Furnace intermittently stops mid-cycle; status LED shows 11 flashes repeating; may restart on its own.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Turn off power before accessing the blower compartment. Blower wheels can start unexpectedly if power is on.
Steps to check:
- Inspect blower wheel: Remove the blower access panel. Check for debris, insulation, or objects lodged in the blower wheel. Clean as needed.
- Check blower motor harness: Ensure the multi-pin connector from the ECM or PSC motor to the Luxaire control board is fully seated and free of corrosion.
- Verify free rotation: Spin the blower wheel by hand. It should rotate smoothly without grinding or binding.
- Filter and duct check: Confirm the air filter is clean and ducts are not collapsed, which can overload the motor.
When to call a pro: If the blower fails to start or stops during operation, a technician should test motor amperage, ECM module, and control board outputs. Blower motor replacement requires correct Luxaire motor and balancing.
Repair Difficulty
Required Part
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