Trane *UH2B080A9V3VA - Field Wiring Diagram; 2 Stage Heating;2 Stage Cooling Wiring; Humidistat Hookup Instructions

40
Service Facts
X343070P08
DEFINITION: External Gas
Valve Circuit Error (24 volts is
present when it should not be
present)
Is 24 VAC nominal voltage
present between Red lead at gas
valve connection to chassis
ground?
Turn Comfort
Control to “OFF”
position
Correct wiring
Check operation
YES
Replace IFC
NO
7 Flash Fault LED