rid of any blockages you can find

If completing the four steps above don’t yield results, there’s a high chance the drain hose is fault. In such a case, consider replacing the current drain hose with a new one.

drain hose for frigidaire dishwasher

Your Frigidaire Professional Dishwasher’s Filter is Dirty 

The dishwasher might not be draining because food particles are blocking the filter.

These food particles stick on the filter when screened from getting into the drainage pump. With time, the filter can clog with debris, hence preventing wastewater from draining off the dishwasher.

You will need to clean the filter to get the unit to start draining again. To do this:

  • Take out the bottom rack of the dishwasher.
  • Remove the wash arm from the filter by pressing the wash arm anticlockwise.
  • Separate the filter and wash arm.
  • Rinse the filter with running water to get rid of debris. You can also brush the filter with a soft-bristled brush as water runs.
  • Put the filter and wash arm back together, and fix them back in the dishwasher.
  • Lock the two parts into place by pressing the wash arm and rotating the filter to the right.

You should clean your Frigidaire Professional dishwasher’s filter at least once a month.

Frigidaire Professional Dishwasher Troubleshooting Codes

Frigidaire Professional dishwasher comes loaded with several sensors that tell which part of the washer needs attention or replacement.

If the dishwasher malfunctions, you will see error codes on the control panel, which you can clear by fixing that specific problem followed by a soft or hard reset.

The following are the Frigidaire Professional dishwasher troubleshooting codes you should know about:

1. Error Code LO

If you see the LO error code displayed on the control panel, it means your Frigidaire Professional dishwasher is out of the rinse.

To clear this error, simply locate the rinse dispenser, open it, and refill with the recommended rinse aid.

2. Error Code HO

If this error appears on your Frigidaire Professional dishwasher, it suggests that the water temperature is too low. It can also mean that the dishwasher is taking too long to heat the water.

To fix this issue, boil water and then run it in your sink before turning the dishwasher on. Doing so gets rid of cold water from the lines.

You may also want to check the heating element. Get a new heating element for the dishwasher if the current one stopped working. 

heating element for frigidaire dishwasher

3. Error Code i10

If you see this error, it means the water level detected by the dishwasher is too low for the unit to get its job done. 

Usually, when the error i10 appears on the control panel, it means the channel supplying water to the dishwasher has a problem.

Therefore, look for any kinks or blockages in the hose. Check the point that controls water flow through the lines, and turn it back ON if it’s OFF.

4. Error Code i30

If error code i30 means the dishwasher is leaking at its base.

Check the pressure sensor and ensure it is clean and functional. Next, check the drain pump and make sure it is working properly. Also, examine the water inlet valve to ensure no clogs or debris, which may cause blockage.

5. Error Code PF

The PF error code is associated with power. It means that your dishwasher isn’t getting enough power required to clean dishes.  

To solve the problem, you will need to figure out how many volts are getting into the dishwasher. You can use a multimeter to do the testing.

If there is power insufficiency, try replacing the fuse. If there is enough power getting to the unit, consider doing a soft or hard dishwasher reset.

6. Error Code CL

This code shows whenever you forget to close or haven’t closed the dishwasher door properly. Keep in mind that failing to close the door will make the dishwasher not to start.

First, check the door to ensure you’ve closed it properly.

If you’ve closed the door, but you still see the error code on the control panel, inspect the door switch and replace if it’s faulty.

If the switch is functional, the door is closing correctly, and no wire is faulty but the fault code still appears on the screen, consider replacing the entire control panel.

7. Error Code ER

Fault code ER will appear if you press a key for longer or a key is stuck after pressing. This sends the dishwasher wrong signals that leads the ER code error to appear. 

To fix this, check all the keys on the user panel to make sure they’re functioning properly. Replace the whole keypad if you can’t find a stuck key.

In case the fault code persists even after replacing the keypad, you should consider replacing the main control board.

Frequently Asked Questions

1. How Do I Reset My Frigidaire Professional Dishwasher?

To reset a Frigidaire Professional dishwasher:

  • Long press and hold down the cancel button on the user interface.
  • Disconnect the appliance from power and wait for 5 to 10 minutes to allow it to reset back to default settings hence clearing any system error.

Your dishwasher should now be ready for a completely new wash cycle.

What online stores were used to order the parts and how was the experience?

I used two online stores to order the parts, both of which provided an exceptional experience. The first store I ordered from was, and despite mistakenly ordering the wrong part, their customer service made the return process simple and easy. While I had to cover the shipping cost for the return, their quick response and understanding were greatly appreciated. The second online store I used was AppliancePartsPros, and I found their prices to be moderately priced. In fact, the correct part I ordered from them was even $20 cheaper than the incorrect one from, which helped offset the shipping cost for the return. Overall, both online stores were reliable, efficient, and provided a positive shopping experience.

