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MPP Solar 10k hybrid inverter repair


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Got a defective MPP Solar 10k hybrid inverter (aka Infini 10k) for good price. Me, as a electronics technician, I guess I should be able to get it working again.

AC and battery connection power up the device - solar strings unfortunately not. No fault message in the display and even SolarPower not pointing to any defect. I checked the DC switch, but no problem - off course (too simple).
Unfortunately there are so many boards installed on the lower side that seems to be responsible for the inverter part, so at least a service manual roughly describing the functionality of each of them would be very helpful. Off course schematics would be awesome - but I don't dare to ask 🙂

Someone here, that can share his experience with repairing this kind of devices?

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