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Failure
code
Blade slave motor controller Software authenti-
72
cation exception.
73
Blade slave motor controller inspection failure.
74
Blade slave motor controller other error.
Blade main motor controller wrong operation
75
sequence.
76
Blade main motor controller other error.
PMU over heated.
80
81
PMU under voltage.
82
PMU over voltage.
PMU mean over current.
83
PMU peak over current.
84
The feedback current of PMU battery pack is
85
too large. (This fault code is only used for fault
prompt of parallel discharge board)
PMU BMS controller MOS over heated.
86
Disconnected communication between the PMU
87
and motor controller.
PMU external communication error.
88
BAT 1 over-heated error.
89
BAT1 low temperature.
90
91
BAT1 under voltage.
92
BAT1 communication error.
93
BAT1 unbalanced discharge.
94
BAT1 NTC failure.
95
BAT1 communication interruption.
English
Problem
21
Solution
Replace the blade motor controller.
Replace the blade motor controller.
Replace the blade motor controller.
Release the bail to eliminate the error. If it can't be
removed, replace the blade motor controller.
Replace the blade motor controller.
The equipment is automatically powered off and
can be used again after cooling.
Charge the battery.
Restart the mower.
The equipment is powered off and restarted. If the
fault cannot be eliminated, check whether the PMU
or the rear motor drive board is short circuited.
Replace the PMU or the motor drive board.
The equipment is powered off and restarted. If the
fault cannot be eliminated, check whether the PMU
or the rear motor drive board is short circuited.
Replace the PMU or the motor drive board.
Restart the mower. If it doesn't work, replace the
SP controller.
Turn off the mower to cool the controller and re-
start it.
Release the bail and restart the mower. If the fail-
ure is still occurred, replace the PMU controller or
blade motor controller.
Release the bail and restart the mower. If the fail-
ure is still occurred, replace the PMU controller or
blade motor controller.
Shut down and restart after the battery pack cools
down. If the problem cannot be solved, consider
replacing the battery pack.
If the working environment temperature of the
equipment meets the low temperature working en-
vironment of the battery pack, it is necessary to
consider replacing the battery pack.
Recharge the battery.
Replace new battery.
Replace new battery.
Replace new battery
Replace new battery
EN
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