TROUBLESHOOTING
D-250 86038570 05/11/07
1
TROUBLE SHOOTING CHART
PROBLEM POSSIBLE CAUSE SOLUTION
No power to machine Dead electrical circuit Check building circuit breaker or fuse
box.
Electrical shock Faulty power cord Replace.
Equipment not grounding Follow grounding instructions exactly. Electrical shock
Receptacle not grounded Contact an electrician to check
building's wiring.
Worn motor brushes Replace.
Motor worn out Replace.
Vac motor speed varies or
doesn't run
Faulty switch Replace.
Loose vacuum dome Center and seal dome over tank.
Crack in dome or poor joint Replace or repair using acrylic plastic
cement only.
Lint or dirt clogging vacuum
screen
With power off clean screen.
Loose cuffs on vacuum hose Tighten cuffs turning counterclockwise.
Vac motor seals leaking Replace.
Floor tool vac chamber
clogged
Wash out with hose. Pick lint out with a
wire.
Loss of Vacuum
Vac motor, hose, or dome
gasket
Replace.
Solution hose fitting hard to
connect
Corrosion on fittings Clean with steel wool.
Soak in acetic acid (white vinegar).
Lubricate lightly with silicone based
lubricant.
Carpet not getting clean Severe soil conditions Make several passes at right angles to
each other.
Use a prespray.
Carpet too wet Over saturation Adjust solution pressure to lower
setting.
Make several passes without spray.
Leaving carpet too wet Check for loss of vac pressure. Carpet browning
Too much chemical Check label for correct solution
concentration.
Solution hose connection Check for positive connection.
Faulty pump Repair or replace.
Faulty floor tool valve Repair or replace.
Solution not flowing properly
Faulty pump switch Repair.
