TROUBLESHOOTING CHART
EXP 98363 03/24/00
11
No Power To Machin e:
Dead electrical circ uit breaker in fuse box
Faulty power cord
Power sw itc h failure
Faulty circuit breaker
Internal w iring problem
Replac e
Replac e
Replac e
Replac e
Check for and correct any loose wire connections,
Vacu um Moto r Speed
Varies o r Do esn’t Run:
Worn motor brus hes
Motor worn out
Faulty sw itc h
Faulty circuit breaker
Internal w iring problem
Turn brus h m otor and pum p switches on with m achine tilted rearw ard (brush
off floor). Lower machine back to carpet slowly.
Test circuit breaker for continuity /R eplace if neces sary.
Higher amp draw s may indicate a mechanical problem. Find parts w hich are
not moving freely and repair or replace.
N uisance Tripp ing of Circu it Breaker:
Faulty circuit breaker
Mec hanical problem
Follow grounding instructions exactly.
Have an electrician inspect the building’s w iring.
Ensure that the m achine’s wiring matches the appropriate wiring diagram .
Chec k for and correct any loos e wire c onnections. Replace any wires or
components whic h are short c ircuiting.
Electrical Shock:
Equipment not grounding
Rec eptac le not grounded
Internal elec trical problem
Corrective Action:
Chec k building circuit break er.
Replac e pow er s witch failureTest s witch for continuity/Replac e if nec essary.
Test circuit breaker for continuity. Replac e if nec essary. With the m achine
unplugged, check for, and correct, any loose wire
c onnections inside the m achine at the switches and terminal block.
Loss Of Vacu um:
Loose vac dom e
Incorrect seating of recovery tank.
Crac k in dom e or poor joint
Dam aged dom e gasket
Lint or dirt c logging vacuum intake screen
Acc ess ory tool clogged
Internal elec trical problem
Accesso ry Tool Fitting Difficult to C onnect:
Corros ion on fitting
Brush N ot Turning:
Belt broken
Faulty sw itc h
Faulty circuit breaker
Faulty brush motor
Worn Bearing s:
Squealing or grinding sound in brus h housing
Carpet Not Getting C lean :
Severe soil conditions
Carpet Too Wet:
Worn spray jet(s)
Carpet Not Getting Wet:
Solution filter s creen clogged
Spray jet(s) clogged
Pump not running
Faulty pump
Solution valve adjus tm ent
Incorrect jet orientation
Seat dome squarely ov er tank opening.
.
Rem ove recov ery tank , clean off seals on top of solution tank, and reseal
recovery tank.
Replac e or repair using acrylic plastic cem ent only.
Replac e gas ket.
With pow er off clean v ac intak e s creen found in dom e.
Clean out tool, ensure free air flow.
Hav e a trained serv ice technician inspec t and repair the m achine.
Clean with s teel wool.
Rem ove and s oak in acetic ac id (w hite vinegar).
Lubricate lightly with s ilicone base lubricant.
Rem ove belt cover on right side of machine.
Inspec t belt Replac e if necess ary.
Replac e.
Replac e.
If the belt, circuit breaker, and switch have been tested and found to be in
good working order, the brus h m otor may need to be replaced.
Replac e bearings .
Make s everal passes at right angles to eac h other.
Us e a pre-spray.
R eplace spray jets w hich are producing m ore than a fine mis t.
C lean s olution filter sc reen loc ated inside lower tank near the front.
C lean or replace jets.
Do not use a wire to clean jet.
D amaged jets will cause ov er-saturation.
C heck for and correct any loose wires
R epair or replace
Adjust solution valve cable until valve operates when handle is pulled.
Align slit in jet parallel with center line of brus h.
