New CH and HW progammer required ID please

[saxmanuk]

Hello
My sister in law' programmer has given up. The timing wheel has stopped working however you can still manually turn CH and HW on.
I believe I can make a straight swap with a new one if the backplate is the same? Can some please identify the old programmer please and advise which new one will fit? I have a feeling that the maker is now been taken over by Siemens or Bosch?
Many Thanks for your anticipated replies

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[londonboy]

All programmers with a backplate will fit on there.
Id recommend the Honeywell STC9400C as it uses the same principle as the one you have now.

However on another note, do you have to have the HW on to get CH?

 

[saxmanuk]

Thanks London

The CH and HW can work independantly
however I have the programmer you suggest and the backplate is different i.e. I need a backplate which is square in shape and the pins stick out from the backplate and the female contacts are on the programmer, not the other way around.

Thank again for your reply

 

[londonboy]

Ok great!

Isolate power.

Two small screws underneath, remove programmer, fit new programmer, tighten screws

Let me know how you get on

 

[saxmanuk]

Thanks London

The CH and HW can work independantly
however I have the programmer you suggest and the backplate is different i.e. I need a backplate which is square in shape and the pins stick out from the backplate and the female contacts are on the programmer, not the other way around.

Thank again for your reply

 

[saxmanuk]

Have done some more internet browsing and believe
this one could fit?
Siemens (Landis & Staefa) RWB29 Programmer

 

[londonboy]

Yes it would... but I fitted one of those yesterday and it takes a brain surgeon to work the thing! Really wouldnt recommend it

 

[saxmanuk]

Many thanks
I will order both and see which is better