Overheating boiler

[legin]

Hi first time post so I hope I'm not repeating something.My hot water is coming out of the taps at 90 degrees with the tank stat set at 50! I changed the stat for a new one but does not seam to have solved the problem.There is no electrical current going to the stat although there is current at the junction where stat,2 way valve and mains,I think, join up.What could be wrong? System is fired from a Baxi Bermuda back boiler.Many thanks.

 

[seco services]

There is no electrical current going to the stat although there is current at the junction where stat,2 way valve and mains,I think, join up.

do what ?

what is it a y, s plan system ?

 

[legin]

I'm not sure of what type of plan it is but I think it is a pumped system not gravity.As I said there is no current at the tank stat.There are 5 wires running from the 2 way valve,3 from the stat and 2 from the mains.From the mains the red wire goes to the brown from the stat and the black goes to the blue wire from the valve.The rest of the wires from the valve are thus:White to earth from the stat,Yellow to blue from stat,Earth on its own terminal and a red wire cut short and not connected.Any ideas,thanks again.

 

[namsag]

motorised valve is passing allowing heated water to pass to cylinder coil when heating is on

 

[twgas]

Is your immersion heater turned on?

 

[legin]

Is your immersion heater turned on?

No turned off.

 

[D_Hailsham]

Which type of valve do you have - left pic or right? If left pic, make and model no.

View media item 5946 View media item 11762

 

[legin]

motorised valve is passing allowing heated water to pass to cylinder coil when heating is on

Yes that was the problem. A new sunvic 2 way valve fitted,the old one was stuck half way. Thanks for the advice.

 

[gas_man_gaz]

motorised valve is passing allowing heated water to pass to cylinder coil when heating is on

Yes that was the problem. A new sunvic 2 way valve fitted,the old one was stuck half way. Thanks for the advice.

you'll prob get use to faults with the motorised valve