I have a Firebird Silverpac condensing boiler

[Caolam]

I have a Firebird Silverpac which is about two years old and it has stopped heating the water. The radiators are fine. I recently lowered the water level in the header tank as it was continuously overflowing. Any advice would be helpful.

 

[SJB060685]

Most likely a fault on the HW electrical side. Requires someone with a multimeter to go through it from start to finish.