Safety: Ensure the outlet is safe and not overloaded. Unplug the unit before opening any covers.

Steps to troubleshoot no power:

1. Check outlet and breaker: Test the outlet with another appliance. Reset any tripped breakers.
2. Inspect power cord: Look for cuts, burns, or kinks. If damaged, replace the power cord assembly.
3. Access main PCB: Remove the rear or top cover to reach the control board. Locate the onboard fuse (often a glass or ceramic fuse).
4. Test/replace fuse: With a multimeter, check continuity of the fuse. If blown, replace with the same rating. If it blows again immediately, there is a short that must be diagnosed by a technician.
5. Check for visible board damage: Burn marks or bulging components indicate a failed main control board, which should be replaced.
6. If board and fuse are good: The keypad or power button circuit may be faulty; replacing the user interface board may be required.

Dehumidifier does not power on at all; no lights or display

Possible Causes