Boiler Service Southfields Vaillant 831

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Boiler Service Southfields Vaillant 831 Boiler service in Southfields, near Wimbledon. This boiler was installed with a Megnaclean filter, good forward thinking. As you will see from the photos, the Magnatite is prevented on the whole getting into the boiler heat exchanger, which would clog it up leading to breakdowns. Shaling from the heat exchanger is caught in the condensate trap, which needs to be cleaned every year. It is obvious to a Gas Safe Engineer whether a boiler has been looked after or not just by looking at the condensate trap. The bracket on the flue must have fastenings to keep the integrity of the flue, but in this case they were missed off. Another sign to look out for is calcium build up on the Air Vent, this will show that the Expansion Vessel has lost its charge and will need to be recharged. Not all black marks are to do with problems, of the electrode this is just dust that has risen with heat and settle on the ceramic part of the electrode. After the service as per the manufacturer’s instructions, the analyser readings put this boiler in the high 90’s for efficiency. Job done!

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