testing heated floor?

[happyhero]

My mothers heated floor has stopped working and I think its the controller because it has been playing up for a while, is it ok to connect the supply direct to the load ie to the floor to prove the floor heats up still without the controller. Its a 500watt floor and the element tests out ok.

Any help appreciated.

 

[JohnW2]

My mothers heated floor has stopped working and I think its the controller because it has been playing up for a while, is it ok to connect the supply direct to the load ie to the floor to prove the floor heats up still without the controller. Its a 500watt floor and the element tests out ok.

What do you mean by "the element tests out OK"?

Kind Regards, John

 

[EFLImpudence]

Yes, either wire it through the thermostat or don't leave it on very long.

However, if it tests ok - continuity, correct resistance value and insulation resistance - it will be ok

 

[happyhero]

I dont have figures now but I think it was 125 ohms on multimeter which I calculated at about 460watts assuming exzctly 240volts. Is this correct?

 

[JohnW2]

I dont have figures now but I think it was 125 ohms on multimeter which I calculated at about 460watts assuming exzctly 240volts. Is this correct?

That calculation is correct. I'm slightly surprised the resistance is that high, since it will increase when it heats up. However, it's clearly in the right ball park, so it does seem very probable that the controller is at fault.

Kind Regards, John

 

[Taylortwocities]

Or the probe. What is the resistance of the probe (it will be in Kilo Ohms).
Most controllers will give an error indication if the probe is faulty though.