just an update
the pressure vessel has been maintaining it's charge but the boiler pressure is still rising and activating the prv not all the time but every single time it has done it it's been when the hot water taps been running , does this point to any part in particular ?
i have replaced the pump now and had to remove and clean the dhw pressure sensor as it was gunked up and was saying the system had low pressure when it didn't , a good clean has sorted that though and the new pump has made the boiler run a lot quieter too
just this problem with the boiler pressure increasing too much when running hot water to sort
any ideas ?
the pressure vessel has been maintaining it's charge but the boiler pressure is still rising and activating the prv not all the time but every single time it has done it it's been when the hot water taps been running , does this point to any part in particular ?
i have replaced the pump now and had to remove and clean the dhw pressure sensor as it was gunked up and was saying the system had low pressure when it didn't , a good clean has sorted that though and the new pump has made the boiler run a lot quieter too
just this problem with the boiler pressure increasing too much when running hot water to sort
any ideas ?