Owner's Manual

8.4
These operators include a self-diagnostic circuit board using
troubleshooting LED indicators to signal the technician of
a problem.
LED Indicators Fig. 6
Figure 6
HOIST
INTERLOCK
TROUBLESHOOTING LED’s
EXTERNAL
INTERLOCK
+ 24 VOLTS
DC
STB
ENABLE
INDICATION
OFF
OFF
OFF OFF
OFF OFF OFF
ON
ON ON ON
ON ON
ON
NORMAL OPERATING CONDITION
STB DISABLED
STB ENABLED
HOIST INTERLOCK SWITCH OPEN:
1) HOIST RELEASE NEEDS RESET.
2) HOIST INTERLOCK CONNECTOR NOT PLUGGED IN.
3) HOIST INTERLOCK DEFECTIVE.
POWER SUPPLY PROBLEM:
1) CHECK AC POWER SUPPLY.
2) CHECK MAIN POWER FUSE.
3) CHECK SECONDARY FUSE (2A).
EXTERNAL INTERLOCK OPEN
S B
E AB
+ 24
V C
E T
I T K
HO T
I T K
STB
ENAB
+ 24
VAC
EXT
INTLK
HOIST
INTLK
TROUBLESHOOTING
LED S
DETAIL
www.geniecompany.com 08-12
Medium Duty Operator
GCL-MJ&MH