AT911_O: Current Imbalance
On the VSODC, this fault would be displayed on the seven-segment LED as a number 16. A 16 displayed is one of several inverter faults. You will need to validate this fault at the EcoNet Thermostat or by looking at the red or yellow flashing LED's in the upper right quadrant of the drive itself
The Drive LED's will be flashing the Red LED 14 times.
Verify the U, V, and W terminals are in proper order according to the wiring diagram and that they are tight. Ensure the harness to the compressor is not damaged at either end, or in the middle.
Check the resistance of the compressor windings leg to leg to ensure they are similar from U-V, V-W, and W-U.
Verify the system is not grossly overcharged.
