CBD_ : Communication Error U_-P_

To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.

Verify pump is turned on by confirming disconnect switch is in the ON position. Yellow LED on driver connector board should be flashing.

Disconnect pump from AC power. Check wiring to switch. If wiring is good, replace the AC disconnect switch.

Disconnect pump from AC power. Verify that the ribbon cable inside driver casing is connected.

Replace driver control board.