Atlantic Delayed Ignition

Boiler ignites with a loud bang or pop (delayed ignition) when starting.

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Incorrect gas pressure, Dirty burner or injectors, Faulty ignition electrode position, Slow-opening gas valve

How to Fix / Troubleshooting

Safety: Delayed ignition can stress the heat exchanger and flue. Turn off the boiler and do not continue to use it if bangs are severe.

Observe safely: From a safe distance, note when the bang occurs (at ignition only or also during running). Do not remove covers while operating.
Do not adjust gas settings: Gas pressure and burner settings must only be adjusted by a certified gas technician.
Professional service: A technician should clean the burner, check ignition electrode gap and position, verify gas pressures, and test the gas valve operation.

Repair Difficulty

Professional Required 5/5

Required Part

Burner Assembly and Gas Valve

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