Safety: Turn the dehumidifier off and unplug it before removing any panels.

Steps to address E5:

Power cycle: Unplug for 10 minutes, then plug back in to see if E5 clears.
Locate the humidity sensor: On Homedics dehumidifiers, the RH sensor is typically clipped near the air intake grille or on the evaporator coil area, connected by a small harness to the control board.
Inspect for corrosion or moisture: If the sensor is on the coil, it may be exposed to condensation. Gently dry the sensor and connector with a soft cloth. Do not use heat guns or hair dryers.
Check wiring: Remove the front or side panel as needed and trace the sensor harness to the main PCB. Ensure the connector is fully seated and wires are intact.
Replace the sensor: If E5 persists, replace the Homedics dehumidifier humidity sensor. Unclip the old sensor, disconnect it from the board, and install the new one in the same location.
Board diagnosis: If a new sensor does not clear E5, the main control PCB is likely faulty and should be replaced or the unit retired.

Homedics dehumidifier shows E5 on the display and stops dehumidifying.

Possible Causes