Dehumidifier shows P1 and stops; often associated with defrost mode.

Safety: Unplug the unit before inspecting internal components.

• Allow defrost: Leave the unit off for 30–60 minutes to allow any ice on the evaporator to melt.
• Check room temperature: Ensure the room is within the operating range (typically above 5–10 °C). Move the unit to a warmer room if necessary.
• Clean filter and vents: Wash the air filter and vacuum dust from the intake and exhaust grilles to improve airflow.
• Restart: Plug the unit back in and restart. If P1 persists in normal temperatures, the defrost sensor or control board may be faulty and require replacement.