Goodman Furnace Error Codes & Fix Guides
All FixCode Guide coverage for Goodman furnace error codes: start with the complete code list, or jump to a deep-dive guide for a specific code. Everything is verified against Goodman manufacturer documentation.
Guides in this section
Goodman Furnace Error Codes List: Every Code ExplainedGoodman Furnace F02 Error Code: Meaning, Causes & FixGoodman Furnace 9H Error Code: Meaning, Causes & FixGoodman Furnace H6 Error Code: Meaning, Causes & FixGoodman Furnace 5 Flashes: What the Blinking Light Means & Fixes
Most searched Goodman furnace codes
| Code | Meaning |
|---|---|
| 5 Flashes | On Goodman's single-stage boards: flame sensed without the gas valve energised — the GMES80 wiring diagram prints it verbatim: '5 FLASHES = FLAME SENSE WITHOUT GAS VALVE [ENERGISED]'. On Goodman's two-stage boards the same count means something else entirely: open rollout switch or open control board fuse. The generation split is documented in the what — read it before acting on any of it. |
| 9H | Not a Goodman fault code at all — "9H" is the status display "gH" (gas heat, single-stage control) from the status-code table in Goodman's furnace installation manuals, with the seven-segment display's lowercase g reading as a 9. It means the furnace is running a heat call, and there is nothing to reset. |
| F02 | Not a Goodman code — no Goodman furnace document defines 'F02'. Goodman furnaces report faults as counted LED flashes on the control board or, on communicating/modulating models, as E-codes (E0, E1, E2, E3 and family) on a character display; F02 appears in neither system, so this page explains Goodman's real code language and how to get the true code from your furnace instead of inventing a meaning for this one |
| H6 | Not a Goodman fault code — "H6" is the gas-heat status "gH" read upside down on an inverted seven-segment display. The suffixes owners report with it are inverted real codes from Goodman's troubleshooting chart: 033 is EE0 (ignition lockout) and 233 is EE2 (pressure switch circuit not closed) read the same wrong way up. |