56-VOLT LITHIUM-ION ELECTRIC ZERO TURN MOWER — ZT4200L/ZT4200L-FC64
LCD
Display
Description
Fault code
on LCD
LED
Status
Indicator
Beeper Cause Solution
see “Fault
code”
Right
driving
motor
fails in
rotation
PCBA controlled
right driving motor
fails.
313 OFF one beep PCBA failure
Have repairs performed by a quali-
ed service technician.
Plug (Triple-phase,
power wire) con-
necting the right
driving motor with
the corresponding
PCBA is loosened.
417 OFF one beep
Loose con-
nection
Have repairs performed by a quali-
ed service technician.
Plug (Six pins, signal
wire) connecting
the right driving
motor with the cor-
responding PCBA is
loosened.
401 OFF one beep
Loose con-
nection
Have repairs performed by a quali-
ed service technician.
Right driving motor
fails.
417 OFF one beep
Motor
failure
Have repairs performed by a quali-
ed service technician.
see “Fault
code”
Left blade
motor
fails in
rotation
PCBA controlled left
blade motor fails
607 n/a one beep PCBA failure
Have repairs performed by a quali-
ed service technician.
Plug (Triple-phase,
power wire) con-
necting the left
blade motor with the
corresponding PCBA
is loosened.
509 n/a one beep
Loose con-
nection
Inspect the blade rstly. 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 qualied service technician.
Left blade motor
fails
509 n/a one beep
Motor
failure
see “Fault
code”
Right
blade
motor
fails in
rotation
PCBA controlled
right blade motor
fails
507 n/a one beep PCBA failure
Have repairs performed by a quali-
ed service technician.
Plug (Triple-phase,
power wire) con-
necting the right
blade motor with the
corresponding PCBA
is loosened.
609 n/a one beep
Loose con-
nection
Inspect the blade rstly. 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 qualied service technician.
Right blade motor
fails
609 n/a one beep
Motor
failure