Just very occasionally your height adjustable desk may need re-setting, this is usually if there has been a blip in the power supply.
You may find your desk will go up but not down, or the other way round - please dont worry. Follow the simple steps in the video shown below, and this should quickly sort any problems you may encounter.
1. Press the down switch on the control panel until the lowest point is reached.
2. Release Switch
3.Press the down switch again for 10 seconds or until a double click is heard.