I for my sins have a ravenheat csi 85 combi boiler and it has been a pig for years. Recently the pump has been making lots of noise and last week I woke up to a cold house, but the hot water worked. So a refurbished wilo pump was ordered and I replaced the old one (head unit replacement) the old one had lots of lateral play and also one of the bearings appeared shot. But the heating still didn't work. For those unfamiliar with this boiler there is nothing as nice as error codes!
A Quick check that the hot water still worked, yep, diverter valve pin moves hits micro switch all works. So I buy a CH sensor and a pressure switch, cheap as chips replace them and still no heating, nothing whatsoever, no boiler firing, no pump running (no 240v to the pump) and now the hot water is playing up!!
It is cycling, open tap, burners light, 3 seconds , burners go out, repeat.
Aghhhhh I hate ravenheat.
Only because I can get one for £35 ive ordered a main pcb.
Have I missed anything obvious?
Ive checked that pressure switch is working (with multimeter) and ch over heat sensor, flue fan is running fine
Any suggestions, apart from the obvious bin this junk
Thanks for reading
A Quick check that the hot water still worked, yep, diverter valve pin moves hits micro switch all works. So I buy a CH sensor and a pressure switch, cheap as chips replace them and still no heating, nothing whatsoever, no boiler firing, no pump running (no 240v to the pump) and now the hot water is playing up!!
It is cycling, open tap, burners light, 3 seconds , burners go out, repeat.
Aghhhhh I hate ravenheat.
Only because I can get one for £35 ive ordered a main pcb.
Have I missed anything obvious?
Ive checked that pressure switch is working (with multimeter) and ch over heat sensor, flue fan is running fine
Any suggestions, apart from the obvious bin this junk
Thanks for reading
