SECTION II
TESTING AND TROUBLESHOOTING
Table 2-1. Troubleshooting Guide
Page 2-11Printed in U.S.A.
Problem Symptom Probable Cause Check Correction
Error code E05 (Valve
Driver Failure) displays on
hand control.
When ENABLE button is
pressed, or a function
button is selected, error
code E05 appears on
hand control.
A valve spool solenoid is
malfunctioning.
Press and hold the
SYSTEM OVERRIDE
button on the emergency
panel, while pressing,
one at a time, all the
remaining function
buttons on the
emergency panel (except
for DISABLE button). All
functions should operate
except for function with
malfunctioning valve
spool solenoid.
Replace malfunctioning valve
spool solenoid. Refer to para
4.22 or 4.23.
Wires or wire connections
between valve spool
solenoid 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.
Main controller board is
malfunctioning - valve driver
circuitry is malfunctioning.
Replace suspect main
controller board with
known working main
controller board.
Replace main controller
board. Refer to para 4.31.
Error code E06
(Footswitch Failure)
displays on hand control.
When a footswitch button
is depressed, error code
E06 appears on hand
control.
One of two foot switches for
a function is stuck in closed
position or will not complete
circuit when depressed.
See Figure 5-1 for this
check. Perform a
continuity check on both
foot switches of suspect
function (switch not
depressed = open /
switch depressed =
continuity.
If check fails, replace foot
switch pad.
Foot control interface board
is malfunctioning.
Replace suspect foot
control interface board
with known working foot
control interface board.
Replace foot control interface
board. Refer to para 4.44.
Wires or wire connections
between foot switches and
foot control interface 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.
Error code E07
(Trendelenburg Position
Sensor Failure) displays
on hand control.
When ENABLE button is
pressed, or a function
button is selected, error
code E07 appears on
hand control.
Trendelenburg position
sensor is malfunctioning.
Replace suspect
Trendelenburg position
sensor with known
working position sensor.
Replace Trendelenburg
position sensor. Refer to para
4.11.
Wires or wire connections
between Trendelenburg
position sensor, distribution
board, 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.
Main controller board is
malfunctioning.
Replace suspect main
controller board with
known working main
controller board.
Replace main controller
board. Refer to para 4.31.
© Schaerer Mayfield USA, Inc. 2004
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