Herman Miller Electric Sit Stand Desks
Operating Instructions
2
6.0 Errors Messages
6.1 Error code: HOT
The SMART control unit is fitted with overheating protection.
Overheating has caused it to stop the control unit.
Solution: Wait until the control unit has cooled down and HOT is no longer
displayed. The SMART control unit is then operational again. This could take
several minutes.
6.2 Error codes: E24/25/26/48/49/60
Motor current overload. The control box believes the desk movement is
being obstructed or it has too much weight on the desk. This may also occur
if the actual height of the Worksurface does not correspond to the height
reading on the LED control switch. In this case when the column reaches its
physical limit the control box does not realise this and thinks the desk has
collided with something.
Solution: Remove load, remove obstructions. The desk should now operate.
If not a manual reset may be required, see section 3.0 Manual Reset.
6.3 Error code: E71
This applies to desks with collision detection control boxes. If the control
unit detects a fault on the collision sensor the code E71 appears in the
display of the control switch, and should either the Desk Up or Down Keys
be depressed when this code is displayed, 3 clicks will be heard from the
control unit and the desk will not move.
4.0 Storing Preferred Desk Heights
Step 1
Using the Desk Up/Desk Down Keys adjust the desktop
to the position you want to save.
Step 2
The display will show the desktop height (e.g. 13.4).
Step 3
Press the Memory Key.
Step 4
The display will read S-.
Step 5
Press the required Memory Position Key (e.g. 2).
The display will read S2.
The set desktop position will now be saved to the selected
Memory Position Key. You will hear an audible double click
and after about 2 seconds the saved desktop position
will be displayed.
This situation also occurs when the collision detection unit has been
disconnected from the control box has been then reconnected.
Solution: Reset the collision detection sensor.
1. Disconnect the collision sensor from the control box.
2. Press the ‘Desk Up Key’ until the desk has reached its highest position.
The up key must be pressed until the desk begins to move with
reduced speed to the highest position and the code E71 disappears.
There, the ‘Desk Up Key’ may need to be released and pressed again.
3. The control unit will click three times, to confirm that the sensor is
disabled.
4. Reconnect the collision sensor to the control box and conduct a
manual reset, see section 3.0 Manual Reset.
6.4 Error codes: E36/37/38/61/70
Column or motor missing or not detected.
Solution: Disconnect the mains supply to the control box and wait at least
5 seconds. Re-connect the missing columns or motor leads to the control
box. Reconnect the mains supply to the control box. Conduct a manual
reset, see section 3.0 Manual Reset.
6.5 Error: Desk does not reach full height
If for any reason the desk does not reach its full height conduct a manual
reset, see section 3.0 Manual Reset.
5.0 Using Stored Height Settings
Step 1
Press and hold the required Memory Position Key (e.g. 2).
The desktop will move until it reaches the saved position.
If you release the key before the saved position is reached,
the desktop will stop and the saved desktop position will
not be reached.
Step 2
When the desktop reaches the saved position you can
now release the key.
The display will read the current (saved) desktop position.
