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Maintenance and support
Describe the fault precisely, so the technician arrives with what is needed.
Prepare before sending
- Inverter model, a photo of the screen and the error code.
- When the problem began, and whether output changed gradually or suddenly.
- The last panel cleaning.
- Two bills from before and after the problem, if available.
For safety: do not open the distribution board or panel connections. Panel voltage is present whenever there is sunlight, even with breakers off.
Is output below expectations?
Dust is a common cause, and its effect varies by site. Compare your output with the calculator estimate, then send inverter data.
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