Ok, thank you everyone, sussed it, hot water back.
When I fitted the new pump which was just a general cheap pump as an emergency purchase from the local merchants, he quoted £180 for a Wilko and it wasn't in stock so sold me a £55 pump.
I noted the bottom isolator turned less than the other...
Thanks, I see yes, with water squirting onto PCB. Yes I changed the DHW pump. Just with a replacement from the local plumbers merchant not a grant pump.
As said the old one wouldn't run on the bench with direct mains.
Only thing noted bottom pump isolator valve didn't turn as many times as the...
Thanks, yes not good research even had my part number but it was got a grant v,3, but thank you, this was helpful..
Any ideas on the fault? and how does venting cause PCB failure, thought switches and sensors controlled dry contacts which powered the pumps?
Venting just removing air?
Any...
Hi, pump was dead, I took it out tested on bench with mains. Replaced with new which is now running, I also bleed it through centre screw. For my info is the pump after the heat exchanger as that is stone cold?
Regards
Steve
Dear Comrades, this forum has helped me many times before as a browser but now I need to post, fingers crossed someone kind will share their knowledge.
I am not too bad on plumbing and installed my Grant 26e myself about 7 years ago and apart from the odd service I have always been able to...