| Code | Fault | Meaning |
|---|
| 1,1 | EEPROM defective | EEPROM defective (lift controller LED code 1,1).… |
| 1,2 | Hardware defective | Hardware defective (lift controller LED code 1,2).… |
| 2,1 | Low voltage | Low voltage - battery voltage is too low (lift controller LED code 2,1).… |
| 2,2 | Lifting lock | Lifting lock - the lifting-lock function of the controller has been triggered (lift controller LED code 2,2).… |
| 2,3 | Order fault (startup lockout) | Order fault / startup lockout (lift controller LED code 2,3).… |
| 3,2 | Contact error | Contact err - main contactor fault (lift controller LED code 3,2).… |
| 3,3 | Pre-charge fault | Pre-charge fault (lift controller LED code 3,3).… |
| 3,4 | Contactor not installed or not closing | The contactor has not been installed or does not close (lift controller LED code 3,4).… |
| 4,1 | Low-voltage protection | Low-voltage protection - battery voltage is lower than the LOVOLT CUTBACK set value (lift controller LED code … |
| 4,2 | Over-voltage protection | Over-voltage protection - the battery voltage is too high (lift controller LED code 4,2).… |
| 4,3 | Temperature protection (over/under-temperature) | Temperature protection - controller over-temperature or under-temperature (lift controller LED code 4,3).… |
| Code | Fault | Meaning |
|---|
| 1,2 | HW FAIL SAFE - self-test or watchdog fault | HW FAIL SAFE (display shows HW FAIL SAFE1-2-3) - controller self-test or watchdog fault.… |
| 1,3 | M-SHORTED - internal M- short to B- | M-SHORTED - internal M- terminal shorted to B-.… |
| FIELD OPEN | Field winding fault | FIELD OPEN - motor field winding fault.… |
| ARM SENSOR | Armature current sensor fault | ARM SENSOR - armature current sensor fault.… |
| FLD SENSOR | Field current sensor fault | FLD SENSOR - field current sensor fault.… |
| 2,1 | SPEED CONTROL FAULT - VSC signal out of range | SPEED CONTROL FAULT - the VSC (speed control) signal exceeds its range.… |
| 2,3 | START LOCKOUT - starting sequence wrong | START LOCKOUT - the starting sequence is wrong.… |
| 3,1 | CONT DRVR OC - contactor driver output overcurrent | CONT DRVR OC - contactor driver output overcurrent.… |
| 3,2 | MAIN CONT WELDED - welded main contactor | MAIN CONT WELDED - the main contactor is welded (stuck closed).… |
| 3,3 | PRECHARGE FAULT - internal voltage too low at startup | PRECHARGE FAULT - internal voltage is too low at startup.… |
| 3,4 | MISSING CONTACTOR | MISSING CONTACTOR - a contactor is missing or not connected.… |
| CONT DNC | Main contactor did not close | CONT DNC - the main contactor did not close.… |
| 4,2 | OVERVOLTAGE | OVERVOLTAGE - battery overvoltage shutdown.… |
| 4,3 | THERMAL CUTBACK - over/under-temperature cutback | THERMAL CUTBACK - controller over-temperature or under-temperature cutback.… |
| Code | Fault | Meaning |
|---|
| -01 | No seat switch input | Translated from Chinese source: no seat switch input signal.… |
| -02 | Forward direction switch closed at power-on | Translated from Chinese source: the forward direction switch is already closed when the truck is first powered… |
| -05 | Start switch or brake switch not closed | Translated from Chinese source: the start switch or brake switch has not closed.… |
| -07 | Accelerator input voltage too high | Translated from Chinese source: accelerator input voltage is too high.… |
| -09 | Forward and reverse switches closed simultaneously | Translated from Chinese source: the forward and reverse direction switches are closed at the same time.… |
| -15 | Battery voltage too low or control card out of adjustment | Translated from Chinese source: battery voltage is too low, or the control card is out of adjustment.… |
| -16 | Battery voltage too high or control card out of adjustment | Translated from Chinese source: battery voltage is too high, or the control card is out of adjustment.… |
| -41 | Thermal protection open or transistor overheated | Translated from Chinese source: thermal protection is open, or the transistor temperature is too high.… |
| -51 | Capacitor voltage too low before contactor pull-in | Translated from Chinese source: before the contactor pulls in, the voltage across the capacitor is too low.… |
| -67 | Armature current exceeds transistor current limit | Translated from Chinese source: armature current exceeds the current limit of the armature transistor.… |
Every entry names its source on its own page. Always confirm in the service manual for your exact model.