I have acquired a TM500A for a popular price (free), but with the proper Deltec 500A/50mV shunt, it constantly reports +200A or more going into the batteries (even when the charge controller is sleeping), so there is something wrong somewhere. A DVM reading of the voltage drop on the shunt shows expected +/- values otherwise, so I am assuming the TM500A itself has something wrong. Is there any tech support/repair available for this thing anymore? I am having trouble finding anything online.
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