Goodman GMEC96 furnace 5 red flashes: Open Rollout Switch or Open Fuse
Safety issue — act now
What do 5 red flashes mean on a Goodman GMEC96 furnace? The control detected an open flame-rollout circuit or open fuse. The service manual also explains that an open limit lasting 15 minutes is stored as this five-flash fault.
This condition involves the gas or combustion side. If you smell gas or a CO alarm sounds: leave, then call your gas utility. Diagnostic info here is reference — combustion repairs are for licensed technicians. All six emergency signs →
Shut the furnace down and have the heat exchanger, burners, venting, rollout circuit, and fuse circuit inspected before any reset. DIY part cost: $10–30 — a pro visit for this class of fault typically runs $150–350.
What causes it (in order of likelihood)
- Flame-rollout switch opened after a combustion or venting problem TECH
- Open board fuse or limit circuit TECH
Parts referenced by this code
Always match parts against your model's parts list — part numbers vary within a series.
Questions about this code
What do 5 red flashes mean on a Goodman GMEC96 furnace?
The control detected an open flame-rollout circuit or open fuse. The service manual also explains that an open limit lasting 15 minutes is stored as this five-flash fault.
How do I fix Goodman GMEC96 furnace 5 red flashes?
Stop troubleshooting and don't reset. If a CO alarm sounds or you smell gas, leave and call from outside. A technician must inspect burners, venting, and the heat exchanger.
How much does it cost to fix Goodman GMEC96 furnace 5 red flashes?
Cost depends on what the inspection finds. A fuse or limit-circuit issue differs greatly from a combustion or venting problem behind a rollout trip.
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
Last verified 2026-07-06 · page updated 2026-10-03 · how we verify
Related Goodman furnace codes
These codes use the same gmec96 tri-color control — red fault flashes system.