4 hours ago Ariana Orellana asked ... Code?    |    Lynnie asked ... BT Studio 4500 cordless telephone?    |    David Dawes asked ... How to recoil the starter spring - Champion R484TR?    |    peter high asked ... How can I set time on my Neff oven?    |    Michael asked ... Mountfield empress drive belt?    |    Click here to ask your question

central heating fault?

I have a beta com 30c boiler. When set to DHW it works fine. When set to DHW and CH boiler runs for 20 mins. Everything works fine but when lights on front panel reach 80 boiler cuts out. Any advice.
Steve
Steve X, October 2016