Dehumidifier will not start and displays E1 on the control panel

Safety first: Unplug the Camry dehumidifier from the mains before opening any panels. Do not work on the unit while it is connected to power.

Steps to check and fix:

• 1. Power reset: Unplug the unit for 5–10 minutes, then plug back in and try to start it. If E1 returns immediately, continue.
• 2. Locate the ambient temperature sensor: Remove the front or side housing (varies by Camry model). The ambient NTC sensor is usually clipped near the air intake grille or on the evaporator inlet, with two thin wires going to the main PCB.
• 3. Inspect wiring and connector: Check the sensor harness for cuts, pinches, or burn marks. Reseat the connector on the main control PCB. Clean any corrosion with electrical contact cleaner and let dry.
• 4. Test the sensor: Using a multimeter set to resistance (kΩ), measure across the two sensor leads. At room temperature (20–25°C), most Camry NTC sensors read between 5–20 kΩ. If the reading is infinite (open) or near 0 Ω (short), the sensor is defective.
• 5. Replace if faulty: Order a compatible Camry ambient NTC temperature sensor using your exact model number. Mount it in the same position and route the wires away from sharp metal and hot components. Reconnect to the PCB.
• 6. Reassemble and test: Refit the covers, plug the unit in, and power on. The E1 code should clear automatically if the sensor signal is valid.

When to call a technician: If the sensor tests good but E1 persists, the fault may be on the main PCB’s sensor input circuit, which typically requires board-level diagnosis or replacement.