Model reference
Trane DD2D140A9602A
Furnace
1 document15 error codes1 service mode
Available documentation
Service Manual
- Service Facts - Gas Furnace – Induced Draft – Two Stage Heat32 pg
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Error codes (15)
CodeMeaning
1Flame sensed when no flame should be present.10Gas valve energized without call for heat.11Primary limit has been open for more than 5 minutes, check blower.12Ignitor relay failure internal in board2Pressure switch is stuck closed.31st stage pressure switch is stuck open (not closing).3 Double2nd stage pressure switch open4Open primary limit, flame roll out or reverse flow switch.5Open roll out switch or open low voltage fuse.61st stage pressure switch has opened 5 times within one cycle7System lockout Retry8System lockout Recycle9Reverse polarity or poor grounding.RapidTwinning Error, incorrect 24V Phasing.Solid OnGas valve relay failure internal in boardService modes (1)
- Fault Retrieval / LED Diagnostic ModeObserve the status and fault LEDs on the IFC (Integrated Furnace Control) board
Full entry steps, exit procedures, and test sequences are available in Max.
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