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Mend Worcester Bosch 28cdi Combi Boiler Central Heating Hot Water

How can I fix my Worcester Bosch Combi boiler?

I have a 28cdi and when you run the hot tap the water gets hotter and hotter until the pilot cuts out. After a short while it fires up again and this repeats.Also this happens on central heating demand and radiators don't have a chance to get warm. It looks like a circulation problem but the pump seems ok.Where should I look?

Den
May 2009
Worcester BoschWorcester Bosch 28cdiHeating, Home Heating SystemsCombi Boiler Central Heating Hot Water
Check the Auto Air Vent on top of the Boiler is working, the black plastic screw should be loose by about 2 turns, the AAV may need repalcing

www.elanar.co.uk
May 2009

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