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GENERAL FAULT FINDING GUIDE
CAUTION - Repairs should only be carried out by a QUALIFIED AND FULLY TRAINED PERSON !
PROBLEM
ELECTRICAL SYSTEM
No electrical power
Switch is turned on but power is intermittent to all
motor(s).
VACUUM SYSTEM
No vacuum
Low vacuum
SOLUTION SYSTEM
Pump motor is on but there is no spray
Uneven or weak spray
Solution drips form spray tips
BRUSH SYSTEM
Motor runs but brush does not turn
Floating brush won't move up or down
Brush motor fails to turn on after circuit breaker has
been reset
Polaris & Supernova Manual.doc 1/1/12
POSSIBLE CAUSE
1.
Defective power cable
2.
House or building circuit breaker tripped
1.
Faulty electrical cable
2.
Defective switches
3.
Loose "Molex" plug connector or terminal
connections
1.
Vacuum lid is not resting on waste bucket(s)
2.
Loose vacuum hose or vacuum connection
1.
Accumulated dirt on lid screen
2.
Worn out vacuum lid gasket
3.
Lint & dirt build-up on vacuum nozzle
4.
Defective vacuum hose
5.
Loose connection in the vacuum motor
1.
Solution tank is empty
2.
Clogged spray tips
3.
Clogged solution tank filter
4.
Blocked female quick connector
5.
Damaged pump diaphragm
6.
Damaged or clogged pump check valve
7.
Leak from pump head
8.
Clogged or faulty solenoid valve
1.
Partially clogged spray tips
2.
Partially clogged solution tank filter
3.
Partially clogged pump head or check valve
4.
Worn pump bearing (excessive noise)
5.
Damaged pump diaphragm
6.
Defective motor or rectifier
7.
Worn or damaged spray tip
1.
Debris caught in solenoid valve parts or plunger
1.
Broken drive belt
2.
Brush jammed
3.
Loose pulley tension
2.
Debris caught inside slide block guide
3.
Brush jammed
4.
Blown breaker
5.
Defective motor or rectifier
6.
Defective switch
7.
Loose wiring connection
Page 15 of 45
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