I'm surprised that the ground (green) and neutral (white) are connected to the same lug since you do have a four-wire system. Nonetheless, that isn't causing your problem. Since the drum spins, you have power to the unit (at least one of the two live wires is connected). Since it's new, it should be under warranty, contact whoever installed it and tell them to come and fix it. It's possible that the heater element is faulty.
If you want to do some trouble-shooting yourself, check for power between the two power pins and the neutral (white). You should see approximately 120 Volts (AC) (make sure your meter is on the 250 VAC scale) on each line. You should see 240 VAC between the two live wires.
|