VL2500 spot wash No Sensor troubleshoot Vari-Lite

Quick way to troubleshoot a NO SENSOR error on a VL2500 Spot or Wash

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This can come in handy.

Check that your motor runs smoothly ( means driver is good)

Check belt tension, check connectors

check wiring harness from sensor pcb to MCB

 If all OK then go to MCB

DC Voltmeter

Black probe on screw or chassis

Red probe on your test point

If voltage doesn't move: Bad Sensor

If voltage moves but error still: Problem on MCB