OPERATION
Tennant T600 EE (04-2018)
23
SERVICE INDICATOR CODES
When the machine or battery charger detects a fault, the service indicator will flash. A fault code will be provided to
determine problem as described below.
Flashing service
indicator
Flashing LED
fault code
LED Fault Code
☼
= Flashing
CAUSE
SOLUTION
☼ ☼ ☼ ☼☼
Emergency shut-off button activated
Electronic parking brake system is disengaged
(option)
Release emergency shut-off button and restart
machine
See PUSHING AND TRANSPORTING
MACHINE
S S S
☼
S
Head lift actuator, wiring, connector or control
board problem
Contact service
S S S
☼☼
Brush motor wiring, connector or control board
problem
Contact service
☼ ☼ ☼ ☼
S
Brush motor 1 voltage loss
Brush motor 2 voltage loss
Contact service
S
☼ ☼
S
☼
Actuator stalled
Check for blockage. If fault repeats, contact
service.
S
☼
S S
☼
Solution valve wiring, connector or control
board problem
Check connections. Contact service
S
☼
S
☼☼
Solution valve over current
Contact service
S S
☼
S S
Vacuum motor wiring, connector or control
board problem
Contact service
S S
☼ ☼
S
Scrub motor under current
Use a more aggressive pad. If fault repeats,
contact service.
S S
☼ ☼☼
Propel motor wiring, connector or control board
problem
Contact service
☼
S S S
☼
Propel I-Drive fault
Propel I-Drive communication los
t
Propel power cycle fault
Propel current limit fault
Propel faults
Propel faults
Reset circuit breaker or restart machine. If
fault repeats, contact service.