Why Your Whirlpool Washer Is Displaying Error Code FO3 and How You Can Fix It

April 7, 2022

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If your Whirlpool washer is displaying Error Code FO3, then we’ll help you figure out what it means. If you have no idea how to start, you can always ask for professional help from Whirlpool Appliance Repair in Orange.

If you want to know how to fix the error code without needing a Washer Repair in Orange, you can read the instructions below. This way, you can share what you did with the expert technician that Whirlpool Appliance Repair in Orange will send out to you when all else fails.

The Error Code FO3 means there is a problem with the water level of your washer. It could sometimes mean that there is insufficient water to fill the washer at the correct level, or your washer is overflowing with water.

Here is what you can do to eliminate the problem:

1. Reset your washer.

Resetting your washer can be the only solution that won’t complicate your situation. You have to unplug the washer, wait for about 10 minutes, and plug it in again. After this step, the error code should be gone. If it’s still present, there are still other ways you can remove the error code.

2. Check the switch hose for damage. 

The switch hose of your washer could be damaged, which is why your water level is not how it should be. You can check the sitch hose by following these steps:

    • Locate the switch hose of your washer. The location depends on the model of the washer.
    • Once located, check if there are damages. If there is damage, you have to immediately replace the switch hose. There are plenty of stores where you could buy a switch hose. If there is no damage to the switch hose, you can proceed to the following step.
    • Remove the switch hose and check for blockages inside. Sometimes, you don’t notice small items stuck inside the switch hose. If there are blockages, you may remove them and thoroughly clean the switch hose. If there are no damages, reattach the hose and proceed to the following step.

3. Check if the water level sensor is malfunctioning.

The water level sensor controls the amount of water filling up the washer. If the sensor malfunctions, it can’t detect the amount of water entering and can sometimes stop the water flow too early or too late. If this is the cause of the error code shown, here is what you can do:

    • Unplug your machine and locate the water level sensor. 
    • You’ll need a multimeter to know if the sensor is working properly. 
    • Remove all the wires and use the multimeter to detect continuity on the water level sensor. 
    • If the sensor can’t detect anything, you’ll have to replace the sensor. This problem calls for a technician to ensure that the job is done correctly. 
    • If the sensor is working, replace the wirings and plug the machine, you can proceed to the next step.

4. Check the air trap pipe for blockage.

The air trap pipe can be blocked by soap foams or moisture, which won’t be possible to trap in air. Therefore, the error code will appear. Ensure that the air trap pipe is free of blockage that can affect the functionality of your washer. Once you’ve cleaned the air trap pipe and the error code is still visible, proceed to the next step.

5. Check the wirings for loose parts or damages.

If the error code still appears after checking everything listed above, you’ll have to check the wirings. If the wirings are loose or detached, you need to reconnect them again. Ensure to unplug the machine before dealing with electrical wirings in your appliances.

If you are not comfortable with an electrical problem, hire a professional technician to deal with the problem. It is better safe than sorry for this type of damage. Once everything is well adjusted and securely placed, the error code is still there; proceed to the last step.

6. Replace the control board of your washer. 

The error code is still there; it’s time to replace the control board. You can hire an expert Whirlpool technician to do the job. This way, you are ensured that the control board is perfectly secured and brand new. Once the control board is replaced, you can check for the error code again. This time, there won’t be an error code anymore.

Remember that you need to know how to use Whirlpool washer the right way to avoid malfunctions like this from happening again. Getting a reliable appliance repair company like Whirlpool Appliance Repair is the best move to make to ensure that your washer runs all the time smoothly.


At Whirlpool Appliance Repair, your units are well taken care of. Any problems or malfunctions are easy to fix, so trust us to give you back a fully functioning appliance. Therefore, contact us for the best experience you’ll have!