York Error Code R2: Pressure Switch Stuck Closed
How to Fix York Code R2
- Step 1: Check the furnace filter. A severely clogged filter can sometimes restrict airflow enough to affect the pressure switch. Replace it if it's dirty.
- Step 2: Visually inspect the vent pipe outside your home for any obvious obstructions like snow, ice, or debris. Safely clear any blockage you can reach.
- Step 3: Try resetting the furnace by turning off the power at the breaker for a few minutes, then turning it back on. This might clear a temporary error.
- Step 4: If the problem persists after these steps, call a qualified HVAC technician to diagnose and repair the issue.
What Does York Error Code R2 Mean?
The "R2" error code on your York furnace indicates that the pressure switch is stuck in the closed position. This switch is designed to prove that the inducer motor is creating enough suction to safely vent exhaust gases outside your home. When the furnace starts, the inducer motor turns on, creating a vacuum that pulls the pressure switch closed. The control board expects this switch to be open before the inducer starts and close once the inducer is running. If the switch is already closed before the inducer starts, the control board assumes something is wrong and locks out the furnace to prevent potentially dangerous operation. This could mean the switch is faulty, there's a blockage in the venting, or an issue with the inducer motor itself. Because the furnace won't run, you'll have no heat until this is resolved.
Common Causes of York Code R2
- Faulty pressure switch: The switch itself is defective and stuck closed.
- Blocked vent pipe: Obstruction in the vent pipe is causing backpressure, keeping the switch closed.
- Stuck inducer motor: The inducer motor is not starting, so the switch is not opening.
- Wiring issue: Short in the wiring between the pressure switch and the control board.
- Defective control board: The control board is misreading the pressure switch signal.
Applicable York Models
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