Have a dedicater 220v 20a circut break to a clothes dryer. The only work done but the electrician was a new main grounding wire and removed conduit and wiring in the basement. Now the breaker opens after 1 min of dryer use. Short problem, grounding problem or "all of a sudden breaker problem"? Would like to fix right the first time
Electrical Supplies - Gb Electrical - 100 Amp GE Load Center
Answers & Comments
Typically, a standard electric dryer is 30A 240V unless it is natural gas. If the wire is #10awg then you can put a 30A circuit breaker on it. If the wire is #12awg then you DO NOT want to put a larger circuit breaker on it or it over heat the wiring in the wall. If it was a short in the wiring the circuit breaker would trip immediately even with out the dryer plugged in. If it was a grounding problem the circuit breaker would not trip at all, it would just electrify the dryer chasis. It sounds like it is an over current problem, drawing more than 20 amps through the circuit breaker, or like the dryer has an internal problem that is causing the circuit breaker to trip.