U7 fault code Worcester 37 cdi combi

[Inverness]

I put a volt pen to the cable feeding pump and power was on.

 

[Harvest Fields]

I put a volt pen to the cable feeding pump and power was on.

Volt pen will
Light with static or 24v not proven to test just 240v

 

[Inverness]

Alright. I take it with a multimeter you would connect the red and black needles in the pcb where the pump live and netual wires are?

 

[Harvest Fields]

Alright. I take it with a multimeter you would connect the red and black needles in the pcb where the pump live and netual wires are?

Or at the pump If there is space to do so.

 

[sammathias]

The problem is mate, is that AR isn’t a disconnect. It is isolate at user controls. Which means you get called back again at some point as the user has ignored your warning notice and switched it back on themselves and moan that it is broken even when they shouldn’t be using it. I had an agent try and tell me once that I haven’t switched a boiler off, I went mental at them. Why in the hell would I fill out a notice and attach a label and leave the thing running. #ihaveaconscience

Didn't say you disconnect an at risk appliance fella.

 

[Harvest Fields]

Didn't say you disconnect an at risk appliance fella.

I know mate. It wasn’t aimed at you. I was having a rant about the catorgories

 

[Last Plumber]

I put a volt pen to the cable feeding pump and power was on.

Volt pen is no good for testing that type of thing.
Always test you have a Neutral as well as Live.

 

[Inverness]

I replaced the pump head now it works. I think the diverted valve was sticking on the green rubber cover. Strange

 

[Inverness]

I also installed new access panels where the flue passed and inspected the flue joints and clipped on every joint. All good. Cheers

 

[dan_the_plumber]

Get yourself an auto ranging multimeter. If there’s 240v across live and neutral at the pump and the pump is not spinning the the pump is either sticking or is electrically broken.