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Sit-Stand Desks
Error code troubleshooting

This repair guide intends to help you identify and solve the minor problems caused by unusual operation of the electric system of our sit-stand desk. If the following guides can’t help solve the problems, please contact your point of purchase for further support or replace the accessories.


1. For Control Panel CT-05/CT-06

* E01: Overload protection has occurred. Please remove the items from the desktop.

* E04: The columns don't go together. Please unplug and reinsert the cables between the columns and control box, then hold together and long press the "Up" and "Down" buttons to reset the system.

* E08: The control panel is disconnected. Please check the connection. Unplug and reinsert the cables between the control panel andcontrol box.

* E10: There are 3 possibilities - a). The control box is out of position. Please make sure the control box is properly attached to the desk frame as the instruction manual or placed well on the even surface. b). The power cords have pulled the control box. Manage the cables and keep them from pulling the control box. c). Collision avoidance system has activated. Remove all the objects within the range of motion.

* E19: The reset process is interrupted. Please strictly follow the instruction to reset the system. Keeping pressing and hold the "Up" and "Down" buttons until the process is done.


2. For Control Panel CT-07/CT-08/CT-09J

* E04: The control panel is disconnected. Please check the connection. Unplug and reinsert the cable between the control panel and control box.

* E11/E21: The motor cords were disconnected. Please check the connection. Unplug and reinsert the cable between the columns and control box.

* E08: If E08 and RST error code displays, there are 3 possibilities - a). The control box is out of position. Please make sure the control box is properly attached to the desk frame as the instruction manual or placed well on the even surface. b). The power cords have pulled the control box. Manage the cables and keep them from pulling the control box. c). Collision avoidance system has activated. Remove all the objects within the range of motion. To reset the system, please hold together and long press the "Up" and "Down" buttons.

* E18/E28: Overload has occurred. Please remove the items from the desktop.


Push-Button Control Panel - CT-05 & Control Box

Touch-screen Control Panel - CT-06 & Control Box

Push-Button Control Panel - CT-07 & Compact Control Box

Touch-screen Control Panel - CT-08 & Compact Control Box

Touch-screen Control Panel - CT-09J & Compact Control Box

How to customize settings?

There are 4 custom options:

1. Minimal & maximum height limit.

2. Anti-collision sensitivity

3. Current height display

4. Child lock function


1. Minimal & maximum height limit.

a). For Control Panel CT-05/CT-06

Minimal height limit: Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep and the display flashes the Current Minimal Height Limit ("62.0" by default), then press "Up" or "Down" button to adjust the Min. Height Limit. The adjustable range is from 62 - 118 cm (24.4 - 46.4 inches). Press "1" to save, and press "T" to finish the adjustment.

Maximum height limit: Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep and the display flashes the Current Minimal Height. Press "M" button and the Current Maximum Height Limit ("128" by default) is displayed. Press "Up" or "Down" button to set the Max. Height Limit. The adjustable range is from 72 - 128 cm (28.3 - 50.4 inches). (Please Note: The display won't count the number immediately when you are in metric system. Keep pressing until the display count to your desired height limit.) Press "1" to save, and press "T" to finish the adjustment.


b). For Control Panel CT-07/CT-08/CT-09J

Minimal height limit: Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep and the display flashes "S-1". Press "M" button once and the Current Minimal Height Limit is displayed ("62.0" by default), then press "Up" or "Down" button to set your desired height, and press "M" again to save.

Maximum height limit: Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep and the display flashes "S-1". Press "Up" or "Down" button to switch from "S-1" to "S-7". When the display is flashing "S-2", press "M" button once and the Current Maximum Height Limit is displayed. Press "Up" or "Down" button to set your desired height, and press "M" again to save.


2. Collision Avoidance Settings

(GYRO senses abnormal motion / CURRENT senses impact with objects)


a). For Control Panel CT-05/CT-06

CURRENT Sensor - Adjusting the UPWARD/DOWNWARD Anti-Collision Sensitivity

Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep. Press "M" button until "CC-" begins flashing.Press "Up" or "Down" button to adjust the sensitivity. The higher the number, the higher the sensitivity of the unit. Press "1" to save, press "T" to finish the adjustment.


GYRO Sensor - Adjusts the overall sensitivity of the GYRO for all movement (UP&DOWN)

Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep. Press "M" button until "SC-" begins flashing. Press "Up" or "Down" button to adjust the sensitivity. The higher the number, the higher the sensitivity of the unit. Press "1" to save, press "T" to finish the adjustment.


b). For Control Panel CT-07/CT-08/CT-09J

S-3/S-4 CURRENT Sensor


S-3 Adjusting the UPWARD Anti-Collision Sensitivity

LONG PRESS "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep.Press "Up" until “S-3” begins flashing. Press "M" button, then press "Up" or "Down" button to adjust the sensitivity from level 1 to level 8.The higher the number, the higher the sensitivity of the unit.press "M" button to save.


