I have a new gas CH/Hot water(tank)system.When the system is hot,45 secs before it turns off,there is a whoosh in the boiler,the LED changes from displaying temperature to pressure,and the boiler becomes noisey.Is this normal?All my radiators have thermostatic vaves,but a towel rail is always open.Help!
end cycle noise
- Thread starter vasomotor
- Start date
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