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23
Maintenance
Troubleshooting
Problem Cause Solution
No Power, Nothing Runs
Is the cord plugged in. Plug in cord.
Circuit breaker tripped in building. Reset breaker.
Faulty switch. Call for service.
Faulty power cord or pigtail. Call for service.
Vacuum Motor Will Not Run
Vacuum circuit breaker tripped. Reset breaker.
Faulty main vacuum switch. Call for service.
Loose wiring. Call for service.
Faulty vac motor. Call for service.
Vacuum Motor Runs but
Suction is Poor
Debris lodged in vac shoe. Remove debris from vac shoe.
Dome gasket defective or missing. Replace as necessary.
Vacuum hose cracked or hose cuff
loose.
Replace or repair as necessary.
Incorrect vac shoe angle. Adjust as necessary.
Recovery tank full/float ball stuck in the
up position.
Drain and rinse recovery tank, free
float ball.
Clamp loose on vac motor. Call for service.
Recovery tank inlet loose or gasket
defective.
Call for service.
Vac shut-off engaged. Drain recovery tank.
Poor or No Water Flow
(Carpet is Streaky)
Solution filter clogged.
Drain solution tank and clean
solution filter.
Jets clogged or missing.
Clean using a vinegar/water
solution or replace.
Faulty solenoid. Call for service.
Propel lever not engaged.
Brush switch must be on and
propel lever squeezed to activate
spray.
Brush Does Not Spin
Brush switch on. Turn on brush switch.
Brush circuit breaker tripped. Reset circuit breaker.
Propel lever not engaged.
Propel lever must be squeezed to
activate brush.
Brush belt not broken. Replace as necessary.
Faulty brush motor. Call for service.
Machine will not Propel When
Handles are Squeezed
Circuit breaker tripped. Reset circuit breaker.
Speed control knob set at zero.
Turn speed control knob clockwise
to higher speed.
Faulty speed control board. Call for service.
Faulty propel motor. Call for service.
Solution/Brush Turn on When
Brush Switch Engaged
Faulty micro switch. Call for service.
86400940 Operators Manual - CMD20
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