Error 190 - No temperature changes in EVA IN during pipe inspection or wrong address

What does 190 mean?

During a pipe inspection, the EVA IN (evaporator inlet) sensor showed no temperature changes, or an indoor unit with a wrong address is reporting temperature changes.

• Faulty EVA IN sensor or its installation
• Problem with refrigerant flow affecting temperature readings
• Indoor unit assigned an incorrect address

Click steps to track your progress.

1. 1

   Verify that the EVA IN sensor is correctly installed and functioning properly.

2. 2

   Check for proper refrigerant flow within the system, ensuring it's not restricted.

3. 3

   Ensure the indoor unit has the correct, unique address assigned in the system configuration.