LCD
Description
Display
PCBA con-
trolled left
blade motor
fails
Plug (Triple-
Left blade
phase, power
see
motor
wire) connect-
"Fault
fails in
ing the left
code"
rotation
blade motor
with the corre-
sponding PCBA
is loosened.
Left blade mo-
tor fails
PCBA con-
trolled right
blade motor
fails
Plug (Triple-
Right
phase, power
see
blade
wire) connect-
"Fault
motor
ing the right
code"
fails in
blade motor
rotation
with the corre-
sponding PCBA
is loosened.
Right blade
motor fails
see
Accelerator pedal fails
"Fault
code"
see
Steering wheel fails
"Fault
code"
Parking brake
PCBA, which
Parking
is in the front
brake
see
frame assem-
fails, the
"Fault
bly, is broken.
mower
code"
cannot be
Parking brake
driven.
switch and/or
wire is broken.
Mower
Fault code
Status
on LCD
Indicator
607
n/a
509
n/a
509
n/a
507
n/a
609
n/a
609
n/a
311/411
OFF
307/407
312/412
OFF
309/409
OFF
801
OFF
56-VOLT LITHIUM-ION ELECTRIC ZERO TURN MOWER — ZT4200S/ZT4200S-FC
Audio
Cause
Indicator
One beep
PCBA failure
One beep
Loose connection
One beep
Motor failure
One beep
PCBA failure
One beep
Loose connection
One beep
Motor failure
PCBA failure
One beep
Loose connection
PCBA failure
One beep
Loose connection
One beep
PCBA failure
Wire/Switch
One beep
failure
Solution
Have repairs performed by a qualified
service technician.
Inspect the blade firstly. If it is loos-
ened, use a 9/16 in (14 mm) torque
wrench to tighten the bolt clockwise.
The recommended torque for the
blade bolt is 36-41 ft-lb (50-55 Nm).
Otherwise, have repairs performed by
a qualified service technician.
Have repairs performed by a qualified
service technician.
Inspect the blade firstly. If it is loos-
ened, use a 9/16 in (14 mm) torque
wrench to tighten the bolt clockwise.
The recommended torque for the
blade bolt is 36-41 ft-lb (50-55 Nm).
Otherwise, have repairs performed by
a qualified service technician.
Have repairs performed by a qualified
service technician.
Have repairs performed by a qualified
service technician.
Have repairs performed by a qualified
service technician.
75