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Trouble Shooting
ERROR
E1 Communication failure:
display <> controller
E02 Communication failure:
motor <> controller
E07 Overvoltage
E08 Motor open circuit
E12 Overcurrent protection
E13 Overload protection
POSSIBLE CAUSE
Cable is not connected well or loose.
Open circuit or damaged cable
Display cable failure
Controller cable failure
Unstable AC voltage
AC voltage too high
Open motor circuit
Loose motor cable
Overload weight
Obstructed transmission parts
Short motor circuit
Burned controller
Drive torque too high
Open motor circuit
Obstructed transmission parts
CORRECTION
Replug cable
Change cable
Change cable
Change controller
Restart the main switch
Check grid current
Change motor
Reconnect motor cable
System protection, restart
Verify moving parts,
eventually lubricate
Change motor
Change controller
Contact after-sales service
Change motor
Verify moving parts,
eventually lubricate
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