How to Spot a Failing Microwave PCB Before It’s Too Late
When your microwave begins to malfunction, it’s easy to assume that a blown fuse or a faulty door switch is the culprit. But one of the most overlooked—and most critical—components is the microwave PCB (printed circuit board). Acting as the control center of the appliance, the PCB is responsible for coordinating all major functions, from timing and heating to display operations. When this vital board begins to fail, the microwave's performance quickly deteriorates. In this article, we'll explore the most common warning signs of a failing microwave PCB, what causes these issues, and how to take action before complete failure occurs. What Is a Microwave PCB and Why Is It Important? A microwave PCB (printed circuit board) is the brain of the appliance. It houses the electrical circuits that control how and when the microwave functions. From receiving commands from the control panel to activating the magnetron and managing timers, the PCB coordinates every action. In home applia...