Question about Morningstar ProStar Charge Controller, 30A, 12/24 VDC, w/ LCD Monitor, PS-30M

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Red light flashing

ProStar 30 screen read LUD, with error 7, 9, 13, &voltage @7.2. All wire conn.are good, & test with voltmeter @batt. & lugs of controller reed 14.2 and also at batt. Charger

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