User Manual - HS-1900B Electric Sweeper
12
5
Maintenance guide
5.1 Main malfunctions and solutions
Note: Be sure to turn off the power of the sweeper and remove the key before performing
maintenance.
Failure performance
Possibility
Solutions
The power meter does not
display when the key
switch is turned on
（
to be confirmed
）
fuse is blown
Replace the fuse
Battery is not powered or abnormal
Charge; replace battery when not charging
Key Switch Fiber Exception
Check the fibers; replace if the switch is
damaged
The voltmeter shows that
the voltage is not in normal
range
Insufficient or abnormal battery voltage
Charge; replace battery when not charging
Power meter is abnormal
Check the gauge wiring; replace it if the
gauge is damaged
Unable to move forward or
reverse
（
to be confirmed
）
fuse is blown
Replace the fuse
Moving motor or accelerator pedal or
fiber exception
Check the wiring
Moving motor or accelerator pedal or
step forward/back switch is damaged
No reaction after pressing
the cleaning switch
（
to be confirmed
）
fuse is blown
Replace the fuse
Clean Switch Connector Abnormal or
Damaged
Check the wiring
；
replace it if the switch
is damaged
The brush does not drop
automatically
Brush limit bolt too high
Lower brush limit bolt height
（
to be confirmed
）
fuse is blown
Replace the fuse
Damage to Electric Push Rod
Replace Electric Push Rod
Brush does not work or
spins too slowly
Corresponding fuse is blown
Replace
corresponding fuse
Damage to the drive belt
Replace the drive belt
The motor of brush is damaged
Replace the motor of brush
The brush is too noisy to
work
There is a tangle on the brush
Remove the tangle
Brush is not fastened
Securing Screw for Fastening Brush
The motor of brush is abnormal
Replace the motor of brush
Car lights, loudspeakers do
not work
（
to be confirmed
）
fuse is blown
Replace the fuse
Damage to lights, speakers
