Microwave Ovens Repair and Safety Service – MDTECH Technical Solutions

MDTECH Technical Services specializes in professional, licensed diagnostics and repair of all residential and light commercial microwave ovens, including countertop and combination wall/hood units. We serve the Greater Los Angeles and Orange County, California areas.

Microwave oven repair is a critical task due to the high-voltage components (magnetron, capacitor, transformer) that can store a lethal electrical charge even after the unit is unplugged. As C-20 licensed mechanical contractors, MDTECH provides certified electrical and mechanical expertise to perform safe, effective, and compliant repair services.

Technical Solutions for Common Microwave Failures

We address the core electrical, safety, and mechanical faults that prevent microwave ovens from operating correctly:

1. Heating Failure (The Magnetron Circuit)

• The Issue: The microwave runs (fan and light are on) but fails to heat food, or the heating is inconsistent.

   

• The MDTECH Fix: This indicates a failure in the high-voltage circuit. We safely test and replace the key components:

  • Magnetron: The main component that generates microwave energy.

     

  • High-Voltage Capacitor and Diode: These components regulate and multiply the voltage required by the magnetron.

     

  • Thermal Fuses: Checked for being blown due to overheating, which cuts power as a safety measure.

     

2. No Power or Intermittent Operation (Control/Safety System)

• The Issue: The unit is completely dead (no display or response), or it starts, runs briefly, and then stops.

• The MDTECH Fix: We diagnose issues with the main electrical and safety mechanisms:

  • Door Interlock Switches: We test and replace faulty door switches. The microwave will not heat or may stop mid-cycle if the safety interlocks signal that the door is not perfectly sealed.

     

  • Main Control Board/Fuse: We check for power surges or internal short circuits that may have damaged the main fuse or the electronic control board.

3. Mechanical and Noise Problems

• The Issue: The glass turntable does not spin, or the microwave emits loud buzzing, grinding, or scraping noises.

   

• The MDTECH Fix:

  • Turntable: We replace the turntable motor or the central drive coupling to ensure even heat distribution.

  • Noise: We identify the source, which can be a failing cooling fan, a loose stirrer motor, or the magnetron itself, and replace the worn or broken mechanical part.

MDTECH Safety and Licensing Assurance

Due to the extreme electrical hazard involved in microwave repair, it is critical that only qualified technicians handle internal components. Our C-20 licensing guarantees that all diagnostics, component replacement, and high-voltage circuit testing are performed by professionals adhering to strict safety standards, ensuring the unit is safe for continued use.

Call (310) 871-0323 today to schedule professional microwave ovens repair service in the Greater Los Angeles and Orange County areas.