First try the solutions suggested here to possibly avoid the cost of a service call...
Washer displaying code message and tone sounds
"F20" (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?
Plug in washer or reconnect power. Re-select cycle and press
START. If the problem remains, call for service.
"F21" (Drain Problem)
Select PAUSE/CANCEL twice to cancel the cycle. Unplug
washer or disconnect power.
Check the following:
Is the drain hose kinked?
Is the drain hose frozen?
Is the drain hose clogged?
Is the drain hose more than 96" (2.4 m) above the floor?
Plug in washer or reconnect power. Re-select cycle and press
START. If the problem remains, call for service.
"SUD" (Suds Routine)
When excessive suds are detected, a suds routine
automatically starts. This routine removes extra suds and
assures proper rinsing of your garments. "SUD" is displayed
during rinsing and at the end of the cycle to inform you that
Suds Routine was activated. Use only HE (High Efficiency)
detergents.
"F22" (Front door lock)
Select PAUSE/CANCEL twice to cancel the cycle.
Check the following:
Is the washer door firmly shut?
The door must be completely closed for the washer to
operate. The door may look closed, but may not be latched.
Open the door and close firmly.
Were you washing a large load?
Before you close the washer door, check for laundry items
sticking out beyond the door opening. Leave enough space
in the washer to allow the clothes to tumble freely. An
overloaded basket may keep the door from shutting
completely. Reduce your load size if needed.
Press POWER and select START.
"F" codes other than F20, F21 or F22
Select PAUSE/CANCEL twice to cancel the cycle. Select
DRAIN/SPIN if there is excessive water in the washer.
Re-select cycle and press START. If the problem remains, call
for service.
TROUBLESHOOTING
Washer won't start
Plug into a grounded 3 prong outlet.
Do not remove ground prong.
Do not use an adapter.
Do not use an extension cord.
Failure to follow these instructions can result in death,
fire, or electrical shock.
Check the following:
Is the power cord plugged into a grounded 3 prong outlet?
Is the washer door firmly closed?
Has a cycle been selected, but START has not been selected
and held for 1 second?
Was the door open after completion of last cycle?
Washer won't fill, wash or rinse
Check the following:
Is the power cord plugged into a grounded 3 prong outlet?
Is there power at the plug? Check electrical source or call an
electrician.
Are the hot and cold water faucets turned on?
Is the water inlet hose kinked?
Are the water inlet valve screens clogged?
Turn off the water and remove inlet hoses from the washer.
Remove any accumulated film or particles. Reinstall hoses,
turn water on and check for leaks.
WARNING
Electrical Shock Hazard
21