Husqvarna LC 551 iV - 7 Troubleshooting Guide; 7.1 Troubleshooting: Product Not Starting

7 Troubleshooting
7.1 Troubleshooting schedule
Problem Possible cause Step Troubleshooting
To do
The prod-
uct does
not start.
There is no battery in the
battery box.
1
Make sure that the battery is installed cor-
rectly.
Install a battery.
The battery is defective.
1
Push the button on the battery and do a
check of the battery error condition.
Replace the bat-
tery.
The safety key is not fully in-
stalled in the safety lock.
1
Make sure that the safety key is put in cor-
rectly in the safety lock.
Push the safety key
in the safety lock.
The relay is defective.
1
Make sure that there is a click sound when
the ON/OFF button is pushed.
Replace the pri-
mary control unit.
Wire fault.
1
Do a check of the connection to the handle. Connect the wires
correctly or replace
them if they are de-
fective.
2
Do a check of the wires, refer to the wiring
diagram.
Replace defective
wires.
The control panel is defec-
tive. 1
Do a visual inspection. Replace the control
panel if it is defec-
tive.
The primary control unit is
defective.
1
No troubleshooting is possible. Replace the control
unit if it is defective.
The prod-
uct does
not start,
the warn-
ing indica-
tor does
not come
on.
The micro switch in the han-
dle is defective. 1
Examine the micro switch. Make sure that
there is a click sound when the motor
brake handle is pressed down.
Replace the micro
switch if it is defec-
tive.
Wire fault.
1
Do a check of the wires, refer to the wiring
diagram.
Replace defective
wires.
The primary control unit is
defective.
1
No troubleshooting is possible. Replace the control
unit if it is defective.
1292 - 001 - Troubleshooting - 33