Error 129 - EVA OUT temperature sensor detached

What does 129 mean?

The evaporator outlet (EVA OUT) temperature sensor has become detached from its position on the EVA OUT pipe in the indoor unit.

• Sensor not properly secured during installation or maintenance
• Vibration causing detachment
• Broken mounting clip or strap

Click steps to track your progress.

1. 1

   Securely reattach the EVA OUT temperature sensor to its correct position on the EVA OUT pipe.

2. 2

   Verify that the sensor is firmly in contact with the pipe and any retaining clips are in place.

3. 3

   Examine the sensor and its mounting for any physical damage.