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Fronius Warranties

Whatever the future may hold, with a Fronius product, PV system owners are well equipped to meet the requirements of tomorrow – and that’s a promise. A Fronius warranty is backed by a stable family-run business with over 25 years of experience in the solar sector, as well as the outstanding quality of our Fronius Support team.

Fronius products come with a two-year warranty. Simply register your product online in Fronius Solar.web to extend the warranty to up to 7 years*at no extra cost. If you want even more security, you can also purchase an additional warranty period.


Register your inverter in Solar.web to enjoy the following advantages:

  • Warranty coverage of up to 7 years* for registered products
  • Free overview of current PV system performance data in Fronius Solar.web
  • Regular information on newly available functions, accessories, compatible storage units and home automation solutions
  • Automatic updates

*Warranty terms and warranty incentives may differ depending on the country and region. Fronius accessories are excluded from product registration and come with a two-year warranty as standard. For detailed information, please refer to the warranty conditions.

Product registration in Solar.web

Following a quick and free registration process at , owners of a Fronius product can select an attractive warranty model, depending on their region, that perfectly matches their individual requirements.

The free product registration is extremely easy for the PV system owner:

  • Open the following page:
  • Don’t have a Solar.web account yet? Click “Login” and then “Register Now” to create a new Solar.web account
    Fill in the required fields and follow the steps to complete the account.
  • Already have an account? Log in to your Solar.web account
  • Open the “Product registration” menu item
  • Enter your serial number
  • Choose the installation date, your country and the relevant installer
  • Select the desired warranty model

The warranty certificate will then be available for download.

Got a question or perhaps something is not clear? For detailed information on how to register, please refer to our instructions or simply watch our registration video.


Following successful product registrations (within 30 months of dispatch from the Fronius factory), system owners can choose one of our attractive warranty models, free of charge.

Fronius products come with a two-year warranty period* as standard.

The inverter software must be regularly updated in order to operate the photovoltaic system. Continuous inverter software updates not only guarantee a low failure rate and better serviceability of the device, they also ensure optimal system performance. Regularly updating the Fronius GEN24 inverter software is therefore a prerequisite for making full use of the Fronius warranty services.

There are two ways of doing this:

  • Bring your PV system online** in Solar.web: If you choose this option, updates may be carried out automatically by Fronius. Fronius thereby reserves the right to carry out updates automatically .
  • Manual check and if necessary update of the inverter software every 3 months

**The prerequisite for this is the maintenance and provision of an Internet connection


The Fronius Warranty extends the standard two-year warranty by an additional five years. In the first two years, all material costs and servicing and transport charges are covered. In addition, system owners enjoy a further five years of warranty cover for the cost of materials, amounting to a total of seven years.

Fronius Warranty Plus

The Fronius Warranty Plus extends the standard two-year warranty by an additional three years. This model covers the material costs and servicing and transport charges over the entire five-year warranty period, for total peace of mind. This gives Fronius customers long-term, total peace of mind.


Reliability, a long service life and sustainability play a crucial role for PV system owners – just like they do for Fronius. 

Which is why we are offering you the opportunity to extend the warranty to up to 20 years. System owners thereby benefit from the unrivalled high-quality service of our Fronius Support team well into the future.


The Fronius Warranty Extension is a cost-effective way for system owners to protect themselves against risks. If a claim is made, Fronius will provide the relevant materials; the warranty holder does not have to pay for the replacement part.


The Fronius Warranty Extension Plus provides you with comprehensive coverage. If a claim is made, in addition to the material costs, we cover labor costs for removing and installing the replacement part as well as any transportation costs.

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