Answer
Aug 15, 2023 - 02:36 PM
The unit works on a duty cycle and changes from positive to negative throughout the day. It would be atypical to not switch to the other polarity at some point. I would recommend checking it several times throughout the day to be sure. If you are sure that it is never changing to the positive polarity then the unit may need a replacement circuit board and we would recommend sending it in for repair. You can call us to get a return authorization and send it in. 888-206-9938
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