Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E6.3: Igniter relay or open igniter fault
The Trane S9X/S9B integrated furnace control table identifies E6.3 as an igniter relay failure or open igniter condition.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E7.1: Gas valve energized when it should be off
The Trane S9X/S9B integrated furnace control table identifies E7.1 when the gas valve is energized without the proper request.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E08: Low flame current
The Trane S9X/S9B integrated furnace control table identifies E08 as low flame current that is still strong enough to allow operation.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E11: Internal gas valve relay or valve error
The Trane S9X/S9B integrated furnace control table identifies E11 as a gas valve relay or gas-valve energizing error.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E12: Open low-voltage fuse
The Trane S9X/S9B integrated furnace control table identifies E12 as an open fuse condition.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E3.1: Shorted first-stage pressure switch
The Trane S9X/S9B integrated furnace control table identifies E3.1 as a shorted first-stage pressure switch condition.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E3.2: Open first-stage pressure switch
The Trane S9X/S9B integrated furnace control table identifies E3.2 as an open first-stage pressure switch condition.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E04: Open limit circuit
The Trane S9X/S9B integrated furnace control table identifies E04 as an open limit, rollout, or reverse-airflow safety circuit.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E05: Flame detected when it should not be present
The Trane S9X/S9B integrated furnace control table identifies E05 when flame is detected while it should not be present.
Trane S9B1 92 Single-Stage Builder-Grade Gas Furnace E6.1: Reversed voltage polarity
The Trane S9X/S9B integrated furnace control table identifies E6.1 as reversed voltage polarity.