Dehumidifier displays E7 and may run the fan but not the compressor.

Safety first: Disconnect power before opening the control panel or accessing internal wiring.

Steps to correct E7:

• Locate humidity sensor: On many Electrolux dehumidifiers, the RH sensor is mounted behind the front grille near the air intake or integrated into the control panel assembly.
• Inspect sensor and wiring: Check for dust buildup on the sensor element and ensure the harness is firmly connected at both the sensor and main control board.
• Clean sensor: If dusty, gently blow off debris with dry compressed air. Do not use water or solvents on the sensor element.
• Check continuity: With the unit unplugged, disconnect the sensor and check for continuity across the sensor pins according to the service manual. An open circuit or obvious physical damage indicates a bad sensor.
• Replace humidity sensor: If the sensor is faulty or E7 persists after cleaning and reseating, replace the humidity sensor module with an OEM Electrolux part.
• Control board replacement: If a new sensor does not clear E7, the main control board may not be reading the sensor correctly and should be replaced.

Warning: Avoid touching the sensing element directly; oils from skin can affect accuracy.