Electrical System: Troubleshooting
CAUTION
Remove all the jewelry, especially rings and watches, before doing
any electrical troubleshooting or testing.
For the effective troubleshooting and repairs, you must have a good
understanding of the electrical circuits and components that are used
on this machine; refer to the Electrical Schematics and Wire Harness
Drawings/Diagrams in
Appendix A (page A–1)
—Foldout Drawings.
If the machine has any interlock switches that are bypassed, connect the
switches for the correct troubleshooting and safety.
Note:
Check the InfoCenter display for possible operator advisories or faults
whenever diagnosing machine electrical problems.
InfoCenter Does Not Start-Up
Possible Causes
Correction
The key switch was not rotated to the S
TART
position.
Turn the key switch to the S
TART
position and
wait for the InfoCenter to start.
The lithium battery pack is disconnected from
the machine wire harness.
Connect the battery pack to the machine wire
harness.
The lithium battery pack is discharged.
Charge the battery pack.
Machine F1-1 (30 A) or F1-2 (3 A) fuse is
damaged.
Check the fuses and replace if they are
damaged.
The lithium battery pack fuse is damaged.
Check the battery pack fuse and replace the
fuse if damaged.
The key switch is damaged.
Check the key switch and circuit wires. Repair
as necessary.
The main contactor is damaged.
Check the main contactor and circuit wires.
Repair as necessary.
The wire harness connections or wires are
loose or damaged.
Check the electrical connections. Repair the
wire harness as necessary.
The lithium battery pack is damaged (battery
charger should be used to identify a battery
pack fault).
Replace the battery pack.
The TEC is damaged.
Replace the TEC.
Note:
The parking brake latch has to be released, the operator presence control
has to be engaged and the speed control has to be above the zero speed
position before the traction circuit will operate.
Traction Circuit is Inoperative
Possible Causes
Correction
The traction switch is not adjusted correctly or
is damaged.
Use the InfoCenter Diagnostics screen to
check the traction switch operation. Adjust or
replace the traction switch if necessary.
The speed control potentiometer is damaged.
Use the InfoCenter Diagnostics screen
to check the speed control potentiometer
operation. Check and repair the speed control
potentiometer and circuit wires if necessary.
Greensmaster
®
eFlex 1800, 2100 and 2120
Page 3–3
Troubleshooting:
12189SL Rev E