Applicable Systems
Lochinvar Knight Boiler (SMART SYSTEM Control)
Symptoms
The boiler reports a flame loss. The burner flame was lost during operation.
Possible Causes
- Gas supply interruption or pressure drop
- Flame sensor contamination or degradation
- Combustion air fluctuation
Troubleshooting Steps
- Step 1: Check the gas supply continuity
Supply is stable - Step 2: Clean or replace the flame sensor
Sensor detects flame correctly - Step 3: Verify combustion air stability
Air flow is steady
How to Reset
To reset: Resolve the flame loss, then restart the burner.
Source: Lochinvar Boiler Manual, Lochinvar Corporation
Category: Boiler