Boiler not full/found - Error 39
In case your TCN Coffee Machine cannot find the boiler or reports that it is not full.
Step 1: Error 39
The screen displays Error Code 39.
Step 2: Admin Menu via Password
Enter your password to access the Admin Menu. Then click on "Debug".
Step 3: Boiler Setup
In this image, the boiler is already functional and calibrated. Usually, you will see a button labeled "Boiler fill up" here – click on it to set up and fill the boiler.