Troubleshooting - Kärcher AP 100/50 M Operating Instructions Manual

TROUBLESHOOTING

PROBLEM
Loss of Power
Electrical shock
Vac motor speed varies
or doesn't run
Loss of vacuum
Pump runs no solution
Pump runs, loss of
pressure
Pump will not run
Solution hose fitting hard
to connect
4-6
CAUSE
Dead electrical circuit
Faulty power cord
GFCI breaker is tripped
Equipment not grounding
Receptacle not grounded
Internal wiring problem
Worn motor brushes
Motor worn out
Faulty switch
Loose vacuum dome
Vacuum circuit breaker
tripped.
Crack in dome of poor joint
Lint or dirt clogging
vacuum screen
Loose cuffs on vacuum
hose
Vac motor seals leaking
Floor tool vac chamber
clogged
Vac motor, hose, or dome
gasket
Pump inlet screen plugged
Pump circuit breaker
tripped.
Faulty pump switch.
Faulty pump motor.
Pump air locked
Internal or external
solution line damaged and
leaking
Jet orifice on cleaning
wand is to large
Internal pump components
wearing out
Note: Operation of pump using a wand or hand tool with an orifice of less than .06
will cause pump to cavitate or pulsate and could result in premature wear of pump
components.
Check valves in pump
head for particles or cuts in
seals
Unit not plugged in
Loose wiring
Corrosion on fittings.
86343680 AP 100/50 M
SOLUTION
Check building circuit breaker or fuse box.
Replace
Reset breaker on power cord
Follow grounding instructions exactly
Contact an electrician to check building's wiring
Have a trained service technician check machine's
wiring
Replace
Replace
Replace
Center and seal dome over tank
Reset breaker.
Replace or repair using acrylic plastic cement only
With power off clean screen
Tighten cuffs turning counterclockwise
Replace
Wash out with hose. Pick lint out with a wire
Replace
Clean inlet screen
Reset breaker.
Call for service.
Call for service.
Press trigger to open valve on cleaning wand to
relieve air
Replace
Total jet opening for 100 psi should be .06 to .08
Replace, see pump kit components (pg 4-3)
Take piston from BPR and lubricate with Superlube.
If problem still exists change BPR kit
Connect unit to 3 prong grounded outlet
See dealer
Clean with steel wool. Soak in acetic acid (white
vinegar). Lubricate lightly with silicone base lubricant.