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vaillant 242E, 282E
- Thread starter icecold
- Start date
MOD 2
contact info in your profile please
contact info in your profile please
ok guys after testing central heating, ibleed radiators with air in atic room....the problem seems to happen after using hot water...the hot water get boiling ! and then after turning off the pressure builds and the temp shoot through the roof, if i then turn the central heating on it all starts to cool...but the radiators seem cold at the bottom..is this a flow problem and like you suggested the water pump on its last legs?
icecold said:
Switch the boiler to hot water only & just check after turning off the hot water tap that the burner is actually going out.. The water valve at the bottom of the boiler has a diaphragm with a pin that activates a microswitch on the servo & tells the boiler to ignite... these scale up & seize over the years changed loads on the 282e....
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