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TROUBLESHOOTING
Problem
Poor water pick-up
Poor scrubbing performance
Inadequate solution flow
or no solution
Machine does not run
No FWD/REV wheel drive
Vacuum shuts off and display shows
"FULL" when recovery tank is not full
26 - FORM NO. 56041479 / ConvertaMAX
Possible Cause
Worn or torn squeegee blades
Squeegee out of adjustment
Recovery tank full
Recovery tank drain hose leak
Recovery tank cover gasket leak
Debris caught in squeegee
Vacuum hose clogged
Using too much solution
Worn brush or pad
Wrong brush or pad type
Wrong cleaning chemical
Moving machine too fast
Not using enough solution
Solution tank empty
Solution lines, valves, filter clogged
Solution control valves not open
Solution solenoid valve
Main system controller
Tripped control circuit circuit breaker (10A)
Drive system speed contoller
Tripped wheel drive circuit breaker (45A)
Plugged squeegee hose
Vacuuming large amounts of water
at a high travel speed
™
34 / I-MAX
™
34HD
Remedy
Reverse or replace
Adjust so blades touch floor evenly
across entire width
Empty recovery tank
Secure drain hose cap or replace
Replace gasket / Seat cover properly
Clean squeegee tool
Remove debris
Adjust solution control valves
Rotate or replace brushes
Consult Nilfisk-Advance
Consult Nilfisk-Advance
Slow down
Adjust solution control valves
Fill solution tank
Flush lines, and clean solution filter
Adjust solution control valves
Clean or replace valve
Check error fault codes
(see service manual)
Check for electrical short circuit & reset
Check error fault codes
(see service manual)
Check for drive motor overload
Clear debris
Slow down or disable auto shut-off feature
(see service manual)
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