"Roger Chapman" wrote in message...
Well you could get pump overrun for a short time but that would be a few
minutes rather than hours so if it was well after the programmer switched
off then it will have to be an intermittent fault.

Well apparently she seemed to think the heating didn't come on at all the
other morning, so I'm thinking faulty electrical switch on the CH actuator.

But as you say, as the fault is intermittent, it may take a while to pin
down.

Thanks to all those who responded.


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Best Wishes
Simon (Dark Angel)
http://www.realmofhorror.co.uk
http://www.facebook.com/pages/Realm-...43030832454357