Maytag Microwave Error Code E62

E62 means the control board has detected a shorted sensor circuit. The humidity or moisture sensor is sending an abnormal electrical signal, which causes the microwave to stop operating and display this code. The fault can be in the sensor itself, the wiring harness, or the PCB assembly.

No. When E62 is active, the microwave will not operate because the control board has shut down the unit in response to the sensor fault. Attempting to bypass or ignore the error is not advisable, as the sensor is part of the cooking control system and its failure means the microwave cannot regulate cook cycles correctly.

E62 can be caused by either. The first step is to test the sensor directly with a multimeter to determine whether it is actually shorted. If the sensor resistance is within spec, the PCB assembly is the likely cause. Testing the sensor before replacing the board avoids an unnecessary and more expensive repair.

Start by unplugging the microwave and locating the humidity sensor, then use a multimeter to check the sensor for a short circuit. Inspect the wiring harness for damage or moisture in the connector. If the sensor is shorted, replace it. If the sensor tests fine, the PCB assembly is the next component to replace. This repair involves working inside the microwave cabinet, so if you are not comfortable with appliance disassembly and electrical testing, a qualified technician is advisable.

If the humidity sensor is the cause, replacement sensors typically range from $20 to $60 for the part. A PCB assembly costs more, often between $80 and $200 depending on the model. Add $75 to $150 for labor if you use a technician. DIY repair is feasible for those comfortable with multimeter testing and appliance disassembly, and can keep total costs to just the part price.