Guide 3: Xiaomi Air Fryer NTC thermistor failure – Error E1. 200K Ohm NTC thermistor

Step 1

Document dedicated to the test of the 200 K ohm NTC temperature probe of the AIR FRYER XIAOMI hot air fryer, applies to this fryer and many others very similar

Step 2

Images showing the machine displaying Error E1 that will trigger roughly after a minute of being on. It can occasionally work normally by turning it on and off.

Step 3

Image 1: Display of Error E1 which prevents the machine from functioning.

Step 4

Guide for a homemade hooking tool to take apart the air fryer's NTC thermistor probe.

Step 5

Bill of materials required for the test:

Step 6

Image 1: Damaged/broken NTC air fryer probe.

Step 7

Insert 2 sewing needles into the 2 connector terminals as shown in image 1.

Step 8

The two alligator clips should be electrically isolated as shown in the image.

Step 9

Check the initial reading: At 25ºC (or anywhere near that temperature), the thermistor must have a resistance of roughly 100K Ohms.

Step 10

Apply heat to the thermistor/probe using a heat gun or a lighter. The probe resistance readings should gently decrease as the temperature increases. Since this one is damaged, it works unpredictably. Refer to the video for more clarification.