Diagnosis
Intermittent power loss to the control board. The unit is experiencing brief power dips or the outlet connection is unstable.
How to Fix It
First, check the power plug. Ensure it is fully inserted into a grounded wall outlet. Do not use an extension cord or power strip. Plug another appliance into the same outlet to test for instability. If the problem persists, the issue may be with your home's electrical circuit or a nearby appliance causing voltage spikes when it cycles on.
If That Didn't Work
If the outlet is stable, the problem may be internal. A failing capacitor on the control board can cause memory loss during normal operation. This requires component-level repair.
Heads Up
A consistently resetting clock is often a warning sign of a poor electrical connection, which can be a fire hazard. Have an electrician inspect the outlet and circuit if you rule out a loose plug.