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York Error Code R1: Flame Without Call
⚠️ This error indicates the furnace is detecting a flame when it shouldn't be, which could indicate a serious safety issue. Shut the furnace down immediately and call a qualified technician.
How to Fix York Code R1
- Step 1: Turn off the furnace immediately at the breaker. This will stop the flow of gas and prevent further issues.
- Step 2: Ensure all occupants evacuate the building and ventilate the area in case of gas accumulation.
- Step 3: Contact a qualified HVAC technician to inspect the furnace and diagnose the problem. Do not attempt to restart the furnace until it has been professionally inspected and repaired.
What Does York Error Code R1 Mean?
The 'R1' error code on your York furnace, labeled 'Flame Without Call,' means the furnace control board is sensing a flame present in the burner assembly even when there's no active call for heat. In simpler terms, the furnace thinks it's burning gas when it shouldn't be. This is a dangerous situation because it could lead to uncontrolled gas flow, overheating, or carbon monoxide buildup. It's important to address this issue immediately to prevent potential hazards and further damage to your furnace. This error typically forces the furnace to lock out, preventing it from operating until the problem is resolved.
Common Causes of York Code R1
- Faulty flame sensor: The flame sensor may be detecting a flame when none exists, or it may be sending a false signal to the control board.
- Gas valve malfunction: The gas valve may be leaking gas into the burner even when it's supposed to be closed.
- Sticking gas valve relay: The relay on the control board that controls the gas valve may be stuck in the open position, causing the gas valve to open even without a call for heat.
- Control board failure: The furnace control board itself may be malfunctioning and sending incorrect signals to the gas valve.
- Short circuit in wiring: Damaged or frayed wires in the flame sensor circuit or gas valve circuit can cause false signals.
Applicable York Models
Need a Pro to Fix York Code R1?
This error requires immediate attention from a licensed HVAC technician. Do not attempt repair yourself.
Find a Licensed Tech Near You →Replacement Parts for York HVAC System Code R1
Flame Sensor OEM: 024-27578-000
Gas Valve
Integrated Furnace Control (IFC) Board