2006-10-07 22:41:24 · 7 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
sorry can't help........i have heard of g plan furniture but never y plan heating.
good luck and grab another jumper...its gonna be a cold nite!
2006-10-07 22:49:57 · answer #1 · answered by Wobs 3 · 0⤊ 0⤋
If the pump is working ok, and the timer/programmer is set to CH ON then the only other thing can be a stuck 3 port valve (unlikely) or a faulty motor in the valve. Try moving the lever manually and see if water flows around the ch pipework. Also, maybe more obvious, have you got a room thermostat, maybe someone has turned it down by mistake ? Turn it up and check again.
PS never liked 3 port valves, if you have to replace it, fit two zone valves instead, much more reliable.
Another thought!! The system could be wired to give hot water priority, which means that the CH port cant open untill the hot water is up to temp. If the boiler stat is set to less than the cylinder stat this will never happen! Depends if you have a 'proper' Y plan with a mid position or a a/b type valve.
2006-10-08 07:45:51 · answer #2 · answered by jayktee96 7 · 0⤊ 0⤋
Sorry been drinking but...
I worked with lots and lots of hot water heating systems industrially.
If you have hot water, the boiler is fine and dandy. The problem lies in the hot water trasport.
The easy way is to feel the pipes, follow the hot water, then when it starts to feel cool you know the problem is just ahead.
If there is a solenoid there, check the wiring. Try crossing the electric points so the solenoid should flick open and closed as you touch it. If it doesnt, its probably at fault. If the solenoid is ok then make sure the heaters have been bled of air ( thats probaly the first thing to check actually lol).
Anyway, work systematically, follow the hot water as to how far it is going, you should find the fault.
If you get to a pump, where water should be passing, check the pumpm doesnt need bleeding for air, or unscrew it and check that ptf tape isnt covering the hole.
You can always strip a pump and give it some WD40, 'before' a service kit of new washers and springs etc.
Follow the hot water !!
2006-10-08 06:40:20 · answer #3 · answered by m c 2 · 0⤊ 0⤋
Y plan is pumped for both hot water and heating. Three way valve sends heat to cylinder or radiators as required.
If pump has failed water will still tend to rise to cylinder under gravity feed conditions plus any radiators upstairs. (This assumes you live in a two storey house.)
With hot water cylinder up to temperature, turn room thermostat between minimum and maximum and see if the pump starts.
If it does then the three way walve motor may be faulty and stuck in the hot water position. Push the lever on the tree way valve to the opposite end from where it is. This should give you heating but no hot water.
If it is the three way valve that is faulty and the lever is not moving between heating and hot water, put the lever in the half way position till you can get it fixed.
If you do this, make sure that you turn the boiler thermostat down to minimum because the hot water will go up to the temperature that the boiler is set for. If you leave the boiler thermostat high, you could be scalded by the high temperature of the water from the taps.
2006-10-08 06:17:53 · answer #4 · answered by Anonymous · 0⤊ 0⤋
If your hot water is working, so is the pump. (Besides which, someone suggested dismantling pump and using WD40. As the pumps rely on a film of water to act as the bearing surface, that wouldn't work). Get someone to watch the little lever on the end of the 3-way valve whilst you turn the thermostat up or down. If the lever does not move, it is more than possible the valve motor is faulty. All manufacturers manufacture replacement heads or motors for their valves. Probably best to get a plumber to do it though. If the valve is moving, there is a deeper problem and a plumber would be needed to diagnose it.
2006-10-08 07:50:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I'm no plumber but my first educated guess would be that the pump may have gone. It is this that feeds the water through the radiator system where as, as I understand it, the hot water is usually pressure / gravity fed to the tank.
That being the case the radiators upstairs should still get hot, or at least warm, as they too work off the same principal as the water.
2006-10-08 05:46:35 · answer #6 · answered by Tsh 3 · 0⤊ 0⤋
That is too bad.
2006-10-08 05:42:57 · answer #7 · answered by riettebotha2 4 · 0⤊ 0⤋