Error code reference

Trane Furnace Error Code ERR 22

Soft lockout due to flame lost or ignition retries (10 recycles or 3 ignition attempts within a single call…

Soft lockout due to flame lost or ignition retries (10 recycles or 3 ignition attempts within a single call for heat results in 1 hour lockout).

MyPros+ Max

Get the full diagnostic procedure for ERR 22.

$29/month · Cancel anytime · Or $9.95 3-day pass

M+

M+ Max·Trane Furnace

ERR 22 on my Trane Furnace

M+

Soft lockout due to flame lost or ignition

From Service Manual 660319, p.51:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure door lock assembly resistance across the PTC terminals. Expected: ~200 ohms cold, rising sharply once energized.

3.Inspect strike and latch alignment. A warped door or misaligned strike prevents the switch stack from closing in the correct sequence.

Part W10810403

Door lock assembly

78,000+ service manuals · 160,000+ error codes · 55+ brands

$29/month · Cancel anytime · Or $9.95 3-day pass