No heating without hot water being on

[longboss01]

Hi, I have a Mexico ideal boiler with a honeywell st6400c timer
and v4074 upstairs next to the tank.

I cannot get the heating to come on (boiler to work) without putting the hot water on.

Once the once the hot water is heated up it goes off.


Can any one suggest how i can either get the heating to come on on its own or to keep it on for longer than it takes to heat up the hot water?

cheers

 

[Boilerman2]

Replace the goosed powerhead on your Honeywell V4073A three port valve

 

[longboss01]

Thank you for your reply.

I can get the heating on for a short time if i gently move the leaver towards the manual side.

but this only works for a short time

 

[45yearsagasman]

You've been given the answer to your problem. While you're replacing the head, check that the valve spindle moves freely.

 

[MANDATE]

Either the motor has gone if its not moving the valve, or if it is moving the valve one of the micro switches has gone.
Replacing the head is the best advice

 

[longboss01]

Thank you all for you help and advice....

this is a fab site!

 

[geoff@cetltd]

You've been given the answer to your problem. While you're replacing the head, check that the valve spindle moves freely.

seems like the norfockers and sufockers seem to have a clue - wot they said

 

[slapper]

You've been given the answer to your problem. While you're replacing the head, check that the valve spindle moves freely.

seems like the norfockers and sufockers seem to have a clue - wot they said

Yeah, and they don't need a motherfocker takin the pi$$