Each refrigerator module is linked to an indoor module. With the sticker on the sensor you can see which refrigerator module belongs to which indoor module.
If the refrigerator module is no longer connected to the indoor module, you will see the following message.
To solve this problem, it is usually sufficient to replace the batteries, you do this in the following way:
Step 1. Place the refrigerator module next to the indoor module
Step 2. Turn the refrigerator module over, and turn the white cover a quarter turn.
Step 3. When you notice that the lid is loose, gently pull the white part out.
Step 4. Loosen the screws, use a screwdriver if necessary
Step 5. Remove the old batteries and wait 60 seconds.
Step 6. Insert the new batteries into the outdoor module. Pay attention to the + and - side. See the picture.
Step 7. Place the cover back on the outdoor module, and retighten the screws. Hold the top securely so the screws can be tightened properly.
Step 8. Wait until a green LED starts flashing on the bottom of the outdoor module.
Step 9. Let the modules stand next to each other for a while. Wait a while for the sensors to connect to each other.
Step 10. After 5-10 minutes, check the app to see if the pairing was successful. If the pairing was successful, you can place the sensor back in the refrigerator.