Central heating - timer fault or something else?

[rotty]

Noticed that when we turn the heating on manually we would then notice it had gone back off again so set to continuous and saw this

video has sound


Does this look like a faulty timer or something else tripping it?

Thanks

 

[Gasmk1]

Looks faulty to - me

 

[Harvest Fields]

Definitely doesn’t look right. What make of timer is not? These are normally quite easy to change if I’m honest.

Please like this post if you found it helpful.

 

[rotty]

Its a Honeywell, if it needs replacing I may well go down the smart thermostat route

thanks
[automerge]1569968843[/automerge]
If I wanted to change for another standard type timer are they all pretty compatible as this one looks hard to get
[automerge]1569968965[/automerge]
just seen I can swap it for a st9400a
[automerge]1569969095[/automerge]
last note, it doesn't do it when the heating isn't on