when the heating sytem is runing and you turn the heating sytem off boiler preuser drops right off also when heating is on and you turn hot water tap on there is a screachin noise if you turn the boiler on and off the noise goes away and back to normel heating when the boiler is in DHW only no preasher drop no screaching noise
VOKERA 80SP
- Thread starter ANNALEE
- Start date
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