SYMPTOM
Line contactor does not close when capacitor does not precharge.
POSSIBLE CAUSE
Status code -51 may display if the key switch is open and closed too quickly after the Line contactor has opened due to a PMT fault. To correct, turn key off to 10 seconds before turning back to the on position.
Low or volts at LP1/RP1 wire #2
* Check wire #2 for open circuit. Repair
wire, if necessary.
Improper wiring of an accessory to the controller side of Line contactor. Check for drain from B+ buss bars.
Defective control.
* Replace controller unit.