What was the issue encountered after installing the new part and how was it resolved?

After installing the new part, the users encountered a musty smell emanating from their dishwasher after a few runs. Perplexed by the issue, they decided to investigate further. They removed the part and inspected the drain hose, suspecting that it could be the source of the problem. They discovered that when they slid the dishwasher back into place, the drain hose had been moved out of its proper position, causing water to get trapped inside. This resulted in the unpleasant smell. To resolve the issue, they carefully repositioned the drain hose to its correct placement, allowing gravity to naturally drain the water. As a result, the musty smell dissipated, and the users have not encountered any further error code.

Did the new Pressure Sensor Kit solve the problem?

According to the user’s feedback after a week of using the new Pressure Sensor Kit, it seems that the problem has indeed been resolved. The user reported that the part worked exceptionally well and they did not experience any issues after installing it. However, they did encounter a separate problem with a musty smell coming from the dishwasher after a few runs. Upon investigation, they found that the drain hose had been moved, causing water to get stuck in it. Once they repositioned the drain hose and allowed gravity to take over, the smell disappeared, and they have not received any error codes since then. Therefore, based on the user’s account, it can be concluded that the new Pressure Sensor Kit successfully solved the initial problem.

What steps were taken to troubleshoot the issue?

What was the final outcome of the troubleshooting process?

The final outcome of the troubleshooting process was that the dishwasher successfully ran on the Quick Cycle and Normal Cycle after cleaning the filters, checking for blockages, and cleaning the pressure sensor. However, a second load on the Normal Cycle still resulted in a failure with the i20 error.

Were there any repeated attempts or additional actions taken to resolve the issue?

Yes, there were repeated attempts and additional actions taken to resolve the issue. Multiple Quick Cycles were run, but they all failed at the 8-minute mark. The dishwasher was left overnight, and the breaker was reset in the morning before running another Quick Cycle, which was successful.

What were the specific outcomes of each troubleshooting step?

The outcomes of each troubleshooting step were as follows: below

What were the specific steps taken to troubleshoot the issue?

The specific steps taken to troubleshoot the issue were as follows: below

What were the possible causes of the issue with the dishwasher?

The possible causes of the issue with the dishwasher could be a blockage in the food disposal, a blockage in the drain hose attached to the dishwasher, or some gunk inside of/faulty pressure sensor.

In this comprehensive guide, I will address common Frigidaire Professional dishwasher problems that you may encounter. My aim is to empower you with the knowledge and tools to tackle these issues on your own, without the need for costly professional assistance. By following the steps outlined below, you can perform a Frigidaire dishwasher diagnostic and resolve errors, saving both time and money.

To troubleshoot the issue at hand, multiple steps were taken to identify the root cause. The potential culprits considered were a blockage in the food disposal, a clogged drain hose, or a malfunctioning pressure sensor. In a systematic approach, each possibility was thoroughly examined and tested.

Initially, the focus was on the internal filters of the dishwasher. These filters were carefully cleaned, and the exposed sensors were inspected for any signs of blockage. Despite running the dishwasher on a Quick Cycle, the issue remained unresolved.

The investigation then shifted towards the drain hose connected to the disposal. To determine if there was any backup causing the problem, the hose was detached and water was directed into a bucket. This test confirmed that there was no blockage in the hose. However, running the Quick Cycle once more did not yield the desired outcome.

Taking it a step further, the dishwasher was pulled out to examine the hoses more closely. After thorough inspection, it was determined that the hoses were clear, eliminating them as the source of the issue. The next course of action involved removing and cleaning the pressure sensor. This process, guided by a helpful tutorial, involved using Qtips to meticulously clean the sensor. During this procedure, a slight film and some black specs were successfully removed. Once reassembled, the dishwasher was tested again.

Upon running the Quick Cycle, a glimmer of hope emerged as it was finally successful. Encouraged by this progress, the dishwasher was then tested on a Normal Cycle, which again proved to be a success. However, the true test came when a second load was run on the Normal Cycle, only to be met with disappointment as the i20 error resurfaced.

Undeterred, multiple attempts were made to run Quick Cycles, all of which failed at the same point, indicating a persistent issue. In a last-ditch effort, the dishwasher was left overnight, and the breaker was reset the following morning. Miraculously, this endeavor led to yet another successful Quick Cycle.

In conclusion, this thorough exploration of troubleshooting steps undertaken demonstrates the dedication to resolving the dishwasher issue independently. By meticulously cleaning the filters, inspecting hoses, and addressing the pressure sensor, progress was made in identifying and overcoming the problem.


I hope that this guide will help you to identify and fix all the possible problems with your Frigidaire dishwasher.

I recommend trying the quick DIY fixes that I’ve suggested before you think of calling a professional technician for help.