Midea Microwave Error Codes

Complete Midea Microwave Guide

This guide explains all Midea Microwave error codes (CH series) with simple troubleshooting steps to help you identify and fix common issues safely before calling a technician.

E1
Door Switch Fault
  • Ensure microwave door closes completely.
  • Inspect latch hooks for wear or damage.
  • Check door switch wiring connections.
  • Replace faulty door switch assembly.
E10
Door Interlock Failure
  • Inspect interlock switch operation.
  • Check latch alignment.
  • Test switch continuity.
  • Replace defective interlock components.
E2
Overheat Protection Activated
  • Allow microwave to cool completely.
  • Ensure ventilation openings are clear.
  • Check cooling fan operation.
  • Restart unit after cooling period.
E11
Temperature Sensor Fault
  • Inspect sensor wiring harness.
  • Test thermistor resistance values.
  • Check connector terminals.
  • Replace faulty temperature sensor.
E3
Magnetron Failure
  • Inspect magnetron wiring connections.
  • Check high-voltage components.
  • Test magnetron continuity.
  • Replace magnetron if defective.
E12
Heating Circuit Failure
  • Inspect heating circuit wiring.
  • Check relay operation.
  • Test electrical continuity.
  • Replace damaged components.
E13
High Voltage System Fault
  • Disconnect power immediately.
  • Inspect capacitor and diode.
  • Check transformer connections.
  • Replace faulty high-voltage components.
E4
Main Control Board Error
  • Power cycle the microwave.
  • Inspect PCB for visible damage.
  • Check wiring harness connections.
  • Replace control board if necessary.
E5
EEPROM Memory Error
  • Reset microwave power.
  • Check PCB communication circuits.
  • Inspect board for moisture damage.
  • Replace PCB if error persists.
E14
Control Panel Communication Fault
  • Inspect ribbon cable connection.
  • Check user interface board.
  • Power cycle the appliance.
  • Replace UI panel if necessary.
E6
Humidity Sensor Fault
  • Inspect humidity sensor wiring.
  • Clean moisture buildup inside cavity.
  • Check connector terminals.
  • Replace sensor if defective.
E15
Cooking Sensor Failure
  • Check sensor connections.
  • Inspect wiring harness.
  • Reset microwave power.
  • Replace cooking sensor if faulty.
E7
Cooling Fan Motor Fault
  • Inspect cooling fan blades.
  • Remove debris or obstructions.
  • Check fan motor wiring.
  • Replace fan motor if not operating.
E16
Fan Speed Detection Error
  • Inspect fan speed sensor.
  • Check motor operation.
  • Verify control board signals.
  • Replace faulty fan assembly.
E8
Power Supply Voltage Error
  • Check household voltage supply.
  • Avoid using extension cords.
  • Inspect outlet condition.
  • Reset microwave after power stabilizes.
E17
Low Voltage Protection
  • Verify stable electrical supply.
  • Check breaker and outlet.
  • Wait for voltage recovery.
  • Restart microwave.
E9
Internal Communication Failure
  • Inspect communication wiring.
  • Check PCB connectors.
  • Reset appliance power.
  • Replace control board if needed.
E18
System Communication Timeout
  • Restart microwave.
  • Inspect internal connections.
  • Check control board operation.
  • Replace defective electronic module.

Frequently Asked Questions


Why is my Midea microwave not heating food?
This may be caused by a faulty magnetron, door switch issue, blown high-voltage component, or control board fault. Ensure the door closes properly and test with different cooking settings. Internal high-voltage repairs should only be performed by qualified technicians.
Why does my Midea microwave keep shutting off during cooking?
The microwave may be overheating due to blocked ventilation, a faulty cooling fan, or thermal protection activation. Allow the unit to cool, clean air vents, and ensure proper airflow around the appliance.
Why is my Midea microwave not turning on?
Check the power outlet, circuit breaker, and power cord. A blown internal fuse or control board problem may also prevent startup. Disconnect power for several minutes and try restarting the microwave.
Why does my Midea microwave display an error code?
Error codes indicate issues such as door switch faults, sensor failures, overheating, communication problems, or control board malfunctions. Refer to the displayed code and perform the recommended troubleshooting steps.
Why is my Midea microwave making unusual noises?
Unusual sounds may come from the cooling fan, turntable motor, magnetron, or loose internal components. Stop operation if noises become excessive and inspect for obstructions or damaged parts.
Why is the turntable not rotating in my Midea microwave?
Check that the glass tray is properly seated and free from obstruction. Inspect the turntable coupler and motor underneath the tray. Replace the turntable motor if it fails to rotate during cooking.
Why does my Midea microwave spark during operation?
Sparking may be caused by metal objects, damaged waveguide covers, food splatter, or interior cavity damage. Stop using the microwave immediately and inspect the interior for visible damage or contamination.
Why is my Midea microwave door not closing properly?
Inspect the door latch, hinges, and locking hooks for wear or damage. Remove debris around the door seal and ensure the door aligns correctly with the frame.
Why does my Midea microwave run but not cook food evenly?
Uneven cooking may result from turntable problems, incorrect food placement, sensor issues, or a weakening magnetron. Stir food during cooking and verify the turntable rotates normally.
Why is my Midea microwave overheating?
Overheating can occur when ventilation openings are blocked, cooling fans fail, or internal components operate under excessive load. Ensure proper clearance around the microwave and clean all ventilation areas.
Why does my Midea microwave stop when I close the door?
This may indicate a faulty door switch, loose door latch assembly, or control board issue. Inspect the door mechanism and verify that all safety switches operate correctly.
Why is my Midea microwave control panel not responding?
An unresponsive control panel may be caused by a locked control system, moisture intrusion, stuck buttons, or electronic control failure. Reset the microwave and inspect the keypad for damage.
Why does my Midea microwave trip the circuit breaker?
This may occur due to a short circuit, faulty capacitor, defective transformer, or overloaded electrical circuit. Disconnect power immediately and have the microwave inspected by a qualified technician.
How do I reset my Midea microwave?
Unplug the microwave or switch off the breaker for 5–10 minutes. Restore power and reprogram settings if necessary. This may clear temporary electronic faults and error messages.
Why do Midea microwave problems keep coming back?
Recurring issues often indicate failing sensors, cooling fan problems, door switch faults, control board damage, or high-voltage component failure. Professional diagnosis may be required to identify the root cause.
When should I call a technician for my Midea microwave?
Contact a qualified technician if the microwave repeatedly displays error codes, fails to heat, overheats, sparks, trips breakers, or shuts down unexpectedly. High-voltage microwave repairs should not be attempted without proper training.
Important: If your Midea microwave continues to malfunction after troubleshooting, disconnect power immediately and stop using the appliance. Persistent issues may indicate magnetron failure, high-voltage circuit faults, cooling fan problems, door safety switch defects, or control board damage. Continued operation may create electrical hazards, overheating risks, or further component failure. Contact an authorized Midea technician for proper inspection and repair.