How do you fix reverse polarity, to fix reverse polarity you need to correct wiring so positive connects to positive and negative to negative, or hot to hot and neutral to neutral, with safety first turning off power. Steps to fix reverse polarity include turn off power at breaker, use outlet tester or multimeter to confirm reverse polarity, identify where reversal occurred, whether at outlet, switch, or panel. For outlet with reversed polarity, remove outlet cover, unscrew outlet, pull out, note that black hot wire should go to brass gold screw, white neutral to silver screw, ground bare to green screw, if reversed swap them correctly, push back and secure, turn power on and test with tester showing correct polarity. For DC circuit like LED or battery, swap positive and negative leads to correct polarity, ensure anode to positive and cathode to negative. For vehicle or battery charger with reverse polarity, disconnect and reconnect correctly positive to positive. If unsure or whole circuit reversed, call licensed electrician to trace and fix, as incorrect fix can cause hazard. So how do you fix reverse polarity, you fix by turning off power, identifying reversed wires, swapping to correct terminals, testing to confirm correct polarity, ensuring safety.
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