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Error code reference
Amana Dryer Error Code HEATER FAULT
Burner fan air switch did not close within 10 seconds of blower start-up, or combustion air flow was lost during firing cycle (gas dryers only).
SourceAmana Furnace - ADC AD-464 Service Manual PastProduction Industrial: SC-125-BHp. 23, 44, 55-56
Diagnostic procedure
The full HEATER FAULT 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
Check burner fan motor operation, burner fan air switch setting (~0.59" W.C.), combustion air lint filter for clogging, and combustion air damper adjustment.
SourceAmana Furnace - ADC AD-464 Service Manual PastProduction Industrial: SC-125-BHp. 23, 44, 55-56
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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