Cozify HAN requires a new model electricity meter with an RJ12 HAN port (e.g., AIDON 7534), and the HAN port needs to be activated by your electricity network company. Contact your electricity network company to activate the HAN port of your electricity meter.
The installation requires an internet-connected home network and a WiFi router (2.4GHz network setting). Once installed, Cozify HAN can be read wirelessly locally from the home network via WiFi or with a wired Ethernet connection.
Download and install the Cozify HAN mobile app from the Android or iOS app store (the app will be available on the official product release date in 2025 - the exact date will be announced soon).
Connect the Cozify HAN to the activated HAN port of your electricity meter. This will create a temporary WiFi network, through which the device can be added to your use in the app (step 3).
Log in to the Cozify HAN app using your email address. If you already have a Cozify user account, we recommend using the same email and your existing account to log in.
- Add Cozify HAN to the app by following the app's instructions. Make sure that the WiFi setting on your phone is enabled.
Usage & Additional Information
Learn more about Cozify HAN's features at en.cozify.fi/han
Connections
Wired Ethernet Connection
In addition to WiFi, HAN can be connected to your home network with a wired Ethernet cable.
External Wired WiFi Antenna
In addition to the standard WiFi antenna that comes with the device, Cozify HAN can be used with a wired WiFi antenna that is brought to the outside of the electrical cabinet to improve coverage.
USB-C Extra Power
Cozify HAN may require additional power depending on the circumstances. For this purpose, the device has a USB-C connection.
RJ-12 Cable
By connecting the device to an electricity meter with a HAN port, the device gets both a data connection and power.
Device Placement
Cozify HAN is an IP20-rated device that can also be placed in an outdoor closed electrical cabinet. HAN is designed to withstand Scandinavian conditions from -40ºC to 50ºC. For an outdoor electrical cabinet, it is recommended to use a wired Ethernet connection or an external WiFi antenna mounted to the outside surface f the electrical cabinet.
Cozify HAN LED light color indicators
The Cozify HAN device uses one RGB LED to show its current operating state. Temporary or urgent patterns can override the normal steady status color.
| LED indicator | Meaning | What to expect or do |
|---|---|---|
| Off | The device is off or LED output is disabled. | Check device power if this is unexpected. |
| Green pulse | Firmware is starting after power-on or reboot. | This should be temporary while startup completes. |
| Orange pulse | The device is looking for usable Ethernet or Wi-Fi connectivity. | Wait for it to connect. Check network configuration if it continues. |
| Dim Red (steady) | The local network is connected, but the cloud handshake has not succeeded. | Local APIs may still work. Check Internet access if cloud connectivity is required. |
| Red pulse | The device is attempting the cloud handshake. | This should normally change to steady green. |
| 1× Bright Red flash | The cloud service was unreachable or timed out. | Check Internet access, DNS, firewall, and service availability. |
| 2× Bright Red flashes | The cloud service returned an error or unexpected response. | Retry later and check service status or device logs. |
| 3× Bright Red flashes | Local cloud-client setup or resource allocation failed. | Reboot the device. Investigate logs if it repeats. |
| Dim Green (steady) | The cloud handshake succeeded and the device is fully online. | Normal online state. |
| Brief brighter Green flash | A cloud handshake just succeeded. | The LED returns to steady dim green. |
| 3× Bright Red flashes over the base color | Configured Wi-Fi failed or disconnected. Ethernet may still be connected. | Check Wi-Fi credentials, signal strength, and 2.4 GHz availability. |
| Cyan blink | The setup access point is available. | Connect to the setup AP to configure the device. |
| Cyan (steady) | A client is connected to the setup access point. | Setup can be performed through the connected client. |
| Brief Magenta flash | A meter reading was received. | This is normal and typically occurs around every 10 seconds. |
| Magenta flash → Bright Red | Meter data arrived, but handling the reading failed. | Check the HAN connection, meter activation, and device logs if it repeats. |
| Blue pulse | A firmware update is being installed. | Do not disconnect power. |
| Bright Blue (steady) | Firmware is staged and waiting for activation or reboot. | Activate the update or reboot when appropriate. |
| White blink | Factory reset is requested or being confirmed. | Release or follow the intended reset procedure. |
| Red, Green, Blue repeating cycle | A critical fault occurred. | Reboot the device and investigate logs or recovery options if it returns. |
| Orange → Red transition loop | A previous boot did not reach a stable state and the device is waiting in low-power recovery. | Press the device button once to continue booting. |
Recreating the Temporary WiFi Setup Network
When the device is powered on (via a USB-C cable or through the electricity meter’s HAN port using an RJ12 cable), briefly press the pinhole button on the side of the device (about 1 second) until the LED lights up blue (cyan). After this, the blue (cyan) LED will start blinking, and the device’s temporary pairing-mode Wi-Fi network will become available again.
Resetting the Device / Restoring Factory Settings
When the device is powered on (via the USB‑C cable or through the electricity meter’s HAN port), press the pin through the hole on the side of the device for more than 10 seconds until the LED starts flashing white. Release the button to reset the device.
Support
If you are facing issues while installing or using Cozify HAN - view the HAN technical troubleshooting document here
Visit the Cozify website or email us at support@cozify.fi for additional technical support.
User account deletion
If you wish to delete your user account, you can request it simply by emailing us from your user email to support@cozify.fi - we will reply back for confirmation, and delete your user account and its data without undue delay after receiving your requst, and at the latest within one month upon your confirmation.
What happens when my account is deleted?
Here’s what you can and can’t do after deleting your Cozify account (linked to this email address):
- You will no longer be able to access your profile.
- You’ll lose access to all devices and services, in addition to Cozify HAN, linked to your account.
- You won’t be able to access any purchased services. These will end according to their respective expiration times.