Hello - we've recently moved house and are having a few issues with the hot water system in the new house.Any advice or suggestions would be very gratefully received!!
By way of background, the central heating is served by a Potterton Suprima condensing boiler (about 4 years old we understand) which is (conveniently?!) located in the garage. We have a traditional central heating system with a hot water cylinder in the airing cupboard which is fed by a cold water tank in the loft. The water pressure is also improved by a Salamander shower pump.
The problem we have is with the temperature of the hot water. It is far too hot, possibly dangerously so. We checked out the thermostat on the side of the hot water cylinder and, sure enough, it was set close to 70 degrees. We reduced this to around 55 degrees but the taps in the bathroom, en suite and kitchen seem unaffected - the water is still crazy-hot even at 3 in the morning (despite the hot water being set to come on between 5.30 and 7am, 6-6.15pm and 7-7.10pm only).
Strangely, though, both showers (which are fed from the same system and not electric showers) are much much cooler than previously (now too cool!!) as is the bath (which has a single mixer tap controlled using the same controls as the shower over - three dials - one to select bath / shower, one for flow and one for temperature).
We then turned the thermostat on the cylinder right down - the numbers only go as low as 50 but I'm guessing it would be somewhere in the region of 35-40. This did reduce the temp of the taps to be bearable, but still very hot - much hotter than I'd expect if the thermostat was working correctly. The shower and bath were, unsurprisingly, however, too cold to be comfortably used.
It seems that the showers and bath (which are served by the pump) are correctly reflecting the temperature of the thermostat on the cylinder, but the taps both upstairs and downstairs (which aren't served by the pump) are providing water which is much hotter. How can this be - assuming it's all coming from the same supply?!!?
The timer seems to be working fine and it doesn't seem to be the case that the hot water is permanently "stuck" on - at 8am this morning I drained out all the hot water and have left it all morning - it hasn't heated up again since and so is still running cold. The Central heating has been on at certain times this morning independently so this isn't affecting matters.
We have an Emerson heater but this is definitely off. The cylinder thermostat is correctly located about a third of the way up the cylinder and in contact with its exterior wall.
Any ideas what might be the issue? This is my first post so please be gentle!!
TIA x
By way of background, the central heating is served by a Potterton Suprima condensing boiler (about 4 years old we understand) which is (conveniently?!) located in the garage. We have a traditional central heating system with a hot water cylinder in the airing cupboard which is fed by a cold water tank in the loft. The water pressure is also improved by a Salamander shower pump.
The problem we have is with the temperature of the hot water. It is far too hot, possibly dangerously so. We checked out the thermostat on the side of the hot water cylinder and, sure enough, it was set close to 70 degrees. We reduced this to around 55 degrees but the taps in the bathroom, en suite and kitchen seem unaffected - the water is still crazy-hot even at 3 in the morning (despite the hot water being set to come on between 5.30 and 7am, 6-6.15pm and 7-7.10pm only).
Strangely, though, both showers (which are fed from the same system and not electric showers) are much much cooler than previously (now too cool!!) as is the bath (which has a single mixer tap controlled using the same controls as the shower over - three dials - one to select bath / shower, one for flow and one for temperature).
We then turned the thermostat on the cylinder right down - the numbers only go as low as 50 but I'm guessing it would be somewhere in the region of 35-40. This did reduce the temp of the taps to be bearable, but still very hot - much hotter than I'd expect if the thermostat was working correctly. The shower and bath were, unsurprisingly, however, too cold to be comfortably used.
It seems that the showers and bath (which are served by the pump) are correctly reflecting the temperature of the thermostat on the cylinder, but the taps both upstairs and downstairs (which aren't served by the pump) are providing water which is much hotter. How can this be - assuming it's all coming from the same supply?!!?
The timer seems to be working fine and it doesn't seem to be the case that the hot water is permanently "stuck" on - at 8am this morning I drained out all the hot water and have left it all morning - it hasn't heated up again since and so is still running cold. The Central heating has been on at certain times this morning independently so this isn't affecting matters.
We have an Emerson heater but this is definitely off. The cylinder thermostat is correctly located about a third of the way up the cylinder and in contact with its exterior wall.
Any ideas what might be the issue? This is my first post so please be gentle!!
TIA x
