Ingersoll Rand Furnace Error Code E11
IFC has detected internal gas valve relay failure, or 24 VAC sensed at 2nd stage gas valve when it should not…
IFC has detected internal gas valve relay failure, or 24 VAC sensed at 2nd stage gas valve when it should not be. Includes: (1) 1st stage gas valve not energized when it should be, (2) 1st stage gas valve relay stuck closed, (3) 2nd stage gas valve relay stuck closed, (4) 2nd stage gas valve energized when it should not be, (5) 2nd stage gas valve not energized when it should be.
First step from the service manual
Remove any heating call, check if 24 VAC nominal voltage is present between brown lead at gas valve connection to chassis ground.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for E11.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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