De Dietrich Delayed Ignition / Poor Combustion Setup

Boiler ignites with a loud bang or popping noise

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, incorrect electrode gap, slow-opening gas valve

Safety: Delayed ignition can damage the boiler and flue. Gas adjustments must be done by a gas-safe technician.

Do not repeatedly reset: If loud bangs occur, switch off the boiler and do not use it until checked.
Technician tasks: A professional must clean the burner, check and adjust the ignition electrodes, verify gas inlet and burner pressures, and replace the gas valve if necessary.

Professional Required 5/5

Burner / Gas Valve

Check Price on Amazon

We may earn a commission from links on this page.