Replaced 3 port valve, now no power

Alan Dale · Post by **Alan Dale** » Thu Oct 24, 2024 11:26 am

Hi everybody, I have just replaced a 3 port motorised valve, I replaced the wires one at a time as I took the old ones out but I have no power going to the pump or boiler. I have valves to isolate the water going to the motorised valve and wondered if I could still have an airlock or is it something else. there is resistance on the motorised valve, any help would be appreciated, thanks.

moderator2 · Post by **moderator2** » Thu Oct 24, 2024 11:36 am

Alan Dale, I have started you a new thread and changed the title.

Alan Dale · Post by **Alan Dale** » Thu Oct 24, 2024 1:24 pm

Thanks

Someone-Else · Post by **Someone-Else** » Thu Oct 24, 2024 2:33 pm

Have you actually checked for voltage at the valve? (If so, what with?)

Neelix · Post by **Neelix** » Thu Oct 24, 2024 7:25 pm

Have you tripped a circuit ? Blown a fuse ?

Alan Dale · Post by **Alan Dale** » Fri Oct 25, 2024 9:41 am

Thanks for responding. On the multimeter I have 240v on terminal 8 (orange). 75 v ??? on terminal 7 (grey) 240v on terminal 5 (white). Blue terminal 2, earth terminal 3. I can hear the valve working when I turn the power on. I reset the boiler and have power to it now. Thanks

Alan Dale · Post by **Alan Dale** » Fri Oct 25, 2024 10:17 am

I found the culprit, the plug on the pump had slightly come out, I pushed it back and it all "seems" alright now.