X
xdavid
Excell 80SP, about 12 years old?
Central heating is good but hot water has been getting gradually cooler over past 6 months or so. At first I just ran the water slower but now it's having to run really slow! At first I thought it was just the winter colder water but, thinking back, it has definitely been getting colder and maybe winter has just made it more noticeable.
I'm thinking maybe Domestic Hot Water Heat Exchanger needs replaced? Or can I 'clean' this first to see if it makes a difference? I've got the service manual so don't mind taking this out to have a look.
Only other thing noticeable is that when the hot water tap is turned off, I get a 'whooshing' noise from the boiler. I'm getting to the paranoid stage so that may be normal and always happened
Oh... and the pressure gauge drops to zero quite quickly when boiler is off, but returns to normal when running. I'm presuming the expansion vessel needs re-pressurised but just mentioning it here for 'completeness'.
Thanks in advance for any comments!
Central heating is good but hot water has been getting gradually cooler over past 6 months or so. At first I just ran the water slower but now it's having to run really slow! At first I thought it was just the winter colder water but, thinking back, it has definitely been getting colder and maybe winter has just made it more noticeable.
I'm thinking maybe Domestic Hot Water Heat Exchanger needs replaced? Or can I 'clean' this first to see if it makes a difference? I've got the service manual so don't mind taking this out to have a look.
Only other thing noticeable is that when the hot water tap is turned off, I get a 'whooshing' noise from the boiler. I'm getting to the paranoid stage so that may be normal and always happened
Oh... and the pressure gauge drops to zero quite quickly when boiler is off, but returns to normal when running. I'm presuming the expansion vessel needs re-pressurised but just mentioning it here for 'completeness'.
Thanks in advance for any comments!