S-4 Adjusting the DOWNWARD Anti-Collision Sensitivity

LONG PRESS "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep.Press "Up" until “S-4” begins flashing. Press "M" button, then press "Up" or "Down" button to adjust the sensitivity from level 1 to level 8.The higher the number, the higher the sensitivity of the unit.press "M" button to save.


S-5 GYRO Sensor


S-5 Adjusts the overall sensitivity of the GYRO for all movement (UP&DOWN)

LONG PRESS "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep.Press "Up" until “S-5” begins flashing. Press "M" button, then press "Up" or "Down" button to adjust the sensitivity from level 1 to level 8.The higher the number, the higher the sensitivity of the unit.press "M" button to save.


3. Changing the Display Height

(for adding the desktop thickness to the height setting)

a). For Control Panel CT-05/CT-06

LONG PRESS "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep.Press "M" until the Current Desktop Thickness is displayed.Then press "Up" or "Down" button to set the current display height. The adjustable range is from 0 - 5 cm (0 - 1.9 inches). After setting, press "1" to save, and press "T" to finish the adjustment.


b). For Control Panel CT-07/CT-08/CT-09J

LONG PRESS "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep. Press "Up" until "S-6" begins flashing. Press "M" button, then press "UP" or "Down" to set the current display height.Press "M" button to save.


4. Child lock function

a). For Control Panel CT-05/CT-06

Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep and the display flashes the Current Minimal Height Limit. Press "M" for five times and the Current Screen Lock Setting is displayed ("A-0" indicates function OFF; "A-1" indicates function ON). Press "Up" or "Down" to set your desired locking function. After setting, press "1" to save, and press "T" to finish the adjustment.


b). For Control Panel CT-07/CT-08/CT-09J

Long press "M" and "T" buttons simultaneously for about 5 seconds until the unit emits one beep and the display flashes "S-1". Press "Up" or "Down" button to switch from "S-1" to "S-7". When display is flashing "S-7", press "M" button once and the Current Screen Lock Setting is displayed. ("1" indicates function ON; "0" indicates OFF). Press "UP" or "Down" button to set your desired locking function, and press "M" button again to save.


Push-Button Control Panel - CT-05 & Control Box

Touch-screen Control Panel - CT-06 & Control Box

Push-Button Control Panel - CT-07 & Compact Control Box

Touch-screen Control Panel - CT-08 & Compact Control Box

Touch-screen Control Panel - CT-09J & Compact Control Box

How to lock & unlock the display?

For safety reasons the control panel has a locking function. To activate / cancel the locking function, follow the second part - "How to customized settings - 4. Child lock function".


a). For Control Panel CT-05/CT-06

To lock the control, press "M" button for 3 seconds. If the control is locked ,only a bar "---" is lighting in the display and any operation is invalid.

To unlock the control, press "M" button for 3 seconds, until the current height is shown in the display. The control will be active for 1 minute. If no activations made within 1 minute, the control will turn into locking mode again with the locking function is ON.


b). For Control Panel CT-07/CT-08/CT-09J

To lock the control, press "M" button for 3 seconds. If the control is locked, only a bar "---" is lighting in the display and any operation is invalid.

To unlock the control, press "M" button for 3 seconds, until the current height is shown in the display. The control will be active for 1 minute. If no activations made within 1 minute, the control will turn into locking mode again with the locking function is ON.

Push-Button Control Panel - CT-05 & Control Box

Touch-screen Control Panel - CT-06 & Control Box

Push-Button Control Panel - CT-07 & Compact Control Box

Touch-screen Control Panel - CT-08 & Compact Control Box

Touch-screen Control Panel - CT-09J & Compact Control Box

How to reset the system?

a). For Control Panel CT-05/CT-06

Long press "Up" and "Down" buttons simultaneously. The unit emits one beep and the display shows "" and the desk start moving downward and to the lowest position. Keep pressing until the display shows the current desk height. Then the reset process is finished.

b). For Control Panel CT-07/CT-08/CT-09J


There are 2 reset options:

1. Factory Reset

2. Reset of the Custom Programming


1. Factory Reset:

Long press "Up" and "Down" buttons simultaneously. The unit emits one beep and the display shows "" and the desk start moving downward and to the lowest position. Keep pressing until the display shows the current desk height. Then the reset process is finished.


2. Reset of the Custom Programming:

Long press "M", "T", and "Up" buttons simultaneously. The unit beeps to indicate the reset is completed.

Push-Button Control Panel - CT-05 & Control Box

Touch-screen Control Panel - CT-06 & Control Box

Push-Button Control Panel - CT-07 & Compact Control Box

Touch-screen Control Panel - CT-08 & Compact Control Box

Touch-screen Control Panel - CT-09J & Compact Control Box

How to save your desired desk height?

a). For Control Panel CT-05/CT-06/CT-07/CT-08

To save a memory position, press “M” button and the display will flash “”. While the “S-” is displayed, press the button "1", "2" "3".

To call a stored position, press memory button "1", "2" "3". and the system will start moving to the desired memory position. The display will count the height as it is driving to the memory position. Press any button to stop the motion.


b). For Control Panel CT-09J

To save a memory position, press “M” button and the display will flash “”. While the “S-” is displayed, press the button "1" or "2".

To call a stored position, press memory button "1"or "2". and the system will start moving to the desired memory position. The display will count the height as it is driving to the memory position. Press any button to stop the motion.

Push-Button Control Panel - CT-05 & Control Box

Touch-screen Control Panel - CT-06 & Control Box

Push-Button Control Panel - CT-07 & Compact Control Box

Touch-screen Control Panel - CT-08 & Compact Control Box

Touch-screen Control Panel - CT-09J & Compact Control Box

How to set time reminder?

Press the “T” button to set the period of time to inform users to stand up. Each press of the “T” button leads to an 0.5-hour increment.

The maximal setting of time is 2 hours. After setting a period of time, the display will flash for seconds and it will automatically return to display the current desk height. Then the indicator light on the top right (the light of CT-09J is on the top left) of the panel will be on. When the unit emits 5 beeps (CT-09J's vibrates 10 times), it reminds users that the set time is up.

To cancel the timer, repeatedly press the “T” button until the display shows the current height and the indicator light on the top right is off.

Push-Button Control Panel - CT-05 & Control Box

Touch-screen Control Panel - CT-06 & Control Box

Push-Button Control Panel - CT-07 & Compact Control Box

Touch-screen Control Panel - CT-08 & Compact Control Box

Touch-screen Control Panel - CT-09J & Compact Control Box

Monitor Arms
Problem-solving tips for installation

a). Tighten the clamp firmly, or the monitor stand will be shaky. For future use, don't discard the supplied Allen Key or other small parts that come with the package - store them properly.

b). The weight and size of the monitor SHOULD NOT exceed the maximum limits as found in the manual, or the arm can't support it.

c). To correctly install the screws, select one that best fits the mounting holes of the monitor arm. Neither too shallow nor too deep, or it may cause damage to the monitor arm. Besides, ensure the screw is threaded properly into the hole.

C-clamp monitor arm installation tips

Monitor weight and size limitation

How to correctly install the screws?

Problem-solving tips for using Mechanical Spring monitor arms

The monitor arm will bounce and move if the spring tension is not suitable. Once the monitor arm drops, turn the adjustment screw counter-clockwise with the Allen Key, while if it raises, turn the screw clockwise until it can stay in a horizontal position.


P.S. (For LDT14 & LDT45) DO NOT loosen the two screws located on the upper arm as damage may occur to the product.


Problem-solving tips for Mechanical Spring monitor arms

Problem-solving tips for using Gas Spring monitor arms

The monitor arm will bounce and move if the spring tension is not suitable. To solve this problem, firmly hold the monitor arm horizontally and position the arm. If the monitor arm drops, turn the adjustment screw counter-clockwise with the Allen Key, while turning the adjustment screw clockwise if the arm rises until it stays in a horizontal position.

Problem-solving tips for Gas Spring monitor arms

Tips for problems in use

a). Can not move the monitor.

DO NOT overtighten the tension screw, or the monitor arm may not move.


DO NOT overtighten the screws between two joints, or you can't move your arm.


DO NOT overtighten the screws behind the VESA plate, or you can't move your screens.


b). Monitor dropping from the position.

After a period of use, the fasteners may require re-tightening. Turn the head of the fastener clockwise.


c). Monitors are not aligned.

When using a dual monitor arm, if two monitors are not aligned, adjust the adjustment screws behind the VESA plate and reposition the screens to the same height.


d). How to use the handle correctly?


DO NOT hang anything on the handle, which should only be used to position the monitors to a comfortable viewing angle.

Can not move the monitor

Monitor dropping from the position

Monitors are not aligned

How to use the handle correctly?

Problem-solving tips for Articulating monitor arms

a). Monitor arm joints are loose.

Tighten the bolts clockwise with the Allen Key.


b). Monitor arms drop down from the pole.

Tighten the screws clockwise with Allen Key.


c). Monitors drift forward or backward.

When using a multi-monitor arm stand, keep the monitors in the safe desktop area so that they won't fall forward or backward.

Monitor arm joints are loose

Monitor arms drop down from the pole

Monitors drift forward or backward