Machine Troubleshooting - Tennant T17 Operator's Manual

OPERATION

MACHINE TROUBLESHOOTING

Problem
Machine will not operate
Trailing water − poor or no
water pickup
Vacuum fan will not turn on
Little or no solution flow to
the floor
Poor scrubbing performance
44
Cause
Emergency stop button activated
Machine fault detected
Discharged battery
Loose battery cable(s)
Faulty battery
Faulty key switch
Faulty control board
Worn squeegee blades
Squeegee out of adjustment
Clogged squeegee assembly
Vacuum hose loose
Vacuum hose clogged
Vacuum hose damaged
Vacuum fan inlet filter dirty
Debris caught on squeegee
Vacuum hose to squeegee or
recovery tank disconnected or
damaged
Tank cover not completely closed
Torn seals on recovery tank
Recovery tank full
Foam filling recovery tank
Solution tank empty
Solution flow turned off
Solution supply lines plugged
Solution solenoid clogged or stuck
Debris caught on scrub brushes
Improper detergent / brushes pads
used
Worn scrub brushes pads
Excessive brush pressure
Uneven brush pressure
Debris trough full
Broken brush drive belts on
cylindrical scrub head
Low battery charge
Remedy
Turn button clockwise to reset
See FAULT INDICATORS or
WARNING CODES
Charge battery
Tighten loose cable(s)
Replace battery
Contact Tennant service
representative
Contact Tennant service
representative
Rotate or replace squeegee blades
Adjust squeegee
Clean squeegee assembly
Secure vacuum hose connections
Flush vacuum hose
Replace vacuum hose
Clean inlet filter
Remove debris from squeegee
Reconnect or replace vacuum hose
Check for obstructions
Replace seals
Drain recovery tank
Empty recovery tank
Use less or change detergent
Use a defoamer
Fill solution tank
Turn solution flow on
Flush solution supply lines
Clean or replace
Remove debris from brushes
Contact Tennant representative for
recommendations
Replace scrub brushes / pads
Reduce scrub brush down pressure
Level scrub head
Empty debris trough
Replace belts
Charge battery until the charger
automatically turns off
T17 9020160 (5−2014)