Display shows E13 and the humidity function does not operate correctly (on models with humidity control)

Safety: Disconnect power before accessing the humidity sensor or module.

Steps to address E13:

• Identify humidity components: On Bosch models with humidity control, the sensor is usually located in the upper interior area, and a small humidification module may be present.
• Inspect sensor: Check for visible damage, corrosion, or moisture accumulation on the sensor.
• Check wiring: Ensure the sensor harness is securely connected to the control board.
• Replace sensor or module: If the sensor is faulty or the humidification module does not operate when commanded, replace the defective component with the correct Bosch part.
• Control board check: If new components do not resolve E13, the main control board may be at fault and should be replaced by a professional.