water inlet valve
Search by your model number so the part matches.
Whirlpool says F20 (FH on some models) is a water supply problem. On newer models the same thing shows as F8 E1 or LF: the washer is not seeing the right amount of incoming water. Also shown as FH, F8 E1, F8E1, LF on some models.
I am Ramez, owner of R3M Appliance Repair in Rockwall, TX. Below is what this code means, what you can safely try before calling anyone, and the point where it is time to call. If you are in the Rockwall area and want it handled today: (469) 446-4242.
Most common first. In my experience the first one or two on this list account for most Whirlpool F20 calls.
Safe things a homeowner can do. Unplug the washer before reaching into anything.
Water flows strongly from both faucets and the screens are clean but the washer still will not fill. At that point the fix is usually a part, and guessing at parts gets expensive fast. I test first, then quote, so you only pay for what is actually broken.
If the steps above did not clear it, one of these is the usual culprit. Always match the part to your full model number (on the sticker inside the door or on the back).
Search by your model number so the part matches.
Search by your model number so the part matches.
Search by your model number so the part matches.
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Fix the cause first, then unplug the washer (or turn it off at the breaker) for about a minute and restart. The code clears once the washer no longer sees the problem. If it comes right back, the cause is still there.
Yes. Whirlpool uses different displays on different model years, so the same problem shows up as F20 on some machines and FH or F8 E1 or F8E1 or LF on others. The fix is the same.
Usually yes. Water inlet valve and similar parts cost a fraction of a new washer. I tell you the price before any work starts, and if a repair is not worth it I say so.
Most days, yes. I carry common Whirlpool parts on the truck, so many F20 repairs are done in one visit. Call or text (469) 446-4242 with your model number.
Sources checked: producthelp.whirlpool.com. Model-specific behavior varies; your owner's manual is the final word for your machine.
Honest diagnosis, a clear price before any work starts, and a warranty on every repair.