24
WG/WB81EC-B/FEB20/V1.1
SYMPTOM
POSSIBLE CAUSE
TREATMENT
No power
Seat OPC switch “off’’ or damaged
Sit down on seat or check and change switch.
Drive mode switch or key switch damaged
Check and change.
Drive controller damaged
Check and change.
Poor contact of wire bundle plugs
Check and change.
Grass catcher not installed or in right position
Check the installation of grass catcher.
Drive-motor can not
start
Drive-mode shifting switch at “Neutral”
Shift to “FORWARD”or “REVERSE”.
Parking brake lever engaged
Release the Parking brake lever.
Foot on Brake pedal
Remove foot from Brake Pedal.
Foot on Driving pedal
Remove foot from Accelerator Pedal.
Blade-motor is blocked
Turn off the unit and clean the debris or wait
until the controller automatically unlocks
after 5s.
Drive-motor is blocked
Remove debris or obstacles.
Low power
Charge batteries.
Brake switch or accelerator switch damaged
Check and change.
Drive mode switch damaged
Check and change.
Drive controller damaged
Check and change.
Poor contact of wire bundle plugs
Check and change.
Blade-motor can not
start
Drive-mode shifting switch at “Neutral”
Shift to “FORWARD”or “REVERSE”.
Parking brake lever locked
Release Parking brake lever.
Blade-motor is blocked
Turn off the unit and clean debris.
Low power
Charge batteries.
Drive controller damaged
Check and change.
Poor contact of wire bundle plugs
Check and change.
Blade motor damaged
Check and change.
Unit dosen’t work
Controller damage or motor damage
Turn off the unit,and restart after 5
seconds or repeat this cycle several times.
If this doesn’t work, replace the controller.
Battery damage
Replace the battery pack.
Over vibration
Blades loose or unbalanced
Re-tighten or re-balance.
Blade bracket distortion
Replace.
Discharge poor or
can not discharge
Grass heavy or tall
First mow on highest height, then mow at desired
height.
Lawn too wet
Wait until lawn dry.
Lawn not flat
Blades cut over a high point
Replace or regrind.
Unit parts are not
functional
Switch failure. To find damaged parts, activate the self-checking function by following
these steps: Keep operator sitting on seat, shift button to neutral, and then turn the
key to “ON”. Press button “CCS”-“RMO”-“CCS”-“RMO’’ within 2 minutes after the key
is turned to “ON” to begin the self-checking process:
Unit parts are not functional
1 Press drive brake pedal, horn beeps, so switch is ok.
2 Press accelerator pedal, horn beeps, so switch is ok.
3 Pull park brake lever, horn beeps, so switch is ok.
4 Press button “RMO”, button lights and horn beeps, so “RMO” is ok.
5 Press button “LED”, front light works, so “LED” is ok.
6 Press button “CCS”, button lights and horn beeps, so “CCS” is ok.
7 Shift “drive mode switch” to “F”, press accelerator pedal, unit moves forward, so “Forward” is ok.
8 Shift “drive mode switch” to “R”, press accelerator pedal, unit moves backward, so “Reverse” is ok.
9 Shift “drive mode switch” to “F”, press “blade control button”, blades turn, so “blade control button” is
ok.
TROUBLESHOOTING
