Duet Steam washer, F20 error. help

It helps to have FULL make and model in such questions, but here are a few ideas

The F35 error code indicates an analog pressure sensor error. The analog pressure sensor is the component that detects water level in the washer tub. This error can usually be cleared but it will occur again if the main control board still detects a problem with the signal from the analog pressure sensor.
Jun 4, 2011

F35 error code appears during cycle - iFixit

https://www.ifixit.com > Answers > View > F35+error+co...
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Whirlpool duet washer f35 error code

https://all-errors.com > whirlpool-duet-washer-f35-error
The F35 error code in the Whirlpool washer indicates some problems with the water level pressure switch. This sensor is responsible for measuring the amount ...

Troubleshooting the F35 Sud Error Code in the Whirlpool Duet ...

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12:49 Troubleshooting the F35 Sud Error Code in the Whirlpool Duet Steam Washer · For more tech advice on ...
YouTube · SamuraiRepairman · Oct 5, 2013

he f20 (or fh) error code on a Whirlpool Front Load Washer is an indication of a water supply issue. To remove the f20 error code from the display panel, press Pause/Cancel 2 times. If that did not clear the error code, see below for what may be wrong

heres a link...https://removeandreplace.com/2016/01/12/whirlpool-washer-error-code-f20-troubleshooting-front-load-washing-machine/

The following list of codes indicates an electronics communication problem with the washer: - Duet HT washer - F01, F03, F06, F11, F23, F24, F27, F28, F29, F30, F31, F32, F35, F42, F61, F62, F63, F64, F65, F70, F71, and F99

If Pause/Cancel does not work:

1. Unplug washer or disconnect power for one minute.
2. Plug in washer or reconnect power.
3. Re-select the cycle and press Start.

NOTE: If the error remains on the display, call for service.

I would first replace the door latch/lock assembly, a number of users have and it fixed the F-11 error code completely. Its the cheapest part for this problem.

Hope helps.

Hi,
The following list of codes indicates an electronics communication problem with the washer:
Duet HT® washer - F01, F03, F06, F11, F23, F24, F27, F28, F29, F30, F31, F32, F35, F42, F61, F62, F63, F64, F65, F70, F71, and F99
Duet® washer - F05, F07, F09, F10, F11, F13, F14, F15, F21, F22, and FdU
Duet SportTM washer - F01, F11, F23, F24, F27, F28, F29, F30, F31, and F33

To remove the error display, press Pause/Cancel twice.

If Pause/Cancel does not work:

1. Unplug washer or disconnect power for one minute.
2. Plug in washer or reconnect power.
3. Re-select the cycle and press Start.

NOTE: If the error remains on the display, call for service.

Take care

If this is a steam unit you have a bad analog pressure switch,has been a common issue in those units,Gives an F35 core and sometimes a SUD code. 

not enough water going to the machine..

“Spin” and “Wash” (HT “Rinse” and “Cycle
Complete”) illuminated or “F20” on display
(Water Inlet Problem—no water or insufficient
water supply)
Select PAUSE/CANCEL twice to cancel the cycle
Unplug washer or disconnect power.
Check the following:
Are water faucets completely turned on?
Are screens at inlet hose connection to washer
clogged? Are water inlet hoses kinked?
Are water inlet hoses frozen?

Sud= The unit has sensed there is too many suds in the unit it will flush and pump out for 5 min and restart on its own..This is caused by too much soap use..
From the book :
SUD Code=
If too much detergent was used:
—Run the unit through a Rinse/Spin cycle.
—Run a Normal cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged
or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump,
pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic test or any
cycle.

Hi!

“F20” on display
(Water Inlet Problem—no water or insufficient
water supply) Select PAUSE/CANCEL twice to cancel the cycle
Unplug washer or disconnect power. Check the following: Are water faucets completely turned on?
Are screens at inlet hose connection to washer
clogged? Are water inlet hoses kinked? Are water inlet hoses frozen?
Do rate the solution.

Thanks
Rylee

The following list of codes indicates an electronics communication problem with the washer:
Duet HT® washer - F01, F03, F06, F11, F23, F24, F27, F28, F29, F30, F31, F32, F35, F42, F61, F62, F63, F64, F65, F70, F71, and F99
Duet® washer - F05, F07, F09, F10, F11, F13, F14, F15, F21, F22, and FdU
Duet SportTM washer - F01, F11, F23, F24, F27, F28, F29, F30, F31, and F33

To remove the error display, press Pause/Cancel twice.

If Pause/Cancel does not work:

1. Unplug washer or disconnect power for one minute.
2. Plug in washer or reconnect power.
3. Re-select the cycle and press Start.

NOTE: If the error remains on the display, call for service.

The following list of codes indicates an electronics communication problem with the washer:
Duet HT® washer - F01, F03, F06, F11, F23, F24, F27, F28, F29, F30, F31, F32, F35, F42, F61, F62, F63, F64, F65, F70, F71, and F99
Duet® washer - F05, F07, F09, F10, F11, F13, F14, F15, F21, F22, and FdU
Duet SportTM washer - F01, F11, F23, F24, F27, F28, F29, F30, F31, and F33
PLACEHOLDER FOR ART
To remove the error display, press Pause/Cancel twice.
If Pause/Cancel does not work:

1. Unplug washer or disconnect power for one minute.
2. Plug in washer or reconnect power.
3. Re-select the cycle and press Start.

NOTE: If the error remains on the display, then call for service.

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