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Before each fault elimination:
Switch off device.
Wait until the cutting device does not longer move.
Remove the battery.
Wear protective gloves.
After each fault clearance, put into operation and recheck all security installations.
Fault code - General
Device does not start after
switching on
Device does not work with full
power
Device works with interruptions
Cutting time with fully charged
battery too short
Operating
mode
cannot
selected
Device shuts off on its own
Fault code – brush cutter
The brushcutter does not work
with full output
Device does not run quietly,
vibrates strongly
Fault code – grass trimmer
The device does not work with full
performance
Cutting thread is not followed up.
Device does not run quietly,
vibrates strongly.
42
Possible faults
Possible Cause
Li-Ion battery run down
Lithium-ion
battery
correctly
Li-Ion battery too cold/ too warm
Li-Ion battery, motor or switch defect
The Li-Ion battery charge is low
The Li-Ion battery is defect
external loose connection
internal loose connection
ON / OFF switch defective.
Rechargeable battery is low
Battery service life exhausted
be
Slow / fast mode toggle button
defective
Lithium ion batteries too hot (45 °C)
Battery charge too low
Possible Cause
Cutting blade dull or damaged
Device overloaded as grass too high.
Mounting nut of the cutting blade loose
Cutting blade not properly mounted
Cutting blade damaged
Cutting thread torn
Cutting blade / head / device dirty
Possible Cause
Cutting thread to short/broken.
Device overloaded as grass too high
No more thread on the spool
Cutting thread entangled
Grass debris between thread spool and
protective hood
Corrective action
Charge the Li- ion battery
not
inserted
Check whether the lithium battery has
engaged audibly.
Allow the lithium battery to warm up/cool
down
Have the battery, motor or switch checked /
repaired by a licensed electrician or
customer service or replaced by original
spare parts.
Charge the Li-Ion battery (manual battery
"Charging the battery"
Contact the costumer service
Contact the customer service
Charge the Li-Ion battery (Abschnitt „Akku
laden")
Charging the rechargeable battery
Contact the customer service
Allow lithium-ion battery to cool down
Charge the lithium ion battery
Corrective action
Have the cutting blade sharpened or replace
it
Trim the grass in several passes.
Tighten the mounting nut
Mount the cutting blade properly; make sure
the cutting blade is positioned correctly in the
recess of the guard
Replace the cutting blade
Replace the cutting blade
Clean
Corrective action
Follow up the cutting thread.
Trim the grass in several passes.
Replace the thread spool
Recoil the cutting thread.
Remove grass debris
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