Steelcase Slim Leg User manual

Published 12/2021
Troubleshooting Guide
Slim Leg
height-adjustable desk
Control Box
Collision Detection Device
Controller
Low-Voltage Cable
Low-Voltage Cable
Lifting Column
Power Cable
DUAL LEG SHROUD
SINGLE LEG SHROUD
integrated leg

02
Table of Contents
p 03 Maintenance Kit
p 03 Assembly Directions and User Guide Reference Links
p 04 Service Parts List
p 05 Common Procedures
p 07 Troubleshooting Problems and Solutions
p 07 No power to desk
p 07 Desk height is shown in centimeters instead of inches (or vice versa)
p 08 Desk will not go up or down
p 09 Desk goes up, but does not go down (or vice versa)
p 09 Desk does not go through full range of motion
p 09 Desk movement is not smooth
p 09 Lifting Columns jerk or hop while raised or lowered
p 10 Error Code displayed on Digital-Display Controller
p 12 How Slim Leg Desks Work

Always maintain a complete kit of spare parts that are known
to work properly, to quickly identify the root cause of problems
and resolve issues.
03
For ease of troubleshooting a digital error code reader
(e.g. Active Touch Controller) is recommended.
Read the Assembly Directions and User Guide:
Reference the Assembly Directions, also available online at
steelcase.com/installers, to ensure the desk or bench is assembled correctly.
Reference the User Guide, available online at
steelcase.com/slimleghad/userguide/en for information on how to operate
the desk, presets and height display information.
If after confirming proper assembly, and there are still problems with the
Steelcase desk, reference the troubleshooting steps throughout this document.
Scan the QR code to visit the product support page:

STYLE PART NO.
Lifting Column
Package
Freestanding 1450969002SR
Integrated 1451152002SR
ELECTRONICS:
Control Box 841364900SR
Simple Touch Controller 1093294001SR
Active Touch Controller 1093247001SR
Low-Voltage Cable (2m) 23084302SR
Power Cord 22047301SR (North America)
Power Kit 1468498001SR
Power Hardware Kit 1468497001SR
04
Obtaining replacement parts:
After troubleshooting the desk, if replacement parts are required refer to the
Product Reference portal for assistance or contact your local Steelcase dealer.
If you need help, call 888.STEELCASE.
Service parts list:

05
Common Procedures
Power-Saving Control Box:
1. The Control Box automatically powers down into ‘Standby’
mode after approximately 10 seconds of inactivity.
2. During Standby mode, the Control Box only consumes 0.1 watt
of power.
How to set the Active Touch
display height for the first time:
1. Upon first time install of the Active Touch
controller or after a Power Cycle, the text will
blink “SELECT”, “HEIGHT”.
2. Lift up or press down on the Controller to
select the correct lowest starting height.
3. Wait for 2 seconds until the light guide
fills. When all three bars are full, the height
selection is saved.
How to reset the Active Touch
display height:
1. On the Controller, press 1, 2, 1, 2.
The display will begin blinking “SELECT”,
“HEIGHT”.
2. Lift up or press down on the Controller to
select the correct lowest starting height.
3. Wait for 2 seconds until the light guide
fills. When all three bars are full, the height
selection is saved.
2
seconds
1
3
2
seconds
1
3

06
How to power cycle (initialize)
the Control Box:
In the unlikely event an error occurs, and the
desk is unresponsive:
1. Unplug the desk Power Cord from the outlet.
2. Wait at least 10 seconds.
3. Reconnect power to the desk.
How to test Lifting Columns:
Lifting Column can be operated independently.
1. Obtain a Control Box that is known to work. Be sure the Control
Box is unplugged, or plugged in but in Standby mode.
2. Connect the Low-Voltage Cable of the Lifting Column to the
known-good Control Box. Connect only to Port/Channel 1
(farthest from the Power Cable).
3. Obtain a Controller that is known to work, and connect it to the
Control Box. Tip: Verify that the Control Box software is current
when using the Active Touch controller.
4. If the Control Box is unplugged from the wall outlet, plug the
Power Cable back in.
5. With the system hot, operate the Lifting Column.
A. Can the Lifting Column be operated through its full range
of motion?
B. Does the Lifting Column appear to function normally?
Any faulty Lifting Column must be replaced. There are no
field-serviceable parts inside the Lifting Column.
1
3

07
No power to desk:
1. Check for power at the outlet.
2. Check that the Power Cord is fully seated
in the Control Box.
3. Inspect the Power Cord for defects;
replace the defective cord.
4. Check that all cables are connected per
the Assembly Directions.
Desk height is shown in
centimeters instead of inches
(or vice versa):
1. On the Controller, press and hold the 1and
buttons simultaneously for 3 seconds.
2. The display will change from “CM” to
“INCH” or “INCH” to “CM”.
3. The new selection will flash until the light
guide fills. When all three bars are full,
the height selection is saved.
2
3
Troubleshooting Problems
and Solutions
In order to prevent control box failures at installation, please
use a volt meter to ensure that every outlet into which a height-
adjustable desk will be connected has 120 volts, plus or minus 10
volts, between the hot and neutral contacts (the parallel openings)
BEFORE the height adjustable desk is plugged in. If this voltage
reading is above 130 volts, please contact the building electrician
for correcting the building wiring.
1
3
seconds

Desk will not go up or down:
1. Check for power to desk.
(Refer to “No power to desk” on page 06.)
2. Check that the desk is not severely
overloaded (Error Code E41, E42, E43, E47,
E48, E49). Remove or redistribute weight
on the desk; weight needs to be evenly
distributed and not concentrated over one
Lifting Column. Base supports a maximum
distributed weight capacity of 295 lbs/133.8 kg. Overloading the
Desk could lead to damage that would not be covered by warranty.
Tip: When calculating lifting capacity, subtract the weight of the
worksurface, understructure and options. See spec guide for weight
capacity by configuration.
3. Power cycle the Control Box. (Refer to page 06.)
4. Ensure the Desk is in Standby mode (>10 seconds of inactivity).
Inspect the Low-Voltage Cables and Control Box for damaged pins.
If any appear bent, use a thumb tack to correct. (Otherwise, replace
necessary components with undamaged versions.)
5. Carefully check the condition of the Low-
Voltage Cable in the Lifting Column. If the
Low-Voltage Cable is damaged, the entire
Lifting Column must be replaced.
6. To prevent further damage, the Control Box
will shut the whole Desk down if the Lifting
Column is faulty. Test individual Lifting Columns. (Refer to page 06.)
7. Check the Low-Voltage Cable by swapping with a Low-Voltage
Cable that is known to work.
8. Check the Control Box by plugging the original Power Cord,
Controller and Low-Voltage Cables into a Control Box that is known
to work.
2
DAMAGED
DAMAGED
5
08

09
Desk goes up, but does not go down (or vice versa):
1. Unplug Power Cable from wall.
2. Unplug each Low-Voltage Cable from the Control Box.
3. Inspect the Low-Voltage Cables and Control Box for damaged pins.
If any appear bent, use a thumb tack to correct. (Otherwise, replace
necessary components with undamaged versions.)
Desk does not go through full range of motion;
Desk movement is not smooth; Lifting Column jerks
or hops when raised or lowered:
1. Test individual Lifting Columns. (Refer to page 06.)
DAMAGED

Error code displayed on digital display Controller:
ERROR
CODE POTENTIAL CAUSE SOLUTION / TROUBLESHOOTING
E01
INITIALIZA-
TION
•Position error
•New Lifting Column added
1. Initialize the Control Box.
(Refer to page 06.)
E08 •Program fault 1. Unplug Power Cable for 15 seconds.
2. Initialize the Control Box.
(Refer to page 06.)
3. Replace Control Box
E10 •Power Cord pulled during
desk adjusting up or down
•Internal fault
1. Check that the Power Cord is not
entangled and is allowed to freely travel.
2. Plug desk into reliable 120v/240v outlet
and test.
3. Replace Power Cable or Control Box.
E11 •Lifting Column
disconnected
•Lifting Column added
or replaced
1. Check Low-Voltage Cable connections
for damage to the cord or pins.
2. Change Low-Voltage Cable or Lifting
Column.
3. Initialize the Control Box.
(Refer to page 06.)
E12 •Too much back drive
occurred
1. Move desk to lowest position.
2. Initialize the Control Box.
(Refer to page 06.)
E13 •Squeezed Low-Voltage
Cable
•Short in Lifting Column
motor
1. Check Low-Voltage Cable connections
for damage to the cord or pins.
2. Isolate and replace Low-Voltage Cable.
3. Isolate and replace Lifting Column.
E15 •Low-Voltage Cable pulled
during adjustment
•Internal fault
1. Check that the Low-Voltage Cable is not
entangled, and is allowed to freely travel.
2. If not installed already, use the strain-
relief loop built into the Control Box to
prevent pulling in the future.
E16 •Hitting multiple buttons
simultaneously
1. Check Controller for full function.
Does the desk adjust all the way up
and down?
E17 •Controller does not have
up-to-date software
1. Check Controller.
E23, E24,
E25
•Disconnection 1. Check Low-Voltage Cable connections
for damage to the cord or pins.
2. Change Low-Voltage Cable or Lifting
Column.
3. Initialize the Control Box.
(Refer to page 06.)
10

11
ERROR
CODE POTENTIAL CAUSE SOLUTION / TROUBLESHOOTING
E29, E30,
E31
•Change in Lifting Column
type
1. Check Lifting Column type to ensure it
matches other Lifting Columns.
2. Change Lifting Column to correct type.
3. Initialize the Control Box.
(Refer to page 06.)
E35, E36,
E37
•Loose or faulty Low-
Voltage Cable
•Sensor inside Lifting
Column is sending errors
1. Check Low-Voltage Cable connections
for damage to the cord or pins.
2. Initialize the Control Box.
(Refer to page 06.)
3. Replace Lifting Column.
E41, E42,
E43
OVER-
LOAD
•Hit obstruction
•Lifting Column is
overloaded
•Reached end stop
1. Remove obstruction from under the desk
(e.g. storage, chair).
2. Remove load.
3. Initialize the Control Box.
(Refer to page 06.)
E47, E48,
E49
OVER-
LOAD
•Reached end stop
•Hit obstruction
1. Remove obstruction from under the desk
(e.g. storage, chair).
2. Initialize the Control Box.
(Refer to page 06.)
E53, E54,
E55, E59,
E60, E61
COLLI-
SION
•Hit obstruction 1. Remove obstruction from under the desk
(e.g. storage, chair).
2. After too many “hit obstruction” errors, it
may be necessary to initialize the Control
Box. (Refer to page 06.)
E65, E66,
E67
•Motor poles are crossed
•Sensor cables crossed in
Lifting Column
1. Check Low-Voltage Cable connection(s)
for damage to the cord or pins.
2. Initialize the Control Box.
(Refer to page 06.)
3. If steps 1-2 do not work, test individual
Lifting Columns and replace if necessary.
(Refer to page 06.)
E71, E72 •Damage to Power Cable
•Damage to cable exiting
Lifting Column
1. Inspect Power Cord for damage;
if found, replace Power Cord.
2. Inspect cable exiting Lifting Column for
damage; if found, replace Lifting Column.

How Slim Leg Desks Work
•Each Lifting Column contains an individual motorized lift mechanism.
•The Control Box contains a power transformer. This converts high-voltage AC
current from the wall outlet (120v) to low-voltage 18v DC current, which powers
the Lifting Column.
•Only the main power cable carries high voltage. All other cables are low voltage.
•The Control Box contains a computer processor with embedded software
controllers.
•The Control Box controls all aspects of Desk motion.
•The Control Box will shut down the entire Desk if a collision is detected.
•The Controller is the user interface to the Desk, and directs all Desk movements
by lifting or pressing down until the desired height is reached.
•Preset data is stored in the Controller itself, not the Control Box.
Part No. 1459786001 Rev. B
12/2021 © 2021 Steelcase Inc. All rights reserved. All specifications subject to change without notice.
Trademarks used herein are the property of Steelcase Inc. or of their respective owners.
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