This article shares the steps to determine if the sensors are working and resolve error codes.

The standard resistance of these temperature sensors should be measured at an ambient temp of 25℃ (77℉), please see below:

1. Please set the multimeter to KΩ
2. Connect the red and black measuring terminals to the sensor connectors(as shown in the image below);
3. Observe the displayed resistance value. If the resistance is around 5KΩ, it shows the sensor is normal; If it displays 0 or infinity, it means the sensor is short-circuited or open-circuited, the sensor is damaged and needs to be replaced with a new one.

NOTE: If the ambient temp is not 25℃, please check the attached PDF for the corresponding resistant value of different temperatures.