Recent content by daffouk

I got round to swopping out the heat exchanger over the weekend and it has cured the hot/cold cycling problem: thanks for the tip. I was surprised that the old exchanger wasn't visibly clogged up, nor did much muck come out when I jetted it through, but whatever, the boiler is sorted now -...

Thanks Dan, I have a spare one of those, I'll give it a try. Dave

Hi, My ideal isar boiler has developed a fault where the domestic hot water cycles between hot and tepid, damned annoying when in the shower. My guess is that it is one of the thermistors, but not sure which one. Anyone any thoughts? Dave[code:1][/code:1]

Thank you to all, but especially Dan_Robinson, Master of None & Slugbabydotcom. You have indeed answered my two questions. As you surmise, my current internal PV is knackered, i.e oozes water when the schrader valve is pressed : sorry I thought I intimated that. The boiler is a...

I need to either replace or fit an external pressure vessel to my boiler. As the internal PV is fitted in the rear of the boiler and would require removing it from the wall, I am opting to fit a new one external to the boiler in the return pipe. Two questions: How near to the boiler does...

Thanks for that, I did look on Ebay and a plate HE is only £40 so I could well replace it. Hopefully it will keep the thing going till May/June when I shall take everyone's advice and have it replaced with something better: which will coincide with my extension being finished. I can then...