Husqvarna LC 141VLi Workshop Manual page 30

Appendices and schedules
Fault Possible cause
There is a
problem with the
communication
between the
product and the
The products
battery
stops when it
is operated,
the warning The microswitch
indicator in the handle is
flashes defective
The product is
overloaded
The circuit
board is
defective
The battery
indicator does Wiring fault
not work
The motor
controller unit is
defective
The load is too
high
The circuit
board is
The SavE
defective
function does
not work
Wiring fault
The motor
controller unit is
defective
Wiring fault
The drive PCB
is defective
The microswitch
The drive
in the handle is
does not work
defective
The
transmission is
defective
30 – English
Steps Troubleshooting
Examine the white connector between the product and the
1
battery
Examine the pink cable from 579 68 66-01 through
2
connector X7 to 579 68 64-01
Examine the microswitch. Make sure there is a click sound
3
when the motor brake handle is pressed down
4 Press the far left end of the motor brake handle down
5 Examine the attachment of the spring in the plastic housing
6 Examine the attachment of the microswitch
7 Operate the product without putting a load on the blade
1 Do a visual inspection
Examine the blue cable from 589 75 93-01 through
2
connector X6, X8, X12 to 589 96 99-01
Examine the black cable from 579 68 64-01 through
3
connector X9, X11 to 589 96 99-01
Measure the voltage between the blue cable (X12.4) and
black cable (X11.1) in the plastic housing at the left end of
4
the handle. The voltage must be equal to the battery
voltage when the safety key is in position 1.
5 No troubleshooting possible
At a load of more than 12A the product switches from
1
SaveE to normal mode.
2 Do a visual inspection
Examine the gray cable from 579 68 64-01 through
3
connector X9, X11 to 586 96 99-01
4 No troubleshooting possible
Examine the wiring between 589 75 80-01 and 589 75
1
93-01
2 No troubleshooting possible
Examine the microswitch. Make sure there is a click sound
3
when the motor brake handle is pressed down
Examine closed circuit between black and white cable from
4
microswitch in handle (5899699-01), position X9
5 Examine the attachment of the microswitch
Make sure that the voltage gets to the transmission.
Measure the voltage at X17 between black and red cable in
6 the plastic housing. The voltage must be equal to the
battery voltage when the safety key is in position 1 and the
propulsion bar is pulled.
Action
Replace cabling 579
68 66-01 (battery
connector)
Replace 589 96 99-01
(upper handle kit)
The product stops if
the load is more than
25A
Replace 589 96 99-01
(upper handle kit)
Replace 579 68 64-01
(motor controller unit)
No action, the
behavior is correct
Replace 589 96 99-01
(upper handle kit)
Replace 579 68 64-01
(motor controller unit)
Replace 589 75 92-01
(transmission
conecting line)
Replace 582 02 92-01
(drive PCB)
Replace 589 96 99-01
(upper handle kit)
Replace transmission
589 75 80-01