Hi folks,
Just wondering - what sort of pressure should be in the expansion tank vessel for a combi boiler?
It's an old worcester heatslave combi boiler, wall mounted, closed system, 11 radiators all on ground floor (bungalow).
I'll be draining the system before measuring the expansion vessel pressure - just wondering what ballpark it's pressure should be?
Talking of pressure - what sort of pressure should the system be filled up to when cold? Am I right in saying about 0.7bar?
I'm going to change the pump on this system because the thermal cutout in the combi keeps tripping. I assume a faulty pump sounds like the most likely cause of the thermal trip going? I've checked that there is no air in the system. By the way the circulating pump in this system is over 6 years old - is that sort of service life fairly typical for a pump?
Any advice is much appreciated!
Just wondering - what sort of pressure should be in the expansion tank vessel for a combi boiler?
It's an old worcester heatslave combi boiler, wall mounted, closed system, 11 radiators all on ground floor (bungalow).
I'll be draining the system before measuring the expansion vessel pressure - just wondering what ballpark it's pressure should be?
Talking of pressure - what sort of pressure should the system be filled up to when cold? Am I right in saying about 0.7bar?
I'm going to change the pump on this system because the thermal cutout in the combi keeps tripping. I assume a faulty pump sounds like the most likely cause of the thermal trip going? I've checked that there is no air in the system. By the way the circulating pump in this system is over 6 years old - is that sort of service life fairly typical for a pump?
Any advice is much appreciated!