Goodman furnace: Igniter Relay Not Energizing Igniter — 12 Red Flashes
Professional repair
What do 12 red flashes mean on a Goodman GMEC96 furnace? The control board's igniter relay is not energizing the hot-surface igniter. The GMEC96 troubleshooting chart gives a single check for this code: replace the control board.
This is a board-level fault, not an igniter swap. Have a technician confirm igniter wiring and voltage at the igniter terminals before ordering, then replace the control board. DIY part cost: $80–180 — a pro visit for this class of fault typically runs $150–350.
What causes it (in order of likelihood)
- Failed igniter relay on the integrated control board (official check: replace control board) TECH
Parts referenced by this code
Always match parts against your model's parts list — part numbers vary within a series.
Applies to
GMEC96
Different Goodman generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.
Verified against Goodman GMEC96 Service Manual, p.53 — “Control board igniter relay not energizing igniter / Replace control board”
Last verified 2026-09-02 · how we verify
Related Goodman fault codes
These codes use the same gmec96 tri-color control — red fault flashes system.