Why is my timer stopping at 4am?

[Jimmy_J_Bob]

Boiler is an ideal esprit eco 24

The mechanical timer will stop automatically, for e.g. at 11pm i will set it for 7am the next day but it will freeze/stop at 4am

When i turn it back to the correct time it will start working again but only for a few hours

What is the issue?

 

[Deleted member 120897]

Sounds like the timer is kaput.