System Diagnosis
Ignition failure (burner failed after retries). The furnace may lock out for safety, blowing only cold air.
Trane | Furnaces
Error Code 2 Flashes
Troubleshooting guide for the Trane Furnaces system fault 2 Flashes.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
Potential Causes & Solutions
- Ensure the gas supply is turned on.
- Clean the flame sensor and verify the igniter is functional.
- After servicing, you may reset the furnace to clear the lockout.
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