Diagnosis
The control box's internal capacitor is drained. It needs constant standby power to retain memory. This is a known design flaw in some early Elite models.
How to Fix It
Plug the desk into a wall outlet directly, not a power strip with a switch. Use a small UPS battery backup for your desk if power flickers are common. This keeps the control box powered.
If That Didn't Work
The control box itself may have a faulty capacitor. The part number is usually CB-ELT-A. Contact ApexDesk support for a replacement control box. Swapping it is a 15-minute job.
Heads Up
Unplugging the desk for more than a few minutes will always erase the memory. Reprogramming the presets is your only option if it loses power.