Microwave Error Codes: What They Mean and How to Fix Them
If your microwave suddenly stops working and shows an error code, it’s signaling a problem that needs attention. While some issues are minor, others may require a professional technician to avoid safety risks. At Star Appliance Repair, we provide fast, reliable microwave repair services in Toronto and the GTA for all major brands.
Common Microwave Error Codes and Their Meanings
Error codes vary by brand, but these are the most common ones homeowners see:
- SE / 5E – Button or Keypad Error
This code usually appears on Samsung and LG microwaves.
Meaning: The touch panel or one of the buttons is stuck or malfunctioning.
Fix:
• Clean the keypad
• Unplug for 3–5 minutes
• If the code returns, