Sauna controller does not establish network connection

• If the controller of the UKU 4G sauna control system does not establish a network connection within 30 minutes after linking it to the user account of the mobile app, send an email to and provide a screenshot of the error log (“Menu” > “GSM status” > “log”).
• If the controller of the UKU Wi-Fi sauna control system does not establish a network connection, save a screenshot of the error log that is displayed after pressing “Connect” and email it to us at .

We’ll respond at the earliest convenience!