Bryant furnace: Code 22 — Abnormal Flame-Proving Signal
Safety issue — act now
Bryant furnaces share the Carrier control platform — this code table applies to the equivalent Bryant models. Confirm against your unit's panel label.
What does code 22 mean on a Carrier furnace? Flame is proved while the gas valve is de-energized; the inducer runs until the fault clears. Official causes: a leaky or stuck-open gas valve.
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.
Gas off at the appliance valve, same-day licensed tech. Not a DIY code. DIY part cost: $90–200 — a pro visit for this class of fault typically runs $150–350.
What causes it (in order of likelihood)
- Leaky / stuck-open gas valve TECH
Parts referenced by this code
Always match parts against your model's parts list — part numbers vary within a series.
Applies to
58STA · 58STX · Bryant 310/311/312 series · Payne PG8M series
Different Bryant generations use different code maps. If your series isn't listed, don't assume this meaning — check your blower-door label.
Verified against Carrier 58STA/58STX Installation & Service Instructions (1106202L), p.37/48
Last verified 2026-07-06 · how we verify