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Good Morning All,
Further to my previous post about my pump running all night, I've now done some further investigation at 3am this morning and realised it's different than I originally thought.
We have a Glow-worm Ultracom 30hxi boiler that feeds our central heating and hot water. It’s controlled by a Drayton Lifestyle controller. The pump is a Grundfos Type UPS 15-60 130 Part number 5952660 and there are two motorised values sitting below the pump - one for the heating, one for the hot water.
At 3am this morning, the pump was running and by feeling the temperature of the pipes, I established the two valves were set such that the pump was feeding the hot water tank. Downstairs, I checked the boiler and it was running, though the timer/controller said it was all off, which it should have been at that time of the morning.
The other thing I noted is that the boiler temperature gauge was steady at around 70 degrees, then every minute or two the boiler would fire up and the temp would rise to around 90 degrees, the cut out, when the temp would slowly fall to 70 again. Whilst the heating/hot water is working during the day, the temperature display goes between 60 and 80.
I'd confirmed this previously by setting a temperature monitor on the pump for 48 hours and right enough, this showed that the pump temperature was about 45 degrees whilst the heating/hot water was on, but when the heating/hot water went off at night (according to the timer controller), the temperature of the pump slowly rose up to about 55 degrees, by which time the heating kicked in again, i.e. 5am in the morning, when the temp of the pump fell sharply down to 45 degrees again.
This is all piecing together with my other problem posted elsewhere on this forum about our two power showers being extremely hot. This problem started around the same time I noted the pump was running all night. It seems like the boiler is running hotter than normal at night and probably super-heating our water all night.
Please help me understand what's going on here!
Further to my previous post about my pump running all night, I've now done some further investigation at 3am this morning and realised it's different than I originally thought.
We have a Glow-worm Ultracom 30hxi boiler that feeds our central heating and hot water. It’s controlled by a Drayton Lifestyle controller. The pump is a Grundfos Type UPS 15-60 130 Part number 5952660 and there are two motorised values sitting below the pump - one for the heating, one for the hot water.
At 3am this morning, the pump was running and by feeling the temperature of the pipes, I established the two valves were set such that the pump was feeding the hot water tank. Downstairs, I checked the boiler and it was running, though the timer/controller said it was all off, which it should have been at that time of the morning.
The other thing I noted is that the boiler temperature gauge was steady at around 70 degrees, then every minute or two the boiler would fire up and the temp would rise to around 90 degrees, the cut out, when the temp would slowly fall to 70 again. Whilst the heating/hot water is working during the day, the temperature display goes between 60 and 80.
I'd confirmed this previously by setting a temperature monitor on the pump for 48 hours and right enough, this showed that the pump temperature was about 45 degrees whilst the heating/hot water was on, but when the heating/hot water went off at night (according to the timer controller), the temperature of the pump slowly rose up to about 55 degrees, by which time the heating kicked in again, i.e. 5am in the morning, when the temp of the pump fell sharply down to 45 degrees again.
This is all piecing together with my other problem posted elsewhere on this forum about our two power showers being extremely hot. This problem started around the same time I noted the pump was running all night. It seems like the boiler is running hotter than normal at night and probably super-heating our water all night.
Please help me understand what's going on here!
)
