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After many years of excellent service the keypad (Mk 1) became unreliable and so I changed it for the newer (Mk2) version, with larger buttons. The change went well until I took it out of engineering mode and since then the tamper light has been illuminated. I had tried to remove and replace the...

How easy (difficult ?) is it to change the diverter valve on a Ravenheat RSF 820/20 boiler ? What would be a reasonable price for a plumber to charge and what would BG charge (estimates) ? thank you

Suddenly the hot water output on my Ravenheat 820/20 has stopped. When drawing hot water the main burners do not ignite. However if I turn up the room thermostat so that it turns on the central heating the main burners ignite and I can get plenty of hot water. The radiators are cold for as long...

Hi, I have a 10 yr old Ravenheat 820/20 and it has had this problem for a few years now. In the summer, when the Central heating is turned off, the hot water supply is fantastic. As soon as the colder weather approaches and the central heating is turned on the hot water supply temperature...

Hi everyone. Seems like a good forum. I have a 6 yr old Ravenheat 820/20 which has a strange problem. The central heating is fantastic (close loop) with scalding hot radiators. However my thermostatic shower is unreliable. In the summer, when the central heating is OFF its fantastic. Lots...