Combi boilers common faults
What is a combi boiler? How do Combi Boilers work? Combi boilers parts and breakdowns:1- Air Pressure Switches 2- Auto Air-Vents (AAVs) 3- Boiler Expansion Vessel4- Boiler Fan 5- Boiler Gas Valve 6- Boiler Printed Circuit Board (PCB) 7- Circulating Pumps 8- Diverter Valve 9- Heat...
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