Hi I was wondering if anyone out there can help me the boiler fires up and the temperature lights go up to 80 then over the next few minutes go back to 30 and stay there and this is what the radiators heat to also the hot water goes hot then cuts out after 30 seconds. there are no fault lights and when left the boiler fires itself back up then goes back this is a repeated sequence. the chart refers to the dhw microswitch but before buying anything i was loping for anyone who has had a similar problem. ps i changed the pcb about 3 years ago this still seems to be fine thanks s
britony combi se fault
- Thread starter stuartuk
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Phone a Gas Safe Registered engineer, this is not a diy job.
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