fuse blowing next to central heating clock - part two

[pms1cmr]

I mentioned yesterday that my 3A fuse kept blowing, knocking out my central heating. After looking at it a bit more closely yesterday the central heating clock stayed on for hours while the heating was switched off. When I switched the heating on it worked for about an hour before the fuse blows again. The radiators warmed up and I got some hot water.

Is this a sign that everything is working mechanically but something is overheating over that 1/2 hour - hour?

I'm starting to think the pump must be it so I guess I should get a leccy around to check it out

[David Hansen]

On Wed, 29 Aug 2007 02:45:09 -0700 someone who may be [e-mail] wrote this:-

You didn't say what sort of time clock. If it is electronic then it probably has a backup battery. Some mechanical clocks have a spring backup, though these are/were not usually fitted in houses.

Probably not.