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thanks for responce. changed the thermister but measured the same as the old one and didnt fix it. All the other thermisters measure the same when the boiler is cold. Taken the diverter valve out and works fine not sticking. The boiler does not preheat as it should. It does not recognise...

My ideal he 35 is about 2 years old and seams to be fitted with a sensor which detects the most inappropriate time to stop working. At 1 year old, the pcb went wrong during a cold snap and now its 2, the thing wont give dhw. I was standing in the shower at midnight covered in brick dust when i...

Partscenter swaped PCB. Suspect it had been used before, the packet for jumpers was open, and had biro pen doodles on it. Fitted it and absolutly nothing, not even the pump goes on this time. tempoary terrets :x set in. Any other suggestions? before I ??

anybody have experience of using reconditioned pbc's as sold by "compumerv" on ebay for £45+P&P kERCHING :twisted:

Plumbcentre (Partscentre) supplied part, claimed black one 173 534 superseeded by orange one 174 486. :? Instructions for jumper pins easy if control panel looks like diagram. This one didnt. Number on top line of label has different layout, but it ended in a 2 so went for jumpers on pins...

PCB Problem on Ideal ISAR HE35, 2years old, worked purfict so far. Customer claims wiff of burning previous week then boiler stops alltogether. PCB (black case), slightly melted. Opened the box for a peep, transforner is chared, prinary circuit. Replaced PCB with new orange cased one. Pump...