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Hi I've been having issues for some months with our RD532 boiler. 2 different engineers have been unsuccessful in diagnosing the fault. Here's what happens. When a hot tap is turned on the boiler fires up but very quickly over heats. The temperature gauge on the front the shoots straight up to...

Hi I've been having an ongoing problem with our combo boiler. The hot water only works randomly. Most of the time there is no hot water. The heating seems to work ok. Occasionally a hot water demand from a tap will cause the rads to heat. We also get quite a violent banging from the pipework...