Replacing a timer, Vaillant Turbomax VUW 242 E/282 E

[ZZZZZZZZ]

Got a boiler that's either one of these. Belongs to the Shah of Landlordistan. Fires up OK, HW OK, but CH not working intermittently. This is clearly because the ancient mechanical (electromechanical? we hope) timer doesn't work - it's not ticking.

Quick google shows various things under a similar brand name and model number, none of which look like anything that might fit this installation. Vaillant's Web site is worse than useless. Does anyone know the stock number? If anyone has the buke, that would be handy as well.

I'd also be interested in deploying an RF thermostat (funny long thin building) and discussing it with the Shah later. Any clue?

 

[namsag]

Is the clock built into the boiler control panel or is it on the wall

 

[ZZZZZZZZ]

It's mounted directly on the front panel of the boiler. I think it's the type that plugs in; the boiler just doesn't look anything like the ones I can see on the market.

 

[namsag]

The digital one that fits in control panel is vaillant part number 300881 soz don`t know mechanical part number

 

[ZZZZZZZZ]

Is the digital one compatible with this boiler?

 

[namsag]

YEP it just plugs into same socket that mechanical one uses

 

[ZZZZZZZZ]

Thanks a lot. So essentially I just need to remove the screw that holds the black plastic front panel in place, lower it on its hinges, pull out the dead timer and substitute the new one?

Also, where are the connections for the external controls? (Thinking thermostat here.)

 

[namsag]

Yep.

Connections for the stat are in were the wire from fused spur goes in