Potterton 80el Overheat stat keeps tripping

[Sandeep89]

Hi Guys,

Have a customer who has a Potterton 80el and when running heating after a few hours the red overheat stat button at the bottom of the boiler pushes out and boiler wont fire up. Customer has said if they reset the button they heating could work for a few hours or for the whole day before it trips out again.

Have not worked much on these boilers, could it be a faulty overheat stat or would I been looking at a faulty component, pcb?

Any help would be appreciated.

Thanks

Sandeep

 

[Deleted member 120897]

Start simple: check for weak pump, failing zone valve, check the overheat stat. I could be wrong, as I don’t work on these.

 

[king of pipes]

This may help bud check the pump overun stat