28 Common Frigidaire Dishwasher Error Codes Explained

Stacy Randall
by Stacy Randall

Just like the rest of our technology, dishwashers have become “smarter” in recent years. The newest models are full of sensors that can tell us exactly what part of their complicated mechanism needs attention. So once you’ve identified the problem, what do you do next?

There are 28 common dishwasher codes for the Frigidaire including:

  • HO
  • LO
  • PF
  • i10
  • i20, 140 or iFo
  • i30
  • i50, i60, iCo
  • UO
  • UF
  • ER
  • CE
  • CL
  • Dp
  • FL
  • HS
  • RA
  • RE or RF
  • RT 
  • SD
  • TU

The steps you take next will be dependent upon the code that your dishwasher is showing.

When error codes pop up on dishwashers, it can be extremely frustrating and stressful. But, this article will explain the 28 most common ones for Frigidaire dishwashers so you can fix the issue as soon as it pops up. Let’s get started!

Do You Need Appliance Repair Services?

Get free, zero-commitment quotes from pro contractors near you.

What Are The Error Codes For Frigidaire Dishwashers?

Sometimes things go wrong, and your dishwasher is trying to communicate a problem. Reading these codes can be like speaking a different language. Here’s a list of Frigidaire dishwasher error codes and how to resolve them.

HO- Heat Delay Or Low Water Temperature

This error code signifies a heat delay or low water temperature. This simply means you’ll have a delayed cycle start until the water temperature rises. The dishwasher should be able to do it on its own in a short period of time.

This code is relatively common, especially if you have a small or older-model water heater. If you see this light consistently, try running the hot water in your sink before running your dishwasher. This will flush any cold water sitting in your pipes and allow the hot water to enter more quickly.

LO- Rinse Aid Is Low

In this case, the rinse aid is low. You can efficiently resolve this code by refilling the rinse aid dispenser. Rinse aid is a surfactant that prevents water from forming into droplets.

As the water is encouraged to stream away instead of pooling, your dishes will emerge from the dishwasher spot-free.

PF- Power Failure

This error code stands for power failure and is one of the most common dishwasher error codes. There could have been a power flicker, power outage, or tripped breaker. You can often resolve this code by opening and closing the dishwasher door to reset the cycle.

If this code occurs frequently, check the dishwasher’s voltage power to ensure it’s consistent and appropriate for this appliance.

i10- Low Fill Has Been Detected

This error code means that a low fill has been detected. There is not enough water in the dishwasher. Make sure the water supply line is not pinched or kinked up in any way. Ensure that your water shutoff valve is all the way open.

i20, i40, or iFo- Clogged Filters

These codes can mean that filters are clogged, or a restricted drain line has been detected. To resolve it, try cleaning the filters and the sump area. Check for a pinched or blocked drain hose.

Does the drain line connect to a disposal? Make sure that you have removed the knockout plug, and contents can flow freely.

i30- Overflow Of Water

If this error code pops up, there is a leak or overflow of water in the bottom pan. To resolve the issue, check to see if there’s a loose connection at the water inlet valve that’s allowing water to leak out. Ensure that the dishwasher is appropriately leveled to prevent pooling.

i50, i60, and iCo- Unit Needs Restarting

These three codes have different meanings but the same recommended solution.

  • Error code i50: A problem has been detected with the drain or wash motor.
  • Code i60: This means a problem has been detected with the water heating system.
  • Error code iC0: Implies that there’s an issue with the electronic control system.

Unfortunately, these are not necessarily problems that you, as the user, can problem-solve yourself. To clear the error code and restart the unit, press and hold the cancel button.

Alternatively, turn the power off at the breaker for five minutes. If this doesn’t resolve the problem, you’ll need to call a professional to service the unit.

UO- Vent Is Open

This dishwasher error code indicates that the vent is open. If this code appears, check the vent assembly to make sure nothing is blocking the vent. You can also check the wiring to make sure everything is intact.

UF- Vent Fan Failed

If you see this code, the dishwasher is signaling that the vent fan has failed or is not running. To troubleshoot, check the vent fan assembly and wiring. You may need to replace the vent fan, which costs around $50 (not including labor if you use a professional).

ER- Membrane Switch Failure

No, this code does not mean that you need to take your dishwasher to the emergency room. It signifies a membrane switch failure or a stuck key.

This can occur if a button on the control panel is malfunctioning. To resolve, check the wiring connections between the main control panel and the keypad.

CE- Configuration Error

This error code means that your dishwasher is experiencing a configuration error. Similar to the ER code, problem-solve this code by checking the connections between the main control panel and the keypad.

CL- Door Is Open

This code is one of the most common: it means that the door is open. Try opening and closing the door again, making sure it latches fully. You should hear a click; make sure there’s nothing in the way of the door.

If the door doesn’t close properly, check to make sure that nothing is blocking the latch. If you continue to see this error message, check the door switches to ensure they’re not broken or damaged.

You can also check the wiring between the door switches and the main control board to ensure proper connections.

dP- Drain Pump Issues

This error code relates to the drain pump. It will show up during relay tests when the drain pump is activated.

FL- Open Water Valve

No, your dishwasher isn’t on vacation in Florida. This code indicates that the water valve is open. It’s displayed during a relay test when the water valve is activated.

HS- Hall Sensor

This dishwasher error code is known as a hall sensor error, and it relates to the motor. To troubleshoot, check the wiring between the motor and the main control board. If you can’t resolve the error, it may be time to replace the motor.

RA- Rinse Aid Switch Failure

Unlike the RA that lived on your floor in college, this one won’t reprimand you for having a few beers. This code indicates a rinse aid reed switch failure.

First, try refilling the rinse aid dispenser to see if that clears the code. If not, check the wiring between the main control board and the dispenser. If all else fails, you may need to replace the dispenser assembly.

RE and RF- Rinse Aid Reed Switch

Both of these codes refer to the rinse aid reed switch. The RE code indicates a closed switch in the dispenser.

The RF code tells you that the reed switch is open. Try refilling the rinse aid dispenser to clear this code. If that doesn’t work, you may need to replace the dispenser assembly.

RT- Relay Test

Your dishwasher just retweeted your last message! Just kidding. It’s referencing the relay/Triac test, telling you that the relay test has been activated.

SD- Detergent Dispenser Error

This error code refers to the detergent dispenser. It will display in relay test mode when the dispenser has been activated.

TU- Turbidity Sensor Failure

The TU error code indicates a turbidity sensor failure. You’ll need to check the wiring between this sensor and the main control board. As a last resort, you may need to replace the turbidity sensor.

User Instruction Codes for Frigidaire Dishwashers

Sometimes your Frigidaire dishwasher will show you a code that’s simply an instruction or piece of pertinent information. This information is not an error message. Here are some standard user instruction codes.

LOC- Door Is Locked

This code shows you that the door is locked. A locked door is necessary for the cycle to start and may remain locked for a moment after the cycle has finished.

L0-L6- Level Of Rinse Aid

This number indicates the level of rinse aid that your machine will disperse. Use L0 for less and L6 for more rinse aid, or anything in between based on your preferences.

Can I Fix An Error Code Myself?

Once you’ve located the cause of your error code, you can do some basic investigating. If you find a clear issue (like a clog in a drain) that you can resolve yourself, congratulations! Your dishwasher will be back in working order in no time.

However, not all problems are easy for homeowners to see or fix. If the error code you’re seeing involves electrical wiring, detailed plumbing, or another unfamiliar trade, call a pro. The cost of an appliance repair call may be inconvenient, but it’s worth it to have the dishwasher repaired safely.

Do You Need Appliance Repair Services?

Get free, zero-commitment quotes from pro contractors near you.

Related Guide

Stacy Randall
Stacy Randall

Stacy Randall is a wife, mother, and freelance writer from NOLA that has always had a love for DIY projects, home organization, and making spaces beautiful. Together with her husband, she has been spending the last several years lovingly renovating her grandparent's former home, making it their own and learning a lot about life along the way.

More by Stacy Randall