On Sat, 5 Jan 2008 05:37:43 -0800 (PST), wrote:

On 5 Jan, 13:07, "Duncan Wood" wrote:
On Sat, 05 Jan 2008 12:26:41 -0000, wrote:
On 5 Jan, 12:05, "Dave Plowman (News)" wrote:
In article
,
wrote:

Hello and Happy New Year!
Just before the Festive Season we had a power cut and our Honeywell
ST699 central heating timer reset itself. I imagine there is an old
NiCad battery in there which has popped its clogs. I am thinking that
this would be a good time to replace this 24 hour timer with a 7 day
timer.

Unless you really want to replace it I'd fit a new battery and spend the
money on a programmable thermostat.

Hmm. I hadn't thought of that. It sounds like it might be a bit too
sophisticated for our requirements, though. I'll bear it in mind for
the future. At the moment, I'm looking to get something done for the
short term in case of the combined effects of a power cut, a cold snap
and us being out - so our pipes don't freeze and burst.

In which case label all the wires before you start & it's easy. So are
programmable thermostats though & they're only £25http://www.screwfix.com/prods/40819/Plumbing/Central-Heating-Controls...http://www.screwfix.com/prods/98300/...ating-Controls...

I have actually just summoned up the courage to flip off the top of
the unit. It looks like the battery is a doddle to change. It appears
that the 3/V150H Ni-MH VARTA Mempac Range battery from the following
website will do the job...

http://www.oddballbattery.co.uk/acat...Batteries.html

...so perhaps, out of laziness, I'll just settle with the new battery
for the moment...

...only trouble is - when I click the 'add to cart' button on the page
I get a blank page in return. Is this a Firefox incompatibility - or
is this supplier defunct?

I use Firefox - but also have IE installed for just such
eventualities. There are many times when such sites (online
purchasing) will not work with Firefox but are fine with IE.