Dehumidifier displays P1 and stops dehumidifying; fan may continue to run.

Note: P1 on many Hisense dehumidifiers is a status/defrost indication, not a failure, but it can indicate operating condition issues.

• Check room temperature: Ensure the room is above the minimum operating temperature (typically 41°F / 5°C). If the room is too cold, move the unit to a warmer location.
• Allow defrost cycle: When P1 appears, the unit is usually in automatic defrost. Let it run for 10–20 minutes. Once the coil warms up, the code should clear and normal operation resume.
• Inspect for frost: If safe to do so, remove the front cover and check the evaporator coil. Heavy ice buildup indicates poor airflow or low ambient temperature.
• Improve airflow: Clean the air filter and ensure there is at least 8–12 inches of clearance around the unit. Blocked airflow can cause the coil to freeze.
• Sensor issues: If P1 never clears even in a warm room, the evaporator temperature sensor may be faulty and should be tested and replaced if necessary.