F03 - Temperature sensor circuit fault

What does F03 mean?

This indicates an issue with the NTC thermistor, which measures the water temperature. It might be a short circuit or an open circuit, leading to incorrect temperature readings.

• Faulty temperature sensor (thermistor)
• Damaged wiring to the sensor
• Loose connections at the sensor or main control module

Click steps to track your progress.

1. 1

   Switch off the machine and unplug it from the wall socket.

2. 2

   Wait for 1-2 minutes, then plug it back in and try to restart the program.

3. 3

   Ensure the machine has a stable power supply.

4. 4

   If the error reappears, professional repair may be needed to check the thermistor and connections.