Potterton profile no CH but hot water ok?

[anns]

Hi. Have Potterton Profile boiler. As of yesterday the boiler has stopped responding to timer/ manual switch on for heating ( no sound of attempting to ignite). However, still switches on, no probs, to heat hot water and will then heat radiators at same time!! Can you please advise?
Thanks.

 

[ChrisR]

The boiler doesn't know what it's being called to come on for, so it'll be a problem with your Motorised Valve.
Sounds like it's sticking.
Bill for £100 - £200, depending...

 

[anns]

Thanks, Chris.