Error code reference

Goodman HVAC Error Code 5

False flame sensed by the ignition control, indicating a sticking gas valve or flame sense circuit issue.

SourceGoodman HVAC - Service Manual: Package Units (PC, PH, PGB Series)S-313

Diagnostic procedure

The full 5 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

First diagnostic step

Check for sticking gas valve; replace if confirmed.

SourceGoodman HVAC - Service Manual: Package Units (PC, PH, PGB Series)S-313

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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 Goodman hvac.

Models covered by the manuals that document this code

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The full 5 procedure

Where this code is documented

Models covered by the manuals that document this code

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