Microcombi 23MFFI

[Deelta]

Hi, a problem with the Microcombi 23 MFFI, starts ok on CH but it goes to lock out after minuts, reset and the same, on HW the problem the same but I noticed the flame up and down and the clicking noise (ignition) on and off and then lock out, is it APS?

 

[Agile]

I would want a more detailed description of the problem with the exact times involved before even guessing what the problem is.

So far I am limited to guessing that it might be a CORGi problem

But temperature measurements within the boiler would also be useful.

Tony

 

[ChrisR]

Could be all sorts. Pump would be worth checking, if the boiler is getting hot.

 

[Deelta]

Could be all sorts. Pump would be worth checking, if the boiler is getting hot.

checked the pump ok, the spark doesn't stop at all in both HW & CH the primary and water sensors measure ok about 12K cold and 3K hot, what do you think