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
connec!on to chassis ground?
Remove any hea!ng
call
Correct wiring
Check opera!on
YES
Replace IFC
NO
7.1 Fault Code
7.2 Fault Code
DEFINITION:
Internal control board error
Redundant HLO relay closed
when it should not be
Replace IFC
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