Humidifier mode shows F2 and does not produce mist

Safety: Unplug the unit and allow it to cool completely before opening. Risk of burns and electric shock.

Steps:

• 1. Let it cool: Wait at least 30 minutes after use before disassembly.
• 2. Access humidifier section: Remove covers to reach the humidifier heater block or ultrasonic module, depending on model.
• 3. Inspect thermal devices: On warm-mist Camry units, locate the overheat thermostat and any inline thermal fuse attached to the heater. Check for signs of overheating or discoloration.
• 4. Test continuity: Use a multimeter to test the thermostat and thermal fuse. An open reading indicates a failed safety device that must be replaced, not bypassed.
• 5. Check NTC sensor: If fitted, test the NTC sensor on the heater block for reasonable resistance at room temperature.
• 6. Replace faulty parts: Install new Camry-specified thermal fuse, thermostat, or NTC sensor as required. Ensure they are mounted firmly to the heater surface.

Warning: Never bypass thermal safety devices. If they have opened, investigate for limescale buildup or airflow issues that may have caused overheating.