What factors can cause an overheat condition in a gas boiler’s burner during operation?
What factors can cause an overheat condition in a gas boiler’s burner during operation?
1. High system circulation resistance (due to blockage), verify and check piping valves.
2. Malfunctioning or open circuit of the overheat sensor, confirm the discharge point and adjust or replace the igniter.
3. The pump is not circulating properly or the impeller has become fouled and seized; replace or repair the main controller rather than the entire pump unit.