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Hello The heating and water system for my Ravenheat combi works fine for a while, say 30 minutes before it cuts out and the Red button lights on the fron of the panel. I press the reset button and the boiler works again. When I tried to reduce the CH tempreture setting the boiler works...

Thanks Marios_kin again. I'll be hunting for a diverter valve for RFS100. And good luck with your new boiler - hope you'll have years and years of life out of it. regards

Thanks Mario_kin. I tested the microswitch manually by pressing the tiny button using a long and thin screwdriver. The boiler fired up and I then turned the hot water on whilst keeping the microswitch button manually switched on. But the water stayed cold. So, If the DV is faulty, I need...

Hi If you were a water molecule sitting outside a combi boiler. Could you explain what happens when someone switches the hot water on. This might help me to diagnose why I don't get hot water on my Ravenheat boiler

Thanks Belgraveheating. I susbeceted the flow switch and I am planning to switch it with that for CH. The microswitch works fine only if I manually press the tiny button. Can you explain how the three way valve operates please. Does it have a lever which pushes against the microswitch when water...

Thanks for the response. The boiler is about 3 years old and it has not been recently serviced. If you susbect the flow switch, why does the CH work fine? regards

Hi I have ravenheat with exactly the same symptoms. CH ok, and no hot water. Could you help me identify the parts you are refering to: The Diverter valve: Is this the valve with 5 outputs and about 6 inches long and quite chunky? The Microswitch: Is this the switch connected at the end...

Hi I have ravenheat combi boiler (RSF100). The central heating works fine. However, there is no hot water. When I turn the hot water tap on, nothing happens i.e. the pump does not turn, the fan does not switch on, no ignition, etc.. all I hear is just the flow of water. When on the other hand...