Right then. I've finally sussed it, it was the water pressure switch after all, despite the fact that there were no visible signs of leakage/corrosion. I've successfully tested it and the system seems to work fine with it taken out of the loop. I'll get that replaced tomorrow hopefully...
Thanks Chris,
I haven't tried the HW limit stat, so I'll nip home at lunchtime to try that.
You also said "Check the high limit thermostat connections aren't wet." - is that the same stat, or is it the additional one - this 'O/H stat' marked at the bottom right hand side...
Thanks for the continuing replies, this is really helping me to check for common problems. I have a (Corgi registered) friend who should be able to take a look at some point today, but he got the winter lurgy at the moment and we've not yet agreed a time so I'm still quite anxious because of...
Thanks for the replies gents. I think I can rule out the thermostat - this seems to be working correctly. I don't know about the pump though. I've had a look with the front panel off the unit and all the indicator LED's for the PCBS look ok and DHW fires up fine.
As for the CH it basically...
Hi folks,
I have an Ideal Response 120 combi boiler (fitted with the additional IDEAL electronic timer) and after 6 or so years of trouble-free service it blew the fuse on it's mains spur late last night, thus tripping the RCD for the whole house. Unfortunately I didn't pinpoint the...