Genie GS-2046 Service Manual page 150

Section 5 • Troubleshooting Flow Charts
Chart 15
Limit Switch
Function
Inoperative
Be sure the circuit
breaker and fuse are
not tripped or blown.
Be sure the limit
switches are clear of
debris.
Be sure the pothole
guards are deploying.
Be sure the batteries
are fully charged and
properly connected.
5 - 24
20V or
With the key switch
more
turned to platform
controls and both
Emergency Stop buttons
pulled out to the
ON
position and the platform
in the stowed position,
check voltage on the
WH B10 pothole sw wire
at the ECM U5.
0V
Check voltage at down 0V
limit switch LS6. Is there
20V or more on one side
of LS6?
20V or more
With the platform raised 0V
to 6 feet (1.8 m), check
for 20V or more on one
side of LS8.
20V or more
Check for 20V or more 0V
on both sides of LS7.
20V or more
Repair or replace the
wire circuit between LS7
and the positive terminal
at alarm H5
Genie GS-2046 and GS-2646 and GS-3246
Adjust the pothole limit
switch LS7 OR adjust
pothole limit switch LS8.
Check voltage on the 0V
other terminal at LS6.
20V or more
Repair or replace the
44D wire from alarm H5
to LS6.
Check LS8 for correct good
adjustment.
bad
Adjust LS8.
Check LS7 for correct good
adjustment.
bad
Adjust LS7.
June 2003
REV A
Adjust LS6 OR replace
the LS6 contacts.
Repair or replace the
wire circuit between
terminal B10 at ECM U5
and LS8 OR replace U5
Replace the LS8
contacts OR repair or
replace the wire circuit
between LS8 and LS7
OR replace the LS7
contacts.
Part No. 72972