Diagnosis
The monitor is entering an incorrect power-saving or sleep mode. This is often triggered by a firmware mismatch or a faulty auto-off timer setting.
How to Fix It
Disable the auto-off feature. On the monitor, press the menu button. Navigate to 'Settings', then 'Power Saving'. Set 'Auto Off' to 'Off'. Also, check the 'Screen Saver' setting in the same menu. Set it to 'Off' for testing. The screen should now remain active while the camera is streaming.
If That Didn't Work
Perform a factory reset on the monitor. With the monitor on, press and hold the menu button and volume down button simultaneously for 10 seconds. Release when the screen flashes. You will need to re-pair the camera afterward.
Heads Up
A failing or overheating internal battery can also cause this. If the problem persists with auto-off disabled, the monitor likely requires a battery or mainboard replacement. Contact eufy support.