A test between the breaker lugs, if one side is lost, would result in a 0 from the breaker. Needs to test each lug to ground/neutral. Testing error. May just need to trip and reset the breaker if that is the case.There is no return path to panel. His ground allowed the return path. He also tested the bus bar and got 230v, so assume he is testing accurately. But I could be wrong.
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