worcester240

[marlon]

worcester 240 will not turn off when heating is switched on,rads will continue to run until I switch power off at spur, thermostat has been checked and passed ok.Have not got this problem when running hot water for shower etc. Thank's.[/img]

 

[chrishutt]

You need to have some fault finding carried out, principally looking at electrical side of controls and boiler. Unless you feel confident about trying this yourself (good basic knowledge of electricity needed) you must get in a good heating engineer.

 

[ChrisR]

Flow switch stuck, possibly.

 

[kevplumb]

anyboby got the bumph for the 240
i seem to have everything else

 

[chrishutt]

I've got the MI for the 240 RSF, but only in paper form. And I haven't got a scanner, so I can only look something specific up for you.

 

[kevplumb]

feel free chris

owt for nowt

i cant find them

 

[ollski]

not sure I get the problem, when you say the rads continue to run when the heating is on do you mean they are getting too hot or they are continuing to heat after the programmer should turn them off?

 

[marlon]

not sure I get the problem, when you say the rads continue to run when the heating is on do you mean they are getting too hot or they are continuing to heat after the programmer should turn them off?

[the rads continue to heat after the prog.should have turned them off

 

[ollski]

Is it an external programmer?, do you have a mulimeter?. My first check would be to make sure the programmer switch is breaking when its turned off.

 

[kjy gas services]

most likely cause to be the pump over run stat has stuck in the demand position...have seen this problem 3 times before