Operating Guide
kobalttools.com
21
WARRANTY
5-YEAR HASSLE-FREE WARRANTY
This Kobalt 21 in. 80 V lithium-ion cordless mower is warranted to the original purchaser from the 
?@X"
This Kobalt 21 in. 80 V lithium-ion cordless mower is warranted for the original user to be free from 
defects in material and workmanship.
If you believe that the Kobalt 21 in. 80 V lithium-ion cordless mower is defective at any time during the 
[\]. 80 V lithium-ion mower along with proof of 
purchase to the place of purchase for a free replacement or refund.
This warranty is void if: defects in materials or workmanship or damages result from repairs or 
alterations which have been made or attempted by others or the unauthorized use of nonconforming 
parts; the damage is due to normal wear, damage is due to abuse (including overloading of the tool 
beyond capacity), improper maintenance, neglect or accident; or the damage is due to the use of the 
tool after partial failure or use with improper accessories or unauthorized repair or alteration.
%
to state.
This warranty excludes replacement blades and grass bag.
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
The mower vibrates 
at high speed.
1.  The motor shaft is bent. 
2.  The blade is unbalanced.
1.  Stop the motor, disconnect the 
mower from the power source, 
and inspect it for damage. Repair 
the mower before restarting. If the 
vibration persists, call 1-888-356-
2258. 
2. Call 1-888-356-2258.
Mower turns off 
during mowing.
1.  The battery is not charged.
2.  Grass or debris is jammed between 
the blade and deck.
3.  Cutting height is set too low. 
4. Operating temperature of the 
mower is too high.
1.  Charge the battery.
2.  Remove battery; check under 
deck for jams.
3.  Increase the cutting height.
4. Move the mower to a cool, dry 
location. Let rest for 30 minutes.










