I have a Potterton Primaf. In the last few days the heating has failed, but if I set the Honeywell timer for both Heating and Water on constant the boiler sparks up and away we go. But only for a few minutes then it cuts out again
Hi, the room thermostat has failed and needs renewal, or the pump is not circulating the water so the boiler gets really hot because no cool water is coming in and the boiler thermostat automatically cuts the gas off.
Frank S
May 2007
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