When the PIN-code to access an inverter is no longer available, you need a security code called PUK-code to generate a new password. Now, for inverters with firmware inferior to 4.xx, you can easily obtain a PUK-code 24/7 and free of charge through the SMA Online Service Center. Make sure the latest firmware is installed on the inverter. For inverters with a firmware superior to 4.xx, the existing procedure called PUK 2.0 remains unchanged.
How to obtain a PUK-code for inverters with a firmware inferior to 4.xx:
- Log into the SMA Online Service Center or create an account if you don’t have one.
- Select ‘Self Help’ from the top menu.
- Click on ‘PUK - Personal Unblocking Key’ in the drop-down menu.
- Enter the serial number of the device.
- You will receive the PUK-code immediately.
Note: PUK generation in the Online Service Center is currently limited to installers for devices with firmware versions below 4.x. Registered PV plant owners do not have access to this service yet, but it will be available soon. In the meantime, PV plant owners should contact their installer or submit a support request through our Online Service Center to obtain their PUK.
Are you new to the SMA Online Service Center? Watch this Video.
If necessary refer article Generate PUK 2.0 Product Key for SMA Devices.
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