Operator Manual

OPERATION
83
T17 9020160 (5−2014)
MACHINE TROUBLESHOOTING
Problem Cause Remedy
Machine will not operate
Emergency stop button activated Turn button clockwise to reset
Machine fault detected See FAULT INDICATORS or
WARNING CODES
Discharged battery Charge battery
Loose battery cable(s) Tighten loose cable(s)
Faulty battery Replace battery
Faulty key switch Contact Tennant service
representative
Faulty control board Contact Tennant service
representative
Trailing water − poor or no
water pickup
Worn squeegee blades Rotate or replace squeegee blades
Squeegee out of adjustment Adjust squeegee
Clogged squeegee assembly Clean squeegee assembly
Vacuum hose loose Secure vacuum hose connections
Vacuum hose clogged Flush vacuum hose
Vacuum hose damaged Replace vacuum hose
Vacuum fan inlet filter dirty Clean inlet filter
Debris caught on squeegee Remove debris from squeegee
Vacuum hose to squeegee or
recovery tank disconnected or
damaged
Reconnect or replace vacuum hose
Tank cover not completely closed Check for obstructions
Torn seals on recovery tank Replace seals
Vacuum fan will not turn on
Recovery tank full Drain recovery tank
Foam filling recovery tank
Empty recovery tank
Use less or change detergent
Use a defoamer
Little or no solution flow to
the floor
Solution tank empty Fill solution tank
Solution flow turned off Turn solution flow on
Solution supply lines plugged Flush solution supply lines
Solution solenoid clogged or stuck Clean or replace
Poor scrubbing performance
Debris caught on scrub brushes Remove debris from brushes
Improper detergent / brushes pads
used
Contact Tennant representative for
recommendations
Worn scrub brushes pads Replace scrub brushes / pads
Excessive brush pressure Reduce scrub brush down
pressure
Uneven brush pressure Level scrub head
Debris trough full Empty debris trough
Broken brush drive belts on
cylindrical scrub head
Replace belts
Low battery charge Charge battery until the charger
automatically turns off