MACHINE TROUBLESHOOTING
SGJ32 86037680 01/03/07
4-19
PROBLEM
CAUSE
ERROR
CODE
SOLUTION
Vacuum motor does not run,
or runs slowly
Recovery tank full
Drain recovery tank
Recovery tank float
switch dirty
Clean float switch
Loose motor connection
7700
Check motor wires and
connections
Worn vacuum motor
brushes
Replace brushes, check
commutator
Poor scrubbing performance
Debris caught in scrub
brushes
Remove debris
Worn brushes or pads
Replace brushes or pads
Improper detergent,
brush or pad used
Contact equipment or
application specialists
Low scrub brush down
pressure
Increase brush pressure
Low battery charge
Charge batteries
Little or no solution flow to the
floor
Solution tank empty
Fill solution tank
Solution flow turned off
or set too low
Turn on or increase flow
setting
Solution strainer plugged
Clean solution strainer
Solution system
plumbing obstructed
Clear obstruction from
plumbing
Solution solenoid valve
obstructed or stuck
Clean or replace valve
Vent hole in solution
tank lid obstructed
Clear obstruction from vent
hole
Faulty solenoid valve
connection
Check wiring to solution valve
Brush motors do not run, or
run slowly
Circuit breaker(s) tripped
7600
Reset circuit breaker(s)
Low battery charge
Charge battery
Loose connection
7600
Check motor wires and
connection
Worn brush motor
brushes
Replace brushes, check
commutator
Scrub deck will not go
down/up
Faulty actuator
9000
Repair/replace actuator
Loose connection
9000
Check motor wires and
connections
Scrub deck goes down, then
raises
No brushes or pad
drivers on machine
9000
Install brushes or pad drivers
Error code not listed is
displayed
Controller detects
electrical problem
Contact service technician