Recent content by Siddiq675

Just to let you all know that a new PCB cleared the H3 error code but water was stil intermittently going hot and cold. Plate heat exchanger was cleaned out and I now have hot water back. Thanks to all for your help.

The book and fault code does go along with your theory but it's just so many people including twgas have mentioned the diverter valve and DHW plat h/exchanger. I hvae checked and the engineer also checked and there were no leaks whatsoever in the boiler. As the fault is of the...

This has already been replaced by the engineer.i actually saw him change it for a new one.

Thanks for the advice. I have placed my hand on the CH feed pipe out the boiler when system is cold and after turning on hot tap, the pipe does not get hot as some have suggested would happen with a diverter fault. It gets hot when slower...when i run it faster, it almost always brings up...

I have an ideal ISAR he24(yes I know it's terrible and I should get rid but I cannot afford a new boiler arm). The CH is working perfectly and the tap when turned on slow gives out hot water but when I turn the hot tap on faster, the water comes out lukewarm. The boiler still shows d and the...