Not trying to sound condescending, but verify that you actually have power at the wires where you connect to the unit. I once had a new double pole breaker actually be bad right out of the box where one leg would not allow power through. Verify you have 120v at each leg and 240v combined at...
This was a very interesting read. Very informative by all who contributed and started this thread. Labradar really went the extra mile with the detailed instructions and photos. I have been contemplating the purchase of this very heater for my shop and now with this great info, I may just do...