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Troubleshooting
Warning triangle on keypad blinks
continuous
Warning triangle on keypad blinks
shortly after activation, where after
the product shuts off
Warning triangle on keypad blinks
shortly after activation, where after
the product hangs up with the green
led on
Product works but there are no indi-
cation light on the keypad
Product activates immediately when
battery is inserted, without pressing
the keypad
Warning triangle on keypad shows a
fixed red light
Product does not activate after
installing a new control unit
46 –
English
Hand guard in active position
Over temperature
Too low temperature on control unit
or battery
Incorrect values from motor tempe-
rature sensor. (Chain saws produced
before w4 -2014. Proven if diag-
nostic tool shows unrealistic values
on motor temperature)
Water in trigger switch signal con-
nector
Short circuit in keypad
Short circuit in trigger switch
Broken control unit
Trigger is applied during activation
Water in trigger switch signal con-
nector
Short circuit in keypad
Short circuit in trigger switch
Bad communication signal between
battery and product
Bad communication signal between
battery and product
Short circuit in keypad
Broken control unit
Spare part comes without software
1. Pull back hand guard
2. Wait until product cools off
(Max. 5 min)
3. Make sure product or battery are
not colder than -10°C
4. Update control unit software to
latest revision
5. Disconnect and dry trigger switch
signal connector, reassemble. See
pic. 3 in appendix
6. Replace keypad
7. Replace trigger switch
8. Replace control unit
1. Activate the product without apply-
ing the trigger simultaneously
2. Disconnect and dry trigger switch
signal connector, reassemble. See
pic. 3 in appendix
3. Replace keypad
4. Replace trigger switch
1. Make sure power connectors
between battery and product are not
damaged and free from dirt. See pic.
1 in appendix.
2. Make sure the small cables bet-
ween power connector and control
unit are not loose or damaged. See
pic. 6 in appendix
1. Make sure power connectors
between battery and product are not
damaged and free from dirt.
See pic. 1 in appendix.
2. Make sure the small cables bet-
ween power connector and control
unit are not loose or damaged. See
pic. 6 in appendix
Replace keypad
Replace control unit
Use diagnostic tool to install soft-
ware
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