Platform Controls Inoperative, Ground Controls Operate Normally - Genie GS-1930 Service Manual

Section 5 - Troubleshooting Flow Charts
Chart 5
Platform
Controls
Inoperative,
Ground
Controls
Operate
Normally
Be sure, if the Error
Indicator light is on at
the platform controls,
you refer to the specific
chart that relates to the
error code that is
displayed on the ECM.
Be sure the circuit
breaker and fuse are
not tripped or blown.
Be sure the batteries
are properly connected.
Be sure the batteries
are fully charged.
5 - 16
Turn the key switch to
platform control and
0V
make sure both
Emergency Stop buttons
are pulled out to the
ON
position at both the
ground and platform
controls. Check voltage
at the input side of the
platform controls contact
on the key switch (S2).
24V or more
Check voltage at the
0V
output side of contact.
24V
Check voltage at
0V
terminal A11 at the
ECM.
24V
0V
Check voltage at
terminal B2 at the ECM.
24V
Turn the key switch to
0V
platform controls and,
Before serial number
6091: check voltage at
terminal 4 on the main
circuit board at the
platform controls.
After serial number
6900: check voltage at
the input side of the
Emergency Stop button
(S9).
24V
Continued on the next
page.
Genie GS-1530 & Genie GS-1930
Service Manual - First Edition
Repair open in wht wire
jumper from the
Emergency Stop contact
to the platform control
contact at the key switch
(S2).
Check if the key switch
yes
internal cam is activating
platform control contact.
no
Replace key switch.
Repair open in wht wire
(A11-key sw) from the
key switch to A11 at
ECM.
Replace ECM.
Replace control cable
from the ECM to the
platform controls.
Replace the key switch
contact for platform
controls.
Part No. 39528