The general rule I follow (and this applies to the circuit breakers in the cockpit when I'm flying, too) is that, if a breaker trips, go ahead and reset it once. If it stays on, it was just a transient surge and nothing to worry about (they do happen from time to time). If it trips again, leave it off and have someone check it out (an electrician at home, a certified mechanic for the plane). But don't keep resetting it or you risk a fire.