Heating wont work but water will ?? HELP

[182_blue]

As title, i have a ideal classic boiler with honeywell t6360 thermostat and a honeywell ST699 controller, when i set the heating to constant it doesn't come on, as it doesn't when set to timed, but the light does ?, if i switch the hot water on however then it comes on fine no problems ?

hope someone can help

oh and im new here so hello

 

[Agile]

Motorised valve?

Tony

 

[askjim]

I have a very simliar problem with Ideal Istor. If I set the programmer to auto and put heating on - then I get a small click on programmer but not the normal click but the heating does not come on.

If I set the programmer to auto and put heating and hot water on - then i get normal click and the hot water comes on and when that finishes the heating comes on.

You mentioned motorised valve - is this the diverter valvle?

 

[182_blue]

Motorised valve?

Tony

i think so

 

[bengasman]

silly question maybe, but did you check the roomstat?

 

[182_blue]

silly question maybe, but did you check the roomstat?

i have, whatever i turn it to it doesnt turn the heating on

 

[182_blue]

is there a way of testing the thermostat ?, when turning the knoball i get is a click around 15 ?, is this normal

 

[bruce 1411]

mine clicks if i go below 18 and the pump wont work, it has to be over 18 to circulate the water through the downstairs rads

 

[bengasman]

is there a way of testing the thermostat ?, when turning the knoball i get is a click around 15 ?, is this normal

As the thermostat works on temperature, there is no normal. It appears to be 15 C in your house which is not bad for no heating. If you can be there all day wearing a shirt or maybe a wooly, your stat probably works

 

[182_blue]

ok, well i still cant get the heating to come on ?, any ideas

ps i havce tried a new controller and that didnt cure it

 

[Agile]

Professionals check a system with an electrical test meter !

Not by blindly changing parts!

Tony

 

[MANDATE]

Chances are it's the motorised valve.

Agile said that, so why don't you believe him?

 

[182_blue]

Chances are it's the motorised valve.

Agile said that, so why don't you believe him?

i didnt say i didnt believe him, he just wrote it with a ?, & i thought he was asking if my system had a motorised valve ?? so i wasnt sure (im no plumber so would not have a clue, hence why im asking here)

 

[182_blue]

Professionals check a system with an electrical test meter !

Not by blindly changing parts!

Tony

whose blindly changing parts ?, when helping a neighbour change kitchens i was given there old unit (exactly same as mine) so i tried that on, it did after all just clip on and only took me 1 minute to change it so wasnt a massive job after all

Ps thanks to everyone for there help

 

[182_blue]

anyone ?, is there a way of overriding the motorised valve, i would change the valve but its right behind the boiler and no accessible at all !!!

cheers