What reasons might cause a gas boiler’s burner motor to run, with voltage applied to terminal 16 of the controller, but without ignition, and subsequently result in a fault shutdown?
What reasons might cause a gas boiler’s burner motor to run, with voltage applied to terminal 16 of the controller, but without ignition, and subsequently result in a fault shutdown?
1. The spark electrode gap is too large; adjustment of the electrode spacing is required.
2. Contamination is present; cleaning is necessary.
3. The ignition electrode or circuit is grounded; grounding must be eliminated, and damaged electrodes or cables should be replaced.
4. The ignition transformer has failed, necessitating replacement of the ignition transformer.