Solar Inverter Warranty Guide: Avoid Costly Inverter Repairs
Your solar inverter warranty protects you from unexpected inverter failure, but certain actions or conditions can void your coverage. Knowing what to avoid can help you
Here's a breakdown of solar inverter warranties by major manufacturers: When you choose Enphase microinverters, you're backed by the Enphase warranty, which gives you 25 years of coverage—matching the lifespan of most solar panels. That means your entire solar system is protected long-term.
Some manufacturers offer extended warranties for an additional cost, but coverage varies. While a standard inverter warranty typically covers defects and failures, extended warranties may extend coverage for parts, but not always labor or service costs. Some manufacturers provide refurbished replacements instead of new units.
Usually, inverter manufacturers offer a standard warranty period of 10 years for string inverters, whereas module-level power electronics (MLPEs) like microinverters or power optimizers offer 25-year warranties. In the case of an extended warranty period, few manufacturers allow you to purchase extra warranty time for their products.
Unlike solar panel warranties, inverter product warranties are harder to compare apples-to-apples.
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