Curtis 1253 - Table 5 TROUBLESHOOTING CHART

Curtis 1253 Manual, Rev. F
33
Blue Ox Rev. A, draft #1 [3 August 2007]
5 — DIAGNOSTICS & TROUBLESHOOTING
Table 5 TROUBLESHOOTING CHART
LED PROGRAMMER
CODE LCD DISPLAY EXPLANATION POSSIBLE CAUSE
1,1 EEPROM FAULT EEPROM fault. 1. EEPROM data lost or damaged.
Note: Usually can be cleared by 2. EEPROM checksum error.
modifying any parameter value
in the Program Menu.
1,2 HW FAILSAFE Self-test or watchdog fault. 1. MOSFET shorted.
2. Controller defective.
1,3 MOTOR SHORTED Motor shorted. 1. Motor is shorted.
2,1 UNDERVOLTAGE CUTOFF Undervoltage cuto. 1. Battery voltage < LOVOLT CUTOFF setting.
2,2 LIFT LOCKOUT Lift operation locked out due 1. Controller received appropriate lift lock-
to undervoltage. out signal.
2. Inappropriate lift lockout signal:
SS LOCKOUT parameter not set correctly.
2,3 SEQUENCE ERROR Startup lockout. 1. Improper sequence of throttle or SS and
KSI or KSI plus interlock.
2. STARTUP LOCKOUT parameter not set
correctly.
3. Misadjusted throttle.
2,4 THROTTLE FAULT Wiper signal out of range 1. rottle input wire open or shorted.
(pot low fault). 2. rottle defective.
3. THROTTLE TYPE parameter not set correctly.
3,1 CONT DRVR OC Main contactor coil overcurrent. 1. Main contactor coil shorted.
2. Controller defective.
3,2 MAIN CONT WELDED Main contactor welded. 1. Main contactor stuck closed.
2. CONT CNTRL parameter not set correctly.
3. Main contactor driver shorted.
3,3 PRECHARGE FAULT Precharge fault. 1. Precharge circuit failure.
2. External short or leakage between B+
and B-.
3,4 MAIN CONT DNC Main contactor did not close. 1. Main contactor coil connection loose.
2. Main contactor did not close.
3. CONT CNTRL parameter not set correctly.
4,1 LOW BATTERY VOLTAGE Low battery voltage. 1. Battery voltage < undervoltage cutback
threshold.
2. Corroded battery terminal.
3. Loose battery or controller terminal.
4,2 OVERVOLTAGE Overvoltage. 1. Battery voltage > overvoltage shutdown
threshold.
2. Vehicle operating with charger attached.
4,3 THERMAL CUTBACK Over-/undertemperature 1. Temperature > 85°C or < -25°C.
cutback. 2. Excessive load on pump motor.
3. Improper mounting of controller
4. Operation in extreme environment.
5. ermistor failure.