control unit for hot water and central heating?

Question

does anyone know how much it would be to get an electrician or plumber out to replace the timer control unit for hot water and central heating, also the downstairs thermostat and three part valve need replacing.

Answer 1

that sounds odd that 3 devices have all gone at the same time

usually you can replace a central heating programmer yourself., most programmers have a common backplate, but to make sure buy one formthe same manufacturer - cost around
£20..50. when you buy it tell the supplier what your old model is and ask for their advice, and make sure you can return it if it doesnt do what you want - tools required probably an electrcial screwdriver (small thin flat blade) & small Phillips or Posidrive screwdrivers)

stas dont tend to go wrong, do an eleectricla check to make sure it has power, alwterntively put the heating on and move the stat dial, if it when it clicks indicates that either the relay has moved - its the relay that either calls for heat or shuts down the system

3 port valves can be replaced quite easily - providing you can drain down the heating system and have the right tools, usually they are attached to the system using large nuts whihc can be opened using adjustable spanners AKA stilson wrenches

however the fact that you state 3 devices arent working would suggest to time its an electrical problem. this could be either a wiring problem (say vermin have damaged the cable) or the programmer is goosed. repalce the programmer first (well second, check any fuses.

Personally Id replace the programmer yourself and see what happenes if its still wrong then call a plumber. But get one you are reccommended there are a heck of a lot of cowboys outhtere (especailly the emergency plumbing companies)

Answer 2

I wouldn't replace any of those parts until I had diagnosed the exact fault. Thermostats rarely fail. The timer could be faulty, easy to check. 3 Port valve, if its a Honeywell, you dont need to change the valve just the head, unless its a VERY old one. £150.00 should cover the lot anyway. There are only about 30% of electricians that I have come across that are good with CH wiring, they always seem to get into a real mess. If you have to replace the 3 port valve, look into fitting two zone valves instead, 3 port valves nearly always are troublesome.

Answer 3

The parts should cost about £60 in all. If you are quoted a lot more than this get them from Screwfix.com then ask a plumber to come and fit them.

The total labour should be about 1.5 hours, provided everything is accessable and not siezed up.

Thus whole cost of job should be about £150-200.

Hope this helps.

Answer 4

Did he have a leak contained in the water coil contained in the immersion tank? this would enable boiler water to leak into your warm water. can not imagine of the different reason, what he did is maximum inefficient. Is there a "Drayton" or similar controller contained in the area of the immersion tank? If no longer he has taken the lot away. Any danger of asking him?

Answer 5

I am a little out of touch these days but I would guess at around £350

Answer 6

depends where you are.