hi everyone,

Our boiler (worcester greenslave oil-fired) has developed a fault.
Often when we come back inside after having been away for a few hours,
the boiler will no longer be circulating hot water through the
radiators and the house is cold. There's no sound of the pump running
either, although the usual pilot lights are on as if nothing is
wrong.
We've discovered by accident that if we switch the boiler off, wait
one minute and turn it on again, the problem goes away and the pump
fires up again. But then some hours later, the problem repeats itself.

Any ideas what could be wrong?

thanks,
--

"The BEST Deal is NO DEAL"