just fitted replacement pcb slightly different one to before honeywell replacement for a siemens but took my time and connected it as before but i,ve got a 30 degree led flashing
reset it it,s started running all the red temp lights light up quite fast then cuts out pump warning flashes still have no h/w maybe i should of invested the parts money into a new boiler
got the c/h working pressure gauge headed off toward 4 so let the pressure relief off which now wont stop leaking i,ve put some cleaner in the system . it all started with a leak on the 3 way valve all gacked up changed that and the motor valve on top of it as it corroded due to the leak changed the pcb to try and cure the h/w
reset it it,s started running all the red temp lights light up quite fast then cuts out pump warning flashes still have no h/w maybe i should of invested the parts money into a new boiler
your right about the p r v more black death in that boilers been switched off since spring i work away a lot need to get it sorted soon is the plate heat exchanger at the bottom
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