JLG 45e ANSI Service Manual - Manual (Page 31)

SECTION 2 - PROCEDURES
3120743 – JLG Lift – 2-7
1. At battery connection, the LED should not illumi-
nate. At key ON, the LED should illuminate steadily. If
the LED illuminates and remains steady, but no
drive can be selected, contact JLG Service Depart-
ment.
2. 1 FLASH - Internal Fault. (Replace MOS90)
3. 2 FLASHES - Procedure Fault. (Recycle Foot-
switch)
- Illegal start up sequence, 2 directions selected,
pump selected.
- Drive inhibited.
- Flashes until fault is cleared.
4. 3 FLASHES - Motor Permanently Low.
- Point ‘A’ < 7V in neutral, or < 7V for 15mS in
drive, or contactor coil short circuit or brake coil. - Drive & pump inhibited.
- Recycle to neutral to clear.
Figure 2-1. Sevcon Controller Troubleshooting Flow
Charts. (Sheet 1 of 4).
5. 4 FLASHES - Motor Permanently High.
- Direction contactor welded. (Point ‘A’ within 6V
of B + ve in neutral).