Warning: Your York furnace has detected a problem with its pressure switch and has shut down as a safety precaution. This requires diagnosis and repair.
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.
How to Reset York Code R2
Turn off the furnace power switch, usually located on or near the unit.
Turn off the circuit breaker for the furnace. Wait 30 seconds.
Restore power at the breaker and flip the furnace switch back on.
Set the thermostat to call for heat. If the error code returns after 2-3 ignition attempts, the fault requires repair.
What does 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.