WORCESTER 240 COMBI NO CH PLENTY HW

popokaz · 4 Dec 2006

THE PROBLEM IS THAT THERE IS NO WAY TO GET THE CH TO KICK IN. TURN ON THE HOT TAP AND THE BOILER FIRES UP GREAT GUNS.THE PROBLEM STARTED AFTER A POWER CUT AND WHEN THE POWER CAME BACK THE CH DIDN'T. ANY HELP WELCOME THANKS

ChrisR · 4 Dec 2006

Not a common problem. May be a switch on the diverter valve. Would check CH signals arrive at pcb.

tabs · 4 Dec 2006

Could be the CH thermister. I had this a prob a few weeks ago.

Paul Barker · 4 Dec 2006

I am fairly certain this diverter valve rests in the dhw position so it is usually a dv fault. Thats one of the places I would look. Obvious things checked first though, like control signal continuity.

pannierstan · 4 Dec 2006

Paul Barker said:
I am fairly certain this diverter valve rests in the dhw position.

It definatly does not Paul.

If it worked before a power cut then I would suspect external controls such as clock and or roomstat are doing what they should.

ChrisR · 4 Dec 2006

D'OH! yes tabs, CH thermistor - well worth a check!

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WORCESTER 240 COMBI NO CH PLENTY HW

popokaz

ChrisR

tabs

Paul Barker

pannierstan

ChrisR

DIYnot Local

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