2006-12-04 10:55:15 · 13 answers · asked by wtknsgln1958 1 in Home & Garden ➔ Maintenance & Repairs
Sounds like either your pump needs replacing or it could have jammed.The same thing happened to me.Switch off C/Heating and go up in the loft and hit the pump with a rubber hammer or similar. If the heating hasn't been used for awhile the pump can silt up. Banging it can free it. Always run it every 2 weeks for about 10 mins even during summer to keep it free.
2006-12-04 10:59:18 · answer #1 · answered by Birdman 7 · 0⤊ 0⤋
I think you mean your radiators are hot, but the water in your hot tap runs cold, so...
It sounds like you have a hot storage tank in the cupboard upstairs and have not yet got a combi.
The thermostat element may be broken, it is circular in appearance and about half way up the side of the tank, you may find a plastic cover which you can prise off, check the wires are in place!
Don't touch them they are live!!!! SWITCH THE POWER OFF AT THE MAINS DOWNSTAIRS
It is fairly easy to renew the thermostat as a DIYer, you can drain the tank by closing the inlet tap, and opening a valve and draining it with your garden hose by running out of the front door, (or just run your hot tap 'til it stops)you will then need a large pair of grips or similar depending on the type of tank(sometimes it is cheaper to buy the tools just to jobs like this), turn the thermostat gently but don't let the tank 'twist' or move about, as that may cause other pipes to leak.
The thermostat may not come off easily however as it could well be sealed with a heat resistant sealing compound.
Take the thermostat to a reputable heating shop and they will sell you a replacement for around £10-20.
Fitting is fairly easy, but make sure you get a good seal at the join to the tank. Close the drain down valve and re fill the tank.
If you are not a competent DIYer, then I would say call a plumber, the parts are not expensive but the labour for this will be around £90
If you have a modern combi they do not have pilot lights, and rarely will you expect the water to be cold but the heating to work, so I assume you hav a hot tank in your airing cupboard and it is most common for the thermostat element to go.
It looks like the element in your kettle but larger.
Some tanks have two thermostats, because you may have a quick heat immersion, and in reality two tanks in one. Try to get hot water by running the immersion, this is a good way to assertain it is the thermostat that is faulty!
If in doubt call a professional. I would not advocate touching elecrical cables without taking serious precaution.
Good luck.
2006-12-04 11:05:39 · answer #2 · answered by My name's MUD 5 · 0⤊ 0⤋
Most modern systems (not combi) have a motorised valve or valves, controlled by the time-clock, which allow heated water from the boiler to circulate (a) through the radiators or (b) through a coiled pipe in the hot water tank, to heat up water for your taps or (c) both at once. The motor in the valve may have burned out. Usually, the motor alone (rather than the whole valve) can be replaced, but it's not a job to be attempted by the layman/woman unless you are proficient at DIY and electrics.
2006-12-04 11:42:40 · answer #3 · answered by andrew f 4 · 0⤊ 0⤋
It's usually the other way round. Make absolutely certain that your programmer is switched to Hot Water ON. Make sure that the hot water has not been used already. Your pump must be working to push water around your rads and that means that a valve is turned off or the automatic (electrically operated valve) is stuck.
If this is the case it'll need replacing (expensive). Before calling a plumber, just check the thermostatic switch taped to your copper hot water tank and make sure that someone hasn't turned it right down.-- Good Luck!
2006-12-04 11:13:24 · answer #4 · answered by Davy Crockett 3 · 0⤊ 0⤋
No hot water where?
In the central heating pipework.
Or do you mean there is no hot water on the hot water side.
Could be that the switch is faulty.
Or the pump is faulty.
Try the plumbing equivalent of re-booting.
No luck call a plumber.
Not cheap but warmer water!!
.
2006-12-04 11:01:13 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Either your room thermostat (if you have one has failed) or the hot water rtank thermostat or most probably the valve that changes over the boiler from central heating to hot water.
2006-12-04 11:06:48 · answer #6 · answered by Anonymous · 0⤊ 0⤋
there are two separate systems involved ... the hot water heater is not on because the gas pilot went out and if the central heat is working fine go ahead and check the filter --- if the two are in the same closet then one might be pressuring the other and cause the pilot to go out....if that ain't it then sorry.........
2006-12-04 11:30:24 · answer #7 · answered by XTX 7 · 0⤊ 0⤋
Assuming you have a combi boiler and the DHW is switched to 'on' the diverter valve may be faulty which switches duty from CH to DHW or the flow sensor has failed on the DHW and the boiler is not seeing a flow or the DHW temperature sensor has failed and the boiler thinks the DHW is already hot enough. May help if you post some more details and tell us what the warning/indicator lights are telling you.
2006-12-04 22:39:24 · answer #8 · answered by Daddybear 7 · 0⤊ 0⤋
teh central heating can be on with out the hot water, you need to make sure your boiler is on for the hot water tank
2006-12-04 10:58:25 · answer #9 · answered by Daniel_Son_Bonsai 4 · 0⤊ 0⤋
I suspect that a motorised valve is not working. You can open the valve manually as a temporary fix. On the side of the valve you will see a lever. Move this into a manual slot for now.
2006-12-05 05:25:23 · answer #10 · answered by Anonymous · 0⤊ 0⤋