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Mppt100/30D error code 20, locked, press up and down button no response, ask how to unlock

Mppt100/30D error code 20, locked, press up and down button no response, ask how to unlock

2021-09-01

Let the user try to disconnect PV, then Battery, then reconnect, and then restore factory Settings. It is recommended that the user do not set this parameter, because it may cause bulk charge time problems

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