Whirlpool Washer Displaying F20 Error Code? Here’s Why

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When your Whirlpool washer is showing an F20 error code, this means there is something wrong with the water supply to your washing machine.

The most common reasons this occurs are that the water supply to the washer is not turned on correctly, there is a blockage in the water hose, the water pressure is not strong enough, or you are using the wrong detergent.

To find the cause of the problem and fix it, simply follow our step-by-step instructions in this guide, and your washing machine should be working again quickly.

This guide covers all major Whirlpool washer models, including:

2LA5700XMW0

2LA5700XMW1

2LSR5233BN0

2LSR5233BQ1

2LSR5233BW0

2LSR5233BZ1

LSC8244EQ0

LSC8244EQ1

LSC8244EZ0

LSC8244EZ1

LSR6132EQ0

LSR6132EZ0

LSR7233EQ0

LSR7233EW0

LSR7233EZ0

LSR8233EQ0

LSR8233EZ0

LSR8244EQ0

LSR8244EQ1

LSR8244EZ0

LSR8244EZ1 

Step One – Check the Water Hoses

The first step is checking the water hoses to make sure they are not kinked, bent out of shape, or blocked.

To check the water hoses:

  1. Turn the power off to your washing machine.
  2. Gently pull your washer out from the wall so you can access the back of it.
  3. Check that the hoses are not kinked or bent out of shape, which will stop water from being able to properly flow through them.
  4. Check that the hoses are connected tightly. When they are not connected properly, this can adversely affect the function of the water valves that might be inside the hoses.
  5. Clean the hoses out, which you can do by first turning the water supply off and then disconnecting the hoses from both ends.
  6. Run water through the hose and see if there are any blockages. If so, clean the hose out with a piece of wire until you unblock it. Also, check that there are no leaks in the hose.
  7. Reattach the hoses tightly and make sure they are in the correct position so water can flow through them.

Step Two – Check the Water Pressure

The next step is to check the water pressure. The water cannot be less than 10 psi. If it is, the washer might not work properly, and the F20 error code might show on your display screen.

The easiest way to check if your water pressure is OK is to call your water utility company and ask them for your pounds-per-square-inch (psi) level. If you have a water pressure gauge, you can test the pressure yourself by attaching the gauge to the faucets.

Step Three – Ensure You Are Using the Correct Detergent

The next step is to ensure you are using high-efficiency detergent in your washing machine. When you use non-high-efficiency detergent, it might produce excessive suds, and this can cause your washer to not be able to detect water flow into your washing machine. If this happens, the F20 error code might appear, and your washer will stop working.

If you are using the correct detergent, move on to the next step.

Step Four – Check That the Water Faucets Are Turned On

The last step is to check if both the hot and cold water are turned on correctly. When both are not turned on, the water supply to your washing machine might be adversely affected.

All you have to do is check that the faucets are turned on completely, and if not, open them up. If you only want to use cold water, then you need to install a “Y-connector,” which will provide water to both the hot and cold hoses. Once you’ve ensured that the faucets are turned on, you can move on to the final step.

Step Five – Remove the Error Code

Now you’ve gone through the above steps, it’s time to remove the error code and see if your washing machine works correctly.

To do that:

  1. Press the “pause/cancel” button twice. Please note that in some specific models of LG washing machines the appliance will begin to drain when you first turn it back on after turning it off. You need to wait for about 8 to 10 minutes before you can try pressing “pause/cancel.”
  2. If pressing “pause/cancel” twice doesn’t work, you need to unplug your washing machine from the power for at least one minute and then plug it back in, turn it on, select a cycle, and press the “start” button.
  3. Hopefully, at this point the F20 error code has gone and your washing machine is working again. If the error code is still displaying, you will need to call a qualified technician to come and inspect your washing machine.
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