Problem with potterton combination boiler

[DRENA]

We have a potterton combi boiler and haven't used it over summer. Went to turn on the boiler and the pilot light/flame stays ignited when heating water, however, when the heating is turned on the flame stays on until the pressure starts rising up, when it reaches around 2 mb of pressure the flame dies and lockout comes on. The millibar pressure is on 1 when cool. Hope you can help. I would be grateful for any advice?

 

[Baxi-Remeha]

what make??, may be overheating......

 

[DRENA]

It is a Potterton Combi 80. It doesn't get to a heat and the boiler is cool to touch the radiators aren't getting hot. It is very noisy before it dies! Any suggestions please????? Would be grateful!

 

[kevplumb]

diverter valve stuck in hw pos

 

[DRENA]

Thanks for your advice Kevplumb. Is this something a DIYer can fix? Can you advise what I need to do to fix. Thanks in advance.

 

[DRENA]

HAS ANYONE GOT THE USER GUIDE for the Potterton Combi 80. Can't seem to find it anywhere on the net? Thanks for your help. Drena

 

[ChrisR]

QUite llikely your pump has stuck. Undo the screwy thing on the end - may be a screw or a hex plug. pull and turn if its the latter. If a screw comes out (dribbles) insert small screwdrive to turn pump. SHould be able to feel it turning when the pump runs.

 

[DRENA]

Hi Chris R

Yes you were right an engineer came out yesterday the pump head needs replacing its not working.

Thank you.

 

[ChrisR]

Go on, tell us how much he charged (& roughly where you are)