Honeywell Timer Problems

[dpw]

Hello

I have a Honeywell Timer (Model st1000) which has stopped working in the sense that the mechanical timer has stopped moving. If I put the Heating or Hot Water on 24 hours they will operate fine, but I cannot programme it.

Can I just replace the timer, leaving the plate at the back in situ and if so, how do you remove it from the plate it sits on. There are 2 screws at the top that I have loostened, but it wont budge. Is there another honeywell timer (or other) that will fit, or do I have to remove the complete unit?

My wiring skills are not very good - hence wanting to leave the wiring as it is.

Dan

 

[45yearsagasman]

You have to use a bit of force and pull it down from the top. Power off first.
These I believe are made by Horstman. Not sure about the backplate being the latest design( probably not). Horstman programmers may be compatible, but a rewire to a new backplate is simple and instructions are with the new programmer.

 

[spraggo]

Try undoing the screws completelyand removing them, This timer is still available or direct replacements using the same backplate are the, Hortsmann Tiara 425, or the, Channelplus H21XL.