How to Troubleshoot Waltco Lift Gates

Inspect the electrical system if your lift gate motor overheats, or the LED indicator light is illuminated red. Loose or corroded battery cables, weak or dead batteries, and a faulty ground wire or connection can all be the cause. Repair or replace the parts at fault, then test the lift gate motor.

Start your truck engine if the lift gate motor fails, and the LED indicator light is illuminated yellow. The reduced capacity of your electrical system to produce power, when the engine is off, may be the cause. If the motor still fails to work once the engine is turned on, check the cables, ground wire and wire connections for faults. Make any necessary repairs or replacements and try the lift gate motor again.

Check the hydraulic fluid reservoir if the lift gate does not operate smoothly, or if there is a failure in the hydraulic pistons. Remove all of the old hydraulic fluid through the drain plug located on the underside of the tank. Flush out the system, and refill it with new hydraulic fluid. Bleed the hydraulic pistons according to the manufacturer's instructions, and retest the lift gate.