Anyone understand central heating?
Discussion
I'm not expecting expert advice but I want to double check that I'm not just being dumb before I call a plumber out.
Last night our central heating didn't fire up when the timer said it should. I messed about with the thermostat and timer, still nothing.
We have a 'Heat only' condensing boiler fitted and as it heats the hot water I thought I would try it. When the hot water is on at the control unit the boiler works, when I swith the heating and hot water on the heating works too.
So my thoughts are that the boiler isn't dead
but something isn't doing it's job properly does anyone have any idea if that something would be a job that needs a gas bloke to sort or just a bit of common sense?
Last night our central heating didn't fire up when the timer said it should. I messed about with the thermostat and timer, still nothing.
We have a 'Heat only' condensing boiler fitted and as it heats the hot water I thought I would try it. When the hot water is on at the control unit the boiler works, when I swith the heating and hot water on the heating works too.
So my thoughts are that the boiler isn't dead
but something isn't doing it's job properly does anyone have any idea if that something would be a job that needs a gas bloke to sort or just a bit of common sense?find the motorised valve
On the side they sometimes have a small lever.
Move the lever and see if the boiler fires up.
The valves are available on the screwfix website and easy to chamnge without touching the plumbing provided you are happy to turn the electric off (maybe onlt to the heating) and swap 4 or 5 wires for new ones.
I did mine earlier this year.
On the side they sometimes have a small lever.
Move the lever and see if the boiler fires up.
The valves are available on the screwfix website and easy to chamnge without touching the plumbing provided you are happy to turn the electric off (maybe onlt to the heating) and swap 4 or 5 wires for new ones.
I did mine earlier this year.
); happened to me and is relatively cheap to replace. I think I paid about £60 5 years ago for a plumber to do it.The above sounds promising thanks everyone, I think it could be the pump though (or more accurately the switch on the pump). I have taken the boxing around the pipework off and can't see any valves that look like the ones I found on screwfix.
The pump has a speed setting and when I knock it onto the middle setting the heating returns to normal, so it looks like a wiring fault or a lime filled pump (most likely considering where I live).
The pump has a speed setting and when I knock it onto the middle setting the heating returns to normal, so it looks like a wiring fault or a lime filled pump (most likely considering where I live).
If you could upload some pictures of your set up I could help point you in the right direction. You could have one of many set-ups, with one of many issues.
Do you have any motorised valves near the pump? How old is the system? Sounds to me like it is behaving like an old gravity set up.
Any valves near the cylinder? How thick is the pipework going to the cylinder?
Do you have any motorised valves near the pump? How old is the system? Sounds to me like it is behaving like an old gravity set up.
Any valves near the cylinder? How thick is the pipework going to the cylinder?
If you could upload some pictures of your set up I could help point you in the right direction. You could have one of many set-ups, with one of many issues.
Do you have any motorised valves near the pump? How old is the system? Sounds to me like it is behaving like an old gravity set up.
Any valves near the cylinder? How thick is the pipework going to the cylinder?
Do you have any motorised valves near the pump? How old is the system? Sounds to me like it is behaving like an old gravity set up.
Any valves near the cylinder? How thick is the pipework going to the cylinder?
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