Dehumidifier displays P1 and does not start dehumidifying

Understanding P1: On many GE dehumidifiers, P1 indicates the unit is in defrost mode or protecting the coil. This can be normal in cool rooms.

Steps to address P1:

• Check room temperature: Ensure the room is at least 65°F (18°C). Dehumidifiers do not work well in cold spaces and may stay in P1.
• Allow defrost cycle: If the unit has been running in a cool, damp area, let it sit powered on for 10–20 minutes. The fan may run while the compressor is off to melt frost.
• Inspect for icing: Remove the front grille and filter. If the evaporator coil is iced over, turn the unit off and let it thaw completely. Improve room temperature and airflow.
• Clean filter and coils: A dirty filter or coil can cause low coil temperature. Clean the filter and gently vacuum dust from the evaporator.
• Sensor check: If P1 never clears even in a warm room with a thawed coil, the defrost/evaporator sensor may be misreading. Inspect and replace the sensor if necessary.

Note: P1 by itself is usually not a failure code; it indicates a temporary operating mode. Persistent P1 in a warm room suggests a sensor or control issue.