Tips to troubleshoot my 240V garage heater?

[tjlutz]

Got the lines checked out. 117 and 120 v respectively. So what now?

 

[tjlutz]

Got the lines checked out. 117 and 120 v respectively. So what now?

Got the lines coming out of the thermostat, 113 and 114 v

 

[tjlutz]

Got the lines coming out of the thermostat, 113 and 114 v

My wiring is line 1 (black) to black 1. Line 2 (red) to red. Black to black and red to red to heater. Works but half speed/power I think. I've seen others on YouTube that feel the heat from 10' away. I don't feel the heat from 3' away.

 

[heat seeker]

You need to check the voltage across the two hot wires going to the heater. If you have 220 (with the thermostat closed), the problem is likely the heater itself.

 

[tjlutz]

I tested the wires out of the thermostat and they were 113 and 114 v.

 

[heat seeker]

Is that each one to ground? How about one to the other? That's the real test.