Warmup XSTAT U/F Thermostat - Identify Sensor?

[RealPolitik]

I'm trying to programme an existing Warmup XSTAT underfloor heating thermostat, but I don't know what type of sensor it's getting its temperature reading from - is there any way of finding out without taking things apart, other than trial and error? It's for a bathroom, ceramic tile over ply.

I'm assuming it isn't using an air temp sensor in the wall unit itself, as this is outside the room it controls.

 

[RF Lighting]

What are your options to choose from?

 

[RealPolitik]

Options are: floor sensor; floor and temperature limit sensor; air temperature sensor; air temperature and temperature limit sensor; regulator control (no sensor, just does a set time on and then a set time off repeatedly) and external control (linked to another stat - pretty sure it isn't).

I'm guessing a straightforward floor sensor is the most likely, but it doesn't appear to be staying on until the set temperature is reached.

 

[swampy2]

Has the floor sensor been installed according to instructions?.
Open up stat, should be sensor cable connected to relevant connections(continuity test to see if it works approx 12k/ohms).

Wouldn`t expect to see air temp used, they were for higher temp output heating(conservatory) areas.

http://www.warmup.co.uk/media/pdf/uk_loose-wire-installation-manual.pdf#zoom=100

http://www.warmup.co.uk/media/pdf/UK-Matting-Manual-V0610.pdf#zoom=100

http://www.warmup.co.uk/uk/warmup-product-documentation.phtml

 

[RealPolitik]

Thanks. I'm assuming it was installed properly as it apparently did get hot - seems that it has been reset or messed with. I'll try it on manual rather than timer to see what happens. I don't have a multimeter to hand.

Presumably with a floor sensor, the set temperature is of the floor itself and not an approximation of room temperature?

 

[swampy2]

Thanks. I'm assuming it was installed properly as it apparently did get hot - seems that it has been reset or messed with. I'll try it on manual rather than timer to see what happens. I don't have a multimeter to hand.

Presumably with a floor sensor, the set temperature is of the floor itself and not an approximation of room temperature?

Yes probe sits between the mat element, getting temp from both sides.

 

[Taylortwocities]

If the probe is missing, or faulty then you'll get an error message on the Xstat.

Sounds like a programming option is set wrong.

Do a factory reset (its in the instructions) and go through the set up procedure from scratch.

 

[ericmark]

In the one I fitted the type was not declared. I assume your asking Types- J, K, E, T, N, B, R, or S. The only option is to use one sold by manufacturer.

 

[RealPolitik]

Reset and started again, using the floor sensor setting; now seems to be working (or at least getting warmer when the timer says it should) - thanks.