11
TROUBLESHOOTING
Symptom Cause
Solution
Machine does not run.
Batteries not charged.
Charge batteries.
Circuit breaker tripped.
Reset circuit breaker.
Unplugged power head cord.
Plug in power head cord.
Battery cables loose or not connected.
Check and connect or tighten.
Damaged
switch.
Replace
switch.
Damaged power head cord.
Replace power head cord.
Carbon brushes worn out.
Replace brushes.
Vacuum motor worn out.
Repair / replace vac motor.
Battery charger plugged in.
Unplug charger cord from wall outlet.
Machine has poor or no
suction.
Obstruction in hose, tool, wand or intake.
Remove obstruction.
Tank is full.
Empty tank.
Dirty
filters. Clean
or replace filters.
Improper coupling connection / air leak.
Check gaskets for fit or damage.
Adjust coupling connection.
Gasket missing or damaged.
Replace gasket.
Holes in hose.
Replace hose.
Machine is difficult to move.
Damaged wheels.
Replace wheels.
Damaged
caster.
Replace
caster.
Batteries do not seem to run
long enough.
Over charging batteries. (Charging too
frequently.)
Monitor run time, and adjust charging
frequency accordingly.
Tops of batteries are dirty / wet.
Clean / dry, charge batteries.
Battery terminals are dirty / damaged, or
loose.
Clean terminals, and connectors,
replace damaged cables. Charge.
Electrolyte level is too low.
Add distilled water and charge.
Batteries are not fully charged.
Charge batteries for a full cycle on the
battery charger.
Charger is damaged.
Have an authorized serviceman
repair.
Battery is defective or worn out.
Check cell voltage while discharging.
Repair service for this machine must be performed by an NSS authorized service center. Repairs performed by an
unauthorized company will void the machine warranty. If you require assistance finding an authorized service
center, contact NSS Enterprises.
