Windsor CB20 Machine Troubleshooting Controller Fault Codes, Propel Circuit Board Troubleshooting

MACHINE TROUBLESHOOTING-

CONTROLLER FAULT CODES

PROPEL CIRCUIT BOARD TROUBLESHOOTING

Curtis 1228 LED DIAGNOSTICS- Basic and Cylindrical

During normal operation, with no faults present, the status LED is steadily on.

If the controller detects a fault, the status LED provides two types of information. First, it displays a slow flash (2 Hz) or a fast flash (4 Hz) to indicate the severity of the fault. Slow-flash faults are self-clearing; as soon as the fault is corrected, the vehicle will operate normally. Fast-flash faults (“.” in Table 2) are considered to be more serious in nature and require that the key switch be cycled to resume operation after the fault is corrected.

After the severity indication has been active for 10 seconds, the status LED flashes a 2-digit fault identification code continuously until the fault is

corrected. For example, code “1,4”—low battery voltage—appears as: one LED flash, followed by a pause, then 4 LED flashes, and then repeats.

LED	PROGRAMMER LCD	EXPLANATION	POSSIBLE CAUSE
CODE	DISPLAY
1,1	THERMAL CUTBACK	over-/under-temperature	1.	Temperature >92°C or < -
		cutback	25°C.
			2.	Excessive load on vehicle.
			3.	Operation in extreme
			environments.
			4.	Electromagnetic brake not
			releasing.
1,2	THROTTLE FAULT 1	throttle fault	1.	Throttle input wire open or
			shorted.
			2.	Throttle pot defective.
			3.	Wrong throttle type selected.
1,3	SPD LIMIT POT FAULT	speed limit pot fault	1.	Speed limit pot wire(s) broken
			or shorted.
			2.	Broken speed limit pot.
1,4	LOW BATTERY VOLTAGE	battery voltage too low	1.	Battery voltage <17 volts.
			2.	Bad connection at battery or
			controller.
1,5	OVERVOLTAGE	battery voltage too high	1.	Battery voltage >36 volts.
			2.	Vehicle operating with charger
			attached.
			3.	Intermittent battery
			connection.
2,1	MAIN OFF FAULT	main contactor driver Off	1.	Main contactor driver failed
		fault	open.
2,3	MAIN CONT FLTS	main contactor fault	1.	Main contactor welded or
			stuck open.
			2.	Main contactor driver fault.
			3.	Brake coil resistance too high.
2,4	MAIN ON FAULT	main contactor driver On	1.	Main contactor driver failed
		fault	closed.

86306300 CHARIOT BURNISHER 05/27/08 4-16