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Error code reference
Amana Furnace Error Code 7 Flashes
Low flame sense signal - micro-amp signal from the flame sensor is below specified level (50A55/50M61/50V61 controls only).
SourceAmana 40" 80%/90% Gas Furnaces - Service Manual (GUIA/GCIA/GUIB/GCIB Series)p. 80, 107, 113
Diagnostic procedure
The full 7 Flashes 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 flame sensor if coated/oxidized; inspect for proper sensor alignment; check inlet air piping and gas pressures.
SourceAmana 40" 80%/90% Gas Furnaces - Service Manual (GUIA/GCIA/GUIB/GCIB Series)p. 80, 107, 113
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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