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Error code reference
Whirlpool Dishwasher Error Code FA
OWI (Optical Water Indicator) defective - flowmeter signals receipt of 3.4 liters of water but OWI signal (water in sump) is missing.
SourceWhirlpool Dishwasher - Service Manual: ADG8440AVp. 14
Diagnostic procedure
The full FA procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Clean the OWI lens, run water inlet for 10 sec and wash pump (SPM) for 10 sec; if still no signal, FA fault is confirmed.
SourceWhirlpool Dishwasher - Service Manual: ADG8440AVp. 14
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
1 manual in the MyPros+ library documents this code for Whirlpool dishwasher.
Models covered by the manuals that document this code
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