when running the boiler overflow runs water, i have a pressurized system, over 3 floors, Hot water cylinder and what appears to be 2 expansion tanks ( 1 red, 1 white )
bh
5 Reviews, 100% Positive
Get professional in. They will check, advise and repair.
You will have a pressure relief valve that is letting by. Easy to get changed, it also should not cost much
It's either dirty filling look letting by. Or need a new PRV
Either depleted expansion vessel on heating (red) or hot water (white, potable)
Faulty pressure reducing valve, if the hot water is scalding could be faulty thermostat. Or over pressurised heating circuit.
You will have a pressure relief valve that is letting by. Easy to get changed, it also should not cost much
It could be the coil in the Hot Water Cylinder has pin holes in it and pushing CH water into tanks in loft
Sounds like faulty expansion vessel, replace. The red one for heating.
Luke
2 Reviews, 100% Positive
Pressure relief is letting buy or exspanstion you need a sevice