External Temperature Sensor Defective

What does 13 mean?

The external temperature sensor connected to the battery charger is reporting a defect or malfunction. This sensor is crucial for accurate temperature monitoring, which is essential for proper battery charging profiles and safety, preventing over- or under-temperature charging.

• Physical damage to the external temperature sensor cable or the sensor probe itself.
• Disconnection of the external temperature sensor from its designated input terminals on the charger.
• Internal failure or degradation of the temperature sensor component.

Click steps to track your progress.

1. 1

   Verify the physical connection and wiring integrity of the external temperature sensor and its cable.

2. 2

   Measure the resistance of the external temperature sensor across its terminals and compare it against the expected resistance curve or specified values for its temperature range.

3. 3

   Replace the external temperature sensor if it is physically damaged or measures outside the expected resistance range.