Flexwatt heating issue

Connections Soldered or Clips

Clips.

That can be your problem right there. Clips suck and can cause loose connections causing un even heating

I have the same problem with my 4" flexwatt from the same place. I have a 2 degree difference on each shelf. I use the VE200 thermostat. Not sure what to do.:confused:

If your using clips, redo the connections and solder rather clips.

Could be the clips, if you don't have a solderer you can try using electrical tape, even that is more secure than the clips.

Make sure you have a really good connection on your clips.