unicraft EWH Series Instruction Manual page 18

Care, Maintenance and Repair
Code Description
80 Operating mode Fault
81 Lifting error
82 Error of the lower po-
sition
83 Failure of the BMS
communication
90 Overvoltage
91 Strong discharge
92 Communication failure
93 Undervoltage
94 Overvoltage
95 Overheating protec-
tion
96 Temperature protec-
tion
18
Possible cause
Turtle switch does not work
Lifting knob does not work
Lowering button does not work
Communication with battery was interrupted:
1. BMS error.
2. The cable from the battery to the drawbar is defective.
3. The transmission module of the drawbar is defective.
High battery voltage:
1. Overload.
2. BMS error.
3. strong current from the motor during the shutdown from the road-
way.
The battery is quickly discharged:
1. The battery is not used for a long period of time
2. Overloaded.
The battery connection is interrupted.
Battery undervoltage:
1. Discharge.
2. Battery cell defective.
Overcorrection:
1. Unauthorized adjustment of the standard parameters.
2. Wrong parameter after replacement of the control.
3. Error in current detection of the lithium battery.
Extremely high battery temperature
High battery temperature
Part
Drawbar
Drawbar
Drawbar
Drawbar
Lithium
battery
Lithium
battery
Lithium
battery
Lithium
battery
Lithium
battery
Lithium
battery
Lithium
battery
EHW-Series | Version 1.02