Temperature sensor fault

What does A30920 mean?

An error occurred during the evaluation of a temperature sensor connected to the power unit. This can manifest as a wire breakage or a disconnected sensor (e.g., KTY: R > 2120 Ohm) or a measured resistance that is too low (e.g., PTC: R < 20 Ohm, KTY: R < 50 Ohm). Accurate temperature monitoring is crucial for protecting the power unit from overheating. If unaddressed, this could lead to undetected overheating and potential damage to components.

Complete Troubleshooting Guide

1. 1

   Ensure the temperature sensor is correctly connected to the power unit, checking for loose wires, breaks, or corrosion.

2. 2

   If connections are secure and the alarm persists, replace the temperature sensor, as it may be faulty or out of specification.