Husqvarna 536LiP4 Workshop Manual page 46

Troubleshooting - 536 LiPX / LiP4 / LiPT5
10 Troubleshooting - 536 LiPX / LiP4 / LiPT5
Symptom
The product cannot be activated. No
LEDs come on after pressing the on/
off button.
The product cannot be activated
and batteries that are inserted are
immediately ruined.
The electric motor does not react
after pressing the control.
Electric motor stutters for a short
period when pressing the control,
after which it stops.
The product turns off under load
Uneven motor speed
46 – English
Possible causes
Faulty battery
Bad contact between battery and
product.
Damage to the multi-wire cable
between the control unit and the
keypad or breaker.
Short circuit in control unit
Short circuit in control unit
Poor connection in breaker signal
contact.
Motor contacts not properly assem-
bled.
Interior damage to breaker
Short circuit in control unit
Short circuit in control unit
Bad contact between battery and
product.
Short circuit in keypad
Poor connection in breaker signal
contact.
Damaged or worn out breaker
Recommended action
1. Check the battery by pressing the
status button. At least one green
LED should light up. See also
Battery and Charger
2. Make sure the power connectors
between the battery and the prod-
uct are not dirty or damaged. See
illustration in annex.
3. Repair or change the multi-wire
cable. (Applies only if there is
visible damage.)
4. Replace the control unit
Replace the control unit
1. Make sure the breaker signal
connector is correctly assembled,
dry, is not damaged and is corro-
sion-free. See illustration in annex.
2. Make sure the motor contact/
motor contacts are correctly fitted.
See figure 5 in the appendix.
3. Replace the breaker
4. Replace the control unit
Replace the control unit
Make sure the power connectors
between the battery and the product
are not dirty or damaged. See illus-
tration in annex.
Change the cabling.
1. Make sure the breaker signal
connector is correctly assem-
bled, dry, is not damaged and is
corrosion-free. See figure 3 in the
appendix
2. Replace the breaker