Well not exactly on its own....Sometimes if you turn the hot water tap on/off in the kitchen or bathroom, there will be a short (0.5 sec) burst of the shower pump coming into life. No water is expelled from the shower but the pump makes a noise as if the shower has been turned on momentarily.
I'm guessing its some sort of airlock in the hot water system but how do I resolve it?
It's wierd that it seems to come and go. Will be okay for a few days then will do it for a few days before stopping again.
I've tried to backflush the hot water supply from the mains and that appears to fix it (for a while) but nothing permanent. Is there some sort of valve I can fit before the pump to stabilise the pressure after it so it isnt affected by the other hot taps being used?
Any help appreciated.
I'm guessing its some sort of airlock in the hot water system but how do I resolve it?
It's wierd that it seems to come and go. Will be okay for a few days then will do it for a few days before stopping again.
I've tried to backflush the hot water supply from the mains and that appears to fix it (for a while) but nothing permanent. Is there some sort of valve I can fit before the pump to stabilise the pressure after it so it isnt affected by the other hot taps being used?
Any help appreciated.