I wanted to find the breaker for directly wired (i.e. no plug + outlet) dishwasher by using a 'non-contact voltage tester' and it showed +ve for three different breakers. Then I hooked up a multimeter (V/AC setting) and tested. The reading for three breakers were 120V, 13.7V and 1.7V.
What could be the cause for the last two? Induction when wires run parallel? Insulation deterioration over time? Neutral is not at 0v? I suspected induction because when the last two breakers both on the voltage drops to 1.3V. However 13.7V seems too high, not that I know anything about what it should be.
The house is 37 years old, but probably it was rewired sometime later.