12 i20NBV
OPERATOR MANUAL
BASIC TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Machine will not
operate
Control handle bail not pulled Pull control handle bail
Batteries need to be charged Charge batteries
Bad batteries Replace batteries
Loose batteries connection Tighten the connector
Circuit breaker tripped Reset breaker
Faulty button switch Contact Dealer
Brush motor will
not operate
Scrub head is raised o oor Lower scrub head
Faulty scrub head (up/down) switch Contact Dealer
Faulty control handle bail switch Contact Dealer
Faulty brush motor or wiring Contact Dealer
Worn motor carbon brushes Contact Dealer
Vacuum motor
will not operate
Faulty vacuum motor or wiring Contact Dealer
Worn motor carbon brushes Contact Dealer
Little or no
solution ow
Ball valve set too low or shut o Turn on the ball valve
Solution ow control knob set too low or
shut-o
Adjust solution control ow knob
Clogged solution tank lter or solution
hose
Clean solution tank filter or flush out
solution hose
Clogged solution solenoid valve Remove valve and clean
Poor water pick
up
Recovery tank is full Drain recovery tank
Loose drain hose cap Tighten cap
Clogged oat shut-o screen located in
recovery tank
Clean screen
Clogged squeegee assembly Clean squeegee assembly
Worn squeegee blades Replace or rotate squeegee blades
Incorrect squeegee blade deection Adjust squeegee blade height
Loose vacuum hose connections Secure hose connections
Clogged vacuum hose Remove clogged debris
Damaged vacuum hose Replace vacuum hose
Recovery tank cover not in place Properly position cover
Damaged recovery tank cover seal Replace seal
Faulty vacuum motor Contact Dealer
Low battery charge Recharge batteries
Short run time
Low battery charge Fully recharge batteries
Defective batteries Replace batteries
Faulty battery charger Repair or replace battery charger