Cause 2:  Conveyor y-axis drive belt motor has failed.
Solution:  Check the y-axis drive belt motor, and its pulley and shaft. See VLF Trendsetter AL motors.

Cause 3:  Pusher bar has jammed.
Solution:  Check the pusher bar for debris or obstructions.

Cause 4:  Optical reflector sensor has failed to detect the plate.
Solution (a):  Check for dirt on the sensor. Clean it with a mild solution of soap and water.
Solution (b): Check the sensor for damage.
Solution (c): Check the following connections/cables:

• cable between the optical reflector sensor and the Genine4 board
• Canbus J26 (Genine0)
• Canbus J24 (Genine4)
• cable between conveyor motor and the Genine4 board

Solution (d): Check that the firmware has read the "plate detected" signal, and has sent the start signal to the motor.

Cause 5:  Genine4 board has failed.
Solution:  see VLF Trendsetter AL Genine boards.

Cause 6:  Power supply has failed.
Solution:  Check the Autoloader main power supply and the Power Distribution Board. (PDB) power supply.