York
Stuck Pressure Switch or Control Board Fault
Inducer motor runs continuously but furnace does not ignite; no specific fault code displayed.
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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.
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Possible Causes
Pressure switch stuck closed, Control board relay stuck, Shorted pressure switch wiring, Faulty inducer relay on board
How to Fix / Troubleshooting
Safety: Turn off power before disconnecting any wires.
- Check pressure switch: Disconnect one wire from the pressure switch. If the inducer stops running after power is restored, the board was seeing a false closed signal. Test the switch with a meter; it should be open at rest.
- Inspect wiring: Look for shorts between pressure switch wires and other low-voltage circuits.
- Board reset: Cycle power to the furnace. If the inducer immediately starts with no call for heat and pressure switch open, the board relay is likely stuck.
- Professional replacement: A stuck inducer relay requires control board replacement with the correct York OEM part.
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Repair Difficulty
Hard
4/5
Required Part
Integrated Furnace Control Board
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