Free activation (Smart Warranty)

The free warranty (Smart Warranty), which can be activated by the system operator or installer within the first 6 months after initial commissioning, is available for the following KOSTAL products:

  • KOSTAL inverters
  • KOSTAL wallbox (ENECTOR)

The Smart Warranty covers all components (material warranty) of the KOSTAL product as well as transport and exchange fixed sums for the first 5 years from the date of initial commissioning.

Very simple - activate the warranty in just 3 steps (Smart Warranty):

Step 1: Log in to your user account
Step 2: Enter system and location data
Step 3: Activate warranty

New: From the date of initial commissioning 1/04/2022, the Smart Warranty plus extends the material warranty to a total of 10 years for all inverters up to 20 kW from the 6th year of operation.

Important: In order to benefit from Smart Warranty plus, you will need to register on the KOSTAL Solar Portal. The portal is used to visualise and monitor your solar system and allows you to use our KOSTAL Solar App. You need a separate login for this.

Done - you will receive the warranty certificate immediately by e-mail (for specialist companies to forward to their customers).

All information about the Smart Warranty can be downloaded here (PDF).

You can find our service and warranty conditions, including the applicable exchange fixed sums, in the download area on our homepage.