oil central heating

[johnny15]

my hot water is working but I cannot get the heating to work , it is a 20/25 heatslave combi boiler

 

[Agile]

Its very difficult to sugggest anything when you dont even tell us if its a combi boiler or conventional system.

If the latter then suspect a control system fault.

Tony

 

[johnny15]

I did say it was a heatslave 20/25 COMBI boiler

 

[Agile]

Sorry, I had only read the heading and responded before the last two words!

The obvious thing to check is the room stat and heating time settings. More likely to be a user control miss setting !

If you convince yourself its correctly set then its just possible the boiler diverter valve is failed but that is VERY unusal to give DHW and not CH !

You may need to call a boiler expert if it really has failed.

Tony

 

[wilhelm]

see if little lever on divertor valve moves when ch selected.....turn down dhw stat on boiler. it might fust be synchon motor in valve. awkward on a honeywell and a tw £t on a drayton za valve.......which you may have.

 

[oilman]

...................
If you convince yourself its correctly set then its just possible the boiler diverter valve is failed but that is VERY unusal to give DHW and not HW !

You may need to call a boiler expert if it really has failed.

Tony

And preferably one who has heard of CH and can recall it even after an obvious drink or 2

 

[oilman]

see if little lever on divertor valve moves when ch selected.....turn down dhw stat on boiler. it might fust be synchon motor in valve. awkward on a honeywell and a tw £t on a drayton za valve.......which you may have.

Ah, heres one that knows about CH, but goes to pieces at the mention of Honeywell

 

[Agile]

Thanks for pointing out my HW to CH transformation!

Can you tell him what the diverter in the boiler looks like?

I think he imagines its a combi on a conventional system! It just might be but thats unlikely.

I never have any drinks before 8 pm or the last boiler whichever is later!

Tony

 

[johnny15]

it is a honeywell one and it did not move when I tried it

 

[Agile]

Seized after a summer of inactivity?

 

[johnny15]

thats what it looks like it wasnt on atall after all that great weather we had in the summer lol

 

[johnny15]

so what do I do buy another one and fit it?

 

[wilhelm]

power off
struggle for access...
whip off silver cover
look how motor is attached
drop tiny screw
screw lost......
fit new motor
cover on
power up.


motor.....

 

[johnny15]

Thank you, I think i've got a screw loose at the moment. now all I have to do is buy one lol