Genie GS-2046 Service Manual page 147

June 2003
REV A
Drive Reverse
Function
Inoperative
Be sure all other
functions operate
normally.
Be sure the circuit
breaker and fuse are
not tripped or blown.
Be sure the batteries
are fully charged and
properly connected.
Part No. 72972
With the key switch
turned to platform
controls and both
Emergency Stop buttons
light is
pulled out to the
ON
on
position, activate drive
controller in the reverse
direction and check to
see if the error indicator
light at the platform
controls is on.
light is not on
Check the connection at
the ECM U5 OR replace
the drive forward/
reverse valve cartridge
(item AI or BJ) OR
consult the Genie
Industries Service
Department.
Genie GS-2046 and GS-2646 and GS-3246
Section 5 • Troubleshooting Flow Charts
Connect the positive
lead from a volt meter to
the drive reverse
directional valve coil
(item AI or BJ) wire
0V
terminal without
disconnecting the wire,
and the negative lead of
the volt meter to the
brown ground wire on
the coil. Activate drive in
the direction
REVERSE
and check the voltage.
20V or more
0 or
Disconnect the wires
infinite
from the drive reverse
ohms
directional valve coil
(item AI or BJ) and
check resistance of the
coil. See Repair Section.
18 to 20 ohms
Repair or replace the
drive reverse directional
valve (item AI or BJ)
OR consult the Genie
Industries Service
Department.
Chart 12
Repair open in the WH
A7-rev coil wire from the
drive reverse directional
valve coil (item AI or BJ)
to the ECM U5 OR
repair open in the brown
ground wire circuit from
the coil to the wire
harness OR replace U5
OR consult the Genie
Industries Service
Department.
Replace the drive
reverse directional valve
coil (item AI or BJ).
5 - 21