AC Input Overcurrent
On the VSODC, this fault would be displayed on the seven-segment LED as a number 15. A 15 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 Yellow LED 15 times.
Start by checking incoming voltage to the drive in the bottom left corner at the black and yellow wires. Line voltage is measured by reading the black or L1 line to the yellow or L2 line. Incoming AC Voltage should measure between 187 Volts AC and 253 Volts AC.
Check the line voltage for noise.
Check the compressor is operating with in specified limits..
If the problem still persists, then it's possibly a drive component issue. Replace the drive
