Trane Error Code 5: Flame Sensed With Gas Off
Warning: Your Trane furnace has detected a gas leak safety hazard. Turn off the gas supply and call a professional immediately.
How to Fix Trane Code 5
- Step 1: Turn off the gas supply valve located near your furnace.
- Step 2: Do not attempt to operate the furnace until a professional has inspected and repaired the issue.
- Step 3: Call a licensed HVAC technician immediately to diagnose and fix the problem.
How to Reset Trane Code 5
- 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 5 mean?
The 'Flame Sensed With Gas Off' error code on your Trane furnace indicates that the gas valve is closed, but the flame sensor still detects a flame. This could be due to a gas leak or a malfunctioning gas valve. It's crucial to address this issue promptly to ensure your safety.
Affected Models
Recall Notices
Trane/American Standard Gas-Electric Packaged Units Recalled Due to Fire Hazard
25-XXX
Fuel gas valve can open unexpectedly, creating gas leak and fire hazard. Stop using heating mode.
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Gas Valve | Trane 10000-0001 | — |
| Flame Sensor | Trane 10000-0002 | — |
| Gas Pressure Regulator | — | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| STEADY-ON | Control Board Problem | Warning |
| STEADY-OFF | No Power | Warning |
| SLOW-FLASH | Normal Operation (Standby) | Warning |
| FAST-FLASH | Active Call for Heat | Warning |
| 2 | System Lockout | Warning |
| 3 | Pressure Switch Error | Warning |
| 4 | Open Limit Switch | Warning |
| 6 | Polarity/Grounding Error | Warning |
| 7 | Gas Valve Circuit Error | Warning |
| 8 | Low Flame Signal | Warning |