Recent content by Doryman

replacement head fitted & now working ok. many thanks guy's.

thanks for the prompt response guy's. I will do the recommended checks this evening. I've already replaced the room stat, problem still exists. shall I still do this check? I can't find a replacement Honeywell ST1507 programmer so suspect that it has been discontinued, the only one I can...

hi. would appreciate some advice on an intermittent problem that's developed on my central heating system over the last week or so. the programmer (honeywell st1507) seems to be working ok however, if I turn up the temperature on the room stat (honeywell t6360B 1028) the boiler doesn't always...