York Error Code R1: Flame Without Call
Warning: 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.
How to Reset York Code R1
- 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 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.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Flame Sensor | 024-27578-000 | — |
| Gas Valve | — | — |
| Integrated Furnace Control (IFC) Board | — | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| R2 | Pressure Switch Stuck Closed | Warning |
| R3 | Pressure Switch Stuck Open | Warning |
| R4 | High Limit Switch Open | Warning |
| R5 | Rollout Switch Open | Critical |
| R6 | Gas Valve Failure | Critical |
| R7 | Ignition Lockout | Critical |
| R9 | Reversed Polarity | Critical |
| A4 | Improper Thermostat Wiring | Warning |
| AF | Low Flame Current | Critical |