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TUX2/TDX2 - Lockouot Codes/Fault Codes

Article ID: 739
Last updated: 3 Jan, 2024

Trane Gas Furnaces: TUX2/TDX2

Re: Furnace Lockout Codes / Fault Codes

INTEGRATED FURNACE CONTROL - ERROR CODES
On Internal GV error or low TH voltage
Off Check Power
2 Flashes Lockout due to re-tries (flame failure)
3 Flashes Pressure switch fault (open or closed)
4 Flashes Open limit circuit
5 Flashes Flame sensed with no call for heat
6 Flashes Reversed polarity, low voltage or poor ground
7 Flashes Gas valve circuit error
8 Flashes Low flame signal
9 Flashes Open inducer limit
10 Flashes Inducer communication fault
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Article ID: 739
Last updated: 3 Jan, 2024
Revision: 1
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