How do I replace the batteries?

IMPORTANT: First check that your gateway is online.
If your gateway is offline, replacing the batteries in the indoor sensor or control box will not restore the connection. Get the gateway online before proceeding with a battery replacement.

The indoor sensor and control box each need two new AAA batteries. You will also need a flat-head screwdriver.

Indoor sensor

Take the indoor sensor down, open the back cover with the screwdriver and replace the batteries. Follow the plus and minus markings. Refit the back cover and put the sensor back in place.

Back of the indoor sensor, two AAA batteries and a flat-head screwdriver.

Control box

The control box is located near your heating system and also needs two AAA batteries. Leave the cable connected while replacing the batteries. You do not need to switch off the heating system.

Control box with its cable connected, two AAA batteries and a flat-head screwdriver.

Check the battery level in the app

Go to Settings → Ngenic Tune and select the indoor sensor or control box. The battery level is shown on the device page.

Indoor sensor page in the Ngenic Tune app showing the battery and signal indicators. The screenshot is in Swedish.

The screenshot is in Swedish: “Batteri” means “Battery” and “Signal” means “Signal”.

Before winter, consider replacing the batteries if the battery level is getting low. The app will remind you when it is time to replace them.

Gateway

The gateway connected to your router does not need batteries.

Gateway network and power connections, and the front with its blue indicator light.