Genie GS-2046 Service Manual page 146

Section 5 • Troubleshooting Flow Charts
Chart 11
Drive Forward
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.
5 - 20
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 forward
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
Connect the positive
lead from a volt meter to
the drive forward
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 forward direction
and check the voltage.
20V or more
0 or
Disconnect the wires
infinite
from the drive forward
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 forward directional
valve (item AI or BJ)
OR consult the Genie
Industries Service
Department.
June 2003
REV A
Repair open in the WH
C6-fwd coil wire from
the drive forward
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
forward directional valve
coil (item AI or BJ).
Part No. 72972