Bryant 22: Abnormal flame-proving signal

Source: Bryant manual (PDF) (opens in a new tab) ↗ · Updated

Status code22Bryant
What does Bryant 22 mean?

Abnormal flame-proving signal. Flame is proved while the gas valve is de-energized. The inducer runs until the fault clears. The chart says to check for a leaky gas valve or a stuck-open gas valve.

How it shows: Amber LED on a Bryant 80% two-stage variable-speed furnace (troubleshooting guide TG-GFB80-02). Short flashes are the first digit and long flashes are the second. Code 22 is 2 short and 2 long

Bryant 22 means flame is proved while the gas valve is de-energized. The inducer keeps running until the fault clears. The chart lists a leaky gas valve or a gas valve stuck open. There is no filter check and no 3-hour auto-reset on this row. Code 21 is the lockout that will not auto-reset because of valve wiring or the valve relay. If you smell gas with 22 on the LED, leave.

Likely causes

  • Leaky gas valve
  • Stuck-open gas valve

Safe checks for 22

  1. Count 2 short flashes and 2 long flashes. Leave the furnace off if you smell gas
  2. Technicianinspect the gas valve. The inducer is supposed to keep running until this fault clears
Safety firstIf you smell gas, do not touch any electrical switch or use a phone in the building; leave immediately and call your gas supplier from outside. Turn off electrical power at the furnace switch or breaker before opening any panel, and never bypass or jumper a limit, rollout or pressure switch. Gas valve, burner, venting, wiring and control-board work should be done by a licensed HVAC technician.

Capacitors can hold a charge after the power is off. Safety terms.

When to call a pro

Call a licensed HVAC technician immediately. Do not reset this and leave the furnace running.

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Parts & tools for this fix

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Furnace inducer (draft) motor: guide

Technician step in this code: inspect the gas valve. The inducer is supposed to keep running until this fault clears

This one is for a technician to test or replace, so we only explain it and do not link to buy it.

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