SECTION II
TESTING AND TROUBLESHOOTING
Table 2-1. Troubleshooting Guide
Page 2-10Printed in U.S.A.
Problem Symptom Probable Cause Check Correction
Error code E01 (Floor
Lock Status Switch Is
Not Responding)
displays on hand
control - Continued.
Floor lock cylinders do
not extend or retract
properly and error code
E01 appears on hand
control - Continued.
Outrigger floor lock status switch
remains tripped after outrigger
floor locks have extended (out of
adjustment).
Check if status switch is
tripped.
If necessary, adjust outrigger
floor lock status switch.
Refer to para 4.42.
Outrigger floor lock status switch is
malfunctioning - stuck open.
See Figure 5-1 for this
check. Perform continuity
check on normally closed
status switch (switch
untripped = continuity).
If malfunctioning, replace
outrigger floor lock status
switch. Refer to para 4.42.
Wires or wire connections
between floor lock status switches
and main controller board are
broken, loose or dirty.
See Figure 5-1 for this
check. Perform a
continuity check on all
suspect wires or
connections.
Clean any dirty connections.
Tighten any loose
connections. Replace any
broken connectors or wires.
Floor lock cylinders do
not retract properly and
Error code E01 appears
on hand control.
One of the floor lock status
switches is malfunctioning.
Perform continuity check
on N.C. floor lock status
switch (switch untripped =
continuity).
If necessary, adjust or
replace floor lock status
switch. Refer to para 4.42.
Retaining ring which holds ouside
floor lock sleeve onto floor lock
cylinder piston is missing.
Check to see if retaining
ring is missing.
Replace retaining ring.
Error Code E02
(Overcurrent - Motor
#1) displays on hand
control.
When function is
selected, error code E02
appears on hand
control.
Motor #1 is malfunctioning. Replace suspect motor #1
with known working motor
pump.
Replace motor #1. Refer to
para 4.26.
Charging / power driver board is
malfunctioning.
Replace suspect charging
/ power driver board with
known working board.
Replace charging / power
driver board. Refer to para
4.32.
Error code E03
(Overcurrent - Motor
#2) displays on hand
control.
When function is
selected, error code E03
appears on hand
control.
Motor #2 is malfunctioning. Replace suspect motor #2
with known working motor
pump.
Replace motor #2. Refer to
para 4.26.
Charging / power driver board is
malfunctioning.
Replace suspect charging
/ power driver board with
known working board.
Replace charging / power
driver board. Refer to para
4.32.
Error code E04
(Motor Driver Failure)
displays on hand
control.
When function is
selected, error code E04
appears on hand
control.
Wires or wire connections
between charging / power driver
board and pumps are broken,
loose, or dirty.
See Figure 5-1 for this
check. Perform a
continuity check on all
suspect wires or
connections.
Clean any dirty connections.
Tighten any loose
connections. Replace any
broken connectors or wires.
Charging / power driver board is
malfunctioning.
Replace suspect charging
/ power driver board with
known working board.
Replace charging / power
driver board. Refer to para
4.32.
Motor is burned out (most likely
motor #1).
Replace suspect motor
with known working
motor. (If only COLUMN
UP function causes error
code E04, motor #2 could
be malfunctioning - motor
#2 only runs for this
function during normal
operation).
Replace motor. Refer to
para 4.26.
© Schaerer Mayfield USA, Inc. 2004
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