Munchkin 80m natural gas boiler F10

halifaxboilier

My munchkin 80m 2008 is repeatedly giving an F10 error. I cleaned the igniter sensor. It didn’t work. Any other ideas about likely causes?

HomerJSmith

@halifaxboilier, I hope you aren't calling that flame rod in your photo clean because it ain't. Clean it with wet & dry sandpaper.

Flame failure doesn't necessarily mean that there isn't any flame as it could be the electrical connection between the rod and the module. You might want to check the four screws that hold the burner tube to the front plate. They must be clean & tight for the circuit to function.

I want add, that on the 80M the brass vent may be pressing on the back of the cabinet and you may not be able to shift the boiler forward. Then drill a hole in the cabinet at the brass vent to allow air to circulate into it.

halifaxboilier

Thanks for the advice. It’s cleaner than it was when I took it out, but clearly more work to do. The condensate pipe could be the problem as it looks like there could be a blockage