Fit fused timer for old oil boiler?

[Yelsnew]

Hey guys,

Have an old Oil Myson boiler that works fine, barring the mechanical timer on the front. Timer makes a sound but isn't going around so left using boiler manually.

Any ideas how to fix the timer?

Pic of boiler :

Alternatively could I fit this fused timer where the current fused switch is:
https://www.NoLinkingToThis/p/green...ay-fused-digital-timer-spur-switch-230v/7643g

set the time on that and leave the boiler set to continuous all the time?
Pic of fused switch above boiler:

Just worried the switch cutting the power while boiler is on could cause some kind of problem as when you switch it to off a fan sound runs for a few minutes after.

Any help much appreciated

 

[SimonG]

It will have a post purge unit. Just fit external programmer wired back into boiler.

 

[Yelsnew]

Thanks Si,
something like this: https://www.NoLinkingToThis/p/drayton-lp522-mk4-programmer/20673 ?

 

[Tea-Break]

I have had the same problem with several
customers’ old oil boilers.
In all cases I have fitted a remote Honeywell ST699
all were very pleased especially as the 699 is very easy to us, if a little expensive.
A fairly straightforward job.

 

[SimonG]

I use the 722, but not from there. Too expensive.

 

[Yelsnew]

Much appreciated guys, will update with how I get on