How do I fix a Potterton combi boiler E168 Lock outfault?
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Intermittent hot water fault on my Potterton Performa 28?
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why do I have to pressurising my boiler?
pilot light wont ignite?
Schematic diagram for Potterton 407677 control unit?
My radiators will not go off?
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my boiler power light is flashing?
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Not hot water?