Anyone seen this old electric UFH controller before?

[Alan Ambrose]

This needs replacing. Curiously is doesn't appear to use a thermistor for floor temperature sensing. Anyone seen that before - I haven't? The floor must be self-regulating temperature-wise?

[ProDave]

Can you remove the front and post any pictures of the inside in particular the connections?

 

If they don't use a floor probe they usually just work on a room thermostat, is that what the (remains of) the round dial was?

[Alan Ambrose]

Yep, of course. BTW it does seem to work OK but the cover is a bit broken. Seems there an NTC connection available but not connected.

 

 

[Alan Ambrose]

>>> thermostat

 

Oh yeah, thought it was a timer, but the blue and red pips suggest temperature and it must have rotated the little 10K pot underneath.

[ProDave]

Try any of these https://www.screwfix.com/c/heating-plumbing/underfloor-heating-thermostats/cat16430006

 

But first check the specs to make sure they will work without a floor probe.

[Alan Ambrose]

Thanks for that, much appreciated.