Good news! Another video w/ Bert. He finds a breaker tripping periodically in the field and has reason to believe that it's a case of the breaker overheating. He explains how to diagnose and repair that type of situation.
If you find a point of high temperature in an electrical circuit, keep in mind that those are points of resistance. Those single points don't cause the entire circuit to overheat. However, undersized wires have higher temperatures over a length of space, and the heat is a bit more widespread. Overheating happens where the increased resistance is, but that doesn't increase the overall current of a circuit. The voltage drops, and there's less current overall in the entire circuit.
When a breaker trips periodically, Bert checks for poor connections due to loose or corroded connections. In those cases, the amp draw may be normal, but the wires will run hot, and the breaker will pick up heat. Bert removes the breaker and checks connection points; in this case, he notices discoloration on one side. That indicates a loose connection or a pitted contactor, both of which cause overheating and intermittent breaker tripping.
Only licensed electricians should do work on electrical components like breakers; the Kalos techs are licensed electricians and can do that type of work inside panels.
Read all the tech tips, take the quizzes, and find our handy calculators at www.hvacrschoo....
7 сен 2024
