compliance with the REACH Directive
(EC) No. 1907/2006, see
www.stihl.com/reach
20. Troubleshooting
If necessary, contact a specialist
dealer; VIKING recommends VIKING
specialist dealers.
Fault:
Motor does not start
Possible cause:
– Battery not fully charged (one green
LED flashes on battery)
– Battery incorrectly inserted
– Safety plug is not inserted
– ON button not pressed
– Motor is overloaded because the grass
is too tall or too wet
– Motor overload protection activated
– Battery too cold or too warm (one red
LED illuminates on battery)
– Lawn mower too warm (three red LEDs
illuminate on battery)
– Humidity in machine and/or battery
– Mower housing is blocked
– Fuse in safety plug defective
– Machine defective (three red LEDs
flash on battery)
Remedy:
– Charge battery (
8.4)
– Insert battery into battery compartment
(
8.3)
– Insert safety plug (
9.1)
– Press the ON button (
12.2)
– Do not switch on motor in high grass,
adapt cutting height (
9.6)
– Allow machine to cool down (
– Warm up battery or allow to cool down
(
8.4)
0478 131 9922 C - EN
– Remove battery from battery
compartment and dry; clean/dry battery
compartment (
– Clean mower housing (
– Replace safety plug ( )
Fault:
Motor stops during operation
Possible cause:
– Battery or machine electronics
overheated
– Electrical fault
– Battery not fully charged
– Safety plug incorrectly inserted
– Machine overloaded due to mowing
grass which is too long or too wet
– Lawn mower fault
Remedy:
– Remove battery from battery
compartment; allow lawn mower and
battery to cool down (
– Remove battery from battery
compartment and reinsert (
– Charge battery (
– Insert safety plug (
– Adapt cutting height and mowing speed
to mowing conditions (
– Repair lawn mower ( )
Fault:
Excessive vibration during operation
Possible cause:
– Blade fastening screw is loose
– Blade is not balanced
Remedy:
– Tighten blade fastening screw (
– Re-sharpen (balance) or replace blade
(
13.8)
10.5)
Fault:
8.3)
Poor cut, lawn turning yellow
13.2)
Possible cause:
– mowing blade is blunt or worn,
– rate of feed is too high in relation to the
Remedy:
– Re-sharpen or replace mowing blade
– Reduce rate of feed and/or select
Fault:
Problems switching machine on or
deteriorating motor power.
Possible cause:
– Battery discharged
– Mowing grass which is too long or too
8.3)
– Mower housing is blocked
– Mowing blades are blunt or worn
8.3)
8.4)
Remedy:
9.1)
– Charge battery (
– Adapt cutting height and mowing speed
9.6)
– Clean mower housing (
– Re-sharpen or replace mowing blade
Fault:
Ejection chute blocked
Possible cause:
– Mowing blade is worn
– Mowing grass which is too long or too
13.7)
Remedy:
– Replace mowing blade (
– Adapt cutting height and mowing speed
cutting height
(
13.8)
correct cutting height (
9.6)
wet
8.4)
to mowing conditions (
9.6)
13.2)
(
13.8)
wet
13.8)
to mowing conditions (
9.6)
53