IVT Delayed Ignition

Boiler ignites with a loud bang (hard light)

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/air mixture, Dirty burner, Incorrect electrode gap or position, Low gas pressure

Safety: Hard ignition can damage the boiler and flue. Turn off the boiler and do not continue to operate it.

Technician steps:

Inspect and clean the burner and combustion chamber.
Check and adjust the ignition electrode gap and position according to IVT specifications.
Measure gas inlet and burner pressures and adjust as per manufacturer data.
Verify correct flue installation and air supply.

Professional Required 5/5

Burner Assembly

Check Price on Amazon

We may earn a commission from links on this page.