Dehumidifier displays P1 and stops collecting water

Note: On many Insignia dehumidifiers, P1 is not a fault but an indication that the unit is in automatic defrost mode.

Steps:

• Allow defrost cycle: Leave the unit plugged in and powered on. The compressor will stop while the fan may continue running to melt ice from the coil. This can take 10–30 minutes.
• Check room temperature: Dehumidifiers typically require room temperatures above about 41–45°F (5–7°C). If the room is colder, move the unit to a warmer area.
• Inspect for icing: Remove the bucket and front grille to visually check the evaporator coil. If it is heavily iced, let it fully defrost with the unit unplugged.
• Improve airflow: Clean the air filter and ensure intake and exhaust grilles are not blocked.
• Sensor issue: If P1 appears constantly even in a warm room and with a clean filter, the coil temperature sensor may be faulty and require replacement.

When to service: Continuous P1 with no visible icing and normal room temperature suggests a bad defrost sensor or control board.