upgrading honeywell programmer

[docka]

Hi, first post so go easy on me, have enjoyed lurking so far...
i need to fix/replace my aging parents CH/HW Honeywell programmer as it keeps resetting it's clock and messing up the on/off times. Can i replace it with a more intelligent one without changing the wiring?
Going to see them today weather permitting so i'll get current programmer model no etc.
Cheers.

 

[londonboy]

Most of them fit on an industry standard back plate, so you can change the programmer without altering the wiring.
Find the honeywell model and post back!

 

[docka]

Sorry for delay, it's an ST699B. Anyone have any idea if i can directly replace it for a better programmer without altering the backplate and wiring etc? Cheers

 

[gas4you]

These, if I remember correctly, have a unique backplate.

It may just need a new battery, available from HERE

These are also still available new, but quite expensive, sadly

 

[docka]

Ah, yes a faulty battery would explain why it kept losing it's memory after the circuit was tripped by a dodgy washing machine. I will try this before splashing out on a new unit, many thanks, gas4you!