CH Pump Change & No Hot Water

[cts1975]

So big thanks to all those who commented and made suggestions.
It seems that I had spilt water on the 3 way valve whilst removing the pump. It had water inside the casing!
A plumber fitted a new 3 way valve and after starting the boiler and then bleeding the system all is back to normal.

[g7jtk]

👍

[forest07]

Busterbulldog said:

JonV8V said:

He's replaced the pump... fitted it the wrong way? Looks ok to me but a thought.


Or incorrect wiring from the pump missing a wire.

Edited by JonV8V on Monday 23 January 07:47

Whoever did the install fitted the pump pumping down not up so it won't naturally clear itself of air, once it's vented it will be fine but sometimes they can be a pest to vent.
I don't think there is a filling loop as such the round vessel looks to be an air separater of some kind and the pipe going up is probably a combined feed and vent ? Would that be correct op ? You have a small tank in loft ?

There is nothing wrong with the pump direction, there are thousands of installations were the pumps are fitted below the air separator. The pipe work could be a little neater though.