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Like a lot of people here, I have a combi boiler (Glowworm 30SXi) that's losing pressure over the period of a few hours. Once the pressure is gone, the heating stops and I have to charge it up again.
I had a couple of plumbers in to replace the wifi thermostats and while they were here they charged up the pressure vessel with air but that didn't help. I will get them back in again at some point but I am wondering how best to find out where the fault is myself? I don't fancy paying them to dig up every floorboard in the house until they find a leak ;-) I'd rather narrow down the search a bit. I can't see any sign of a leak anywhere at the moment. Is there a procedure to follow that would help?
Incidentally, if the combi is heating only the hot water, it's fine and doesn't seem to lose pressure; it's only when the central heating is being used.
M
I had a couple of plumbers in to replace the wifi thermostats and while they were here they charged up the pressure vessel with air but that didn't help. I will get them back in again at some point but I am wondering how best to find out where the fault is myself? I don't fancy paying them to dig up every floorboard in the house until they find a leak ;-) I'd rather narrow down the search a bit. I can't see any sign of a leak anywhere at the moment. Is there a procedure to follow that would help?
Incidentally, if the combi is heating only the hot water, it's fine and doesn't seem to lose pressure; it's only when the central heating is being used.
M