Dehumidifier shows F3 and stops, water tank is not full

Safety: Unplug the unit before inspecting the tank area.

• Re-seat the tank: Remove and firmly reinsert the water tank, ensuring it clicks fully into place.
• Inspect tank actuator: Look for a plastic tab or protrusion on the tank that presses a switch inside the housing. If broken, the tank may need replacement.
• Check micro switch: Locate the tank-present micro switch inside the housing. Manually press the lever and listen for a click. If no click or it feels loose, the switch may be faulty.
• Test continuity: With a multimeter, test the micro switch for continuity when pressed and released. Replace the tank detection micro switch if it fails.
• Adjust alignment: Slightly adjust the position of the switch bracket if the tank does not reliably engage it.