JLG 45e Service Manual - Manual (Page 35)

SECTION -
3120861 – JLG Lift – -9
9. 8 FLASHES - Thermal Cutback, Controller.
- Heat sink temperature > 80 degrees C (176 degrees F).
- (Current limit will be zero at 90 degrees C [194 degrees F]).
- Allow unit to cool down, to clear flashing.
10. 10 FLASHES - Tachometer Fault.
- Controller > 33%, no tachometer output for 1 second.
NOTE: If the machine is operated at a very slow speed or stalled when climbing a grade of 20% or greater, a 10 flash fault will
occur. Recycle footswitch to recover.
11. 11 FLASHES - Tachometer out of calibrate.
- Pin voltage @ MOS90 above 9 volts or below 6 volts when in neutral.
Figure 2-1. Sevcon Controller Troubleshooting Flow Charts. (Sheet 4 of 4).