5 - 20
DPL-25S • DPL-30S • DPL-35S Super Series
Part No. 40462
September 2016
Section 5 - Troubleshooting Flow Charts
Chart 8
Machine Will
Not Lower -
Up Function
Operates
While pushing in the
control activate switch
and activating the down
function, hold both
switches and check for
power at the N.C. down
valve coils at the barrel
end of the lifting
cylinders. Put Pos. lead
of the voltage meter on
the yellow wire and Neg.
lead on the green/yellow
grounding wire.
12V DC
0V DC
Check the resistance of
the N.C. down valve
coils.
Repeat the test but
relocate the Neg. lead of
the voltage meter at the
ground terminal 10
(green/yellow wire) of the
13 pole terminal strip (J1)
in the ground control box.
12V DC
Check for a loose
connection at the
grounding stud in the
ground control box OR
check for a bad pin
connection at the quick
disconnect under the
base control box OR
replace 18/7 cable
because of an open
circuit in the green/yellow
grounding wire.
7 ohms
infinite
ohms
Pull the manual lowering
lever (red handle) located
on the base.
Replace the coil because
of an open circuit.
platform
lowers
One or both of the N.C.
down valves are
damaged or possibly
contaminated. Consult
Genie Industries Service
Department.
platform will not lower
One or both flow control
valves at the barrel end
of the lifting cylinders are
possibly contaminated.
Consult Genie Industries
Service Department.
Check the voltage at
terminal 3 on the down
N.O. contact block
located in the platform
control box.
12V DC
0V DC
Replace the red jumper
wire because of an open
circuit.
Continued on the next
page.
0V DC
