240 Heated Schluter cable problem

[Gibbshomes]

I bought a 240 schluter heated cable, did all the required test. everything passed. Tried 2 new thermostats. The heated cable has a hard time getting past 26-28 degrees Celsius. And its constantly fluctuating in temperature even though its set to 29 permanently.

The electrician i used has it hooked up to 14/2 cable and to a single 15amp breaker. Is this the right wire and/or breaker? Could this be the reason the cable wont fully heat up? also if its wrong, is it dangerous? and whats the solution?

thanks

 

[telectrix]

could be that the 14/2 is too small, causing volt drop . you need to measure the voltage at the heater terminals under load.

 

[Megawatt]

could be that the 14/2 is too small, causing volt drop . you need to measure the voltage at the heater terminals under load.

I have to agree with @telectrix, you need an amp probe to see exactly what amperage you are pulling. Good luck