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Jennifer PearsonAug 7, 2025
Why is my MPPT SPT-10A Controller interface blinking?
- KKevin WangAug 7, 2025
The MPPT Controller interface might be blinking because of several reasons: battery voltage higher than over voltage disconnect voltage (OVD), battery under voltage, battery low voltage disconnect, overload, or short circuit. If the battery voltage is too high, disconnect the solar module. If the load output is normal, the charging LED indicator will return to green automatically when fully charged. In case of overload or short circuit, remove or reduce the load and press the button; the controller will resume to work after 3 seconds.