hi,my oil boiler fires up by itself even though i hav not pressed the on button in the kitchen it even comes on wen its set to off,it only happends now and again but it annoying and costing any1 got any ideas
If it's an outdoor boiler suchas a Wallstar or Grant or Thermecon make sure the Service Engineer's test switch is in the "Auto" position, if on "Overide", "Test" or "Service" the boiler will fire against the will of any other controls.
as has been said could be a Frost Stat on an outdoor or Garage located boiler, if however no frost statr or Test switch is fitted, I would suspect one of the motorised valves has a sticky auxillary switch and will need a new actuator head
By the way had a fantastic holiday away with the MX5 roof down all the way ,, Yahoo!!!
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