TROUBLE SHOOTING
PROBLEM
Machine does not operate.
Brush motor does not operate.
Vacuum motor does not operate.
Little or no solution flow.
Poor water pick up.
Tennant 5100 (08- -97)
CAUSE
Faulty main power switch.
Faulty power cord.
Building circuit breaker has tripped.
Faulty brush trigger switch.
Brush triggers not pulled.
Brush circuit breaker has tripped.
Faulty brush motor or wiring.
Worn carbon brushes.
Faulty vacuum switch.
Faulty vacuum motor or wiring.
Worn carbon brushes.
Solution switch is not activated.
Solution line or solution tank filter is
clogged.
Solution valve or solenoid is clogged.
Faulty solution switch or solenoid.
Solution flow adjustment knob needs
adjusting.
ESt Option: ESt filter is clogged.
ESt Option: Faulty ESt pump.
Recovery tank is full and ball float has
been activated.
Ball float screen inside recovery tank
is clogged.
Clogged squeegee.
Worn squeegee blades.
Loose squeegee thumbscrews.
Vacuum hose connections are loose
or hose has a hole.
Clogged vacuum hose.
Recovery tank inlet hole is obstructed.
Defective tank gasket.
Loose drain hose plug.
Recovery tank lid not in place.
Loose vacuum motor.
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OPERATION
SOLUTION
Contact Service Center.
Contact Service Center.
Reset breaker.
Contact Service Center.
Pull brush triggers.
Clean or replace pad and reset brush
circuit breaker button.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Turn on solution switch.
Remove hose and blow compressed
air through it. Flush solution tank after
each use.
Remove valve or solenoid and clean.
Do not scratch inside of valve.
Contact Service Center.
Turn solution flow adjustment knob to
desired setting.
Remove and clean ESt filter.
Contact Service Center.
Empty recovery tank.
Remove screen and clean.
Clean squeegee.
Replace squeegee blades.
Tighten thumbscrews.
Push hose cuffs firmly on connections.
Replace hose if damaged.
Remove clogged debris.
Empty recovery tank and tilt tank side-
ways to access inlet hole, remove ob-
struction.
Replace gasket.
Tighten drain plug.
Properly position lid.
Contact Service Center.
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