We have a <5 year old Maytag electric dryer that has recently started tripping the circuit breaker. It happens once, twice, or sometimes not at all each load. Aside from this issue the dryer seems to work fine - no odd noises; normal drying time; good, warm airflow at the vent outside. There aren't any kinks in the vent that I can see. I took off the front panel last weekend, and while there was a bit of lint to be vacuumed out, everything looked OK. No loose connections or missing insulation. Our house is roughly 20 years old. The dryer is connected to a 3-prong 240V outlet with a 30A breaker. The dryer is rated for 26A. Any ideas where to look?