Hi All

I put my radiaors on the other day for the first time this year.

Now the problem is that they stay hot all the time.

Looking at the web i think that i have a fully pumped system?

I have a big tank and a smaller expanaion tank in the loft.

My switch is a Switchmaster SM905. It does once or twice on hot water
and once or twice on CH.

For the last couple of days the CH switch has been in the off position
and the Hot water on continuois (as all summer) yet radiators are
still on.

I think my pump is staying on all the time but will it go on for the
hot water anyway? .

When i put a long metal rod to the pump from my ear, the sound remains
the same when i switch both switches from continuous to off ??.
(noisy).

The last time my heating was on was when i had to get some chap out to
fix it a few months ago as it just would not light (Baxi) . He said it
was clogged up. It did work ok after that.

As a further test i have just put CH continuous. Hot water on off and
then turned room thermostat (downstairs ) on & off. This DID start and
stop the Baxi??.

any ideas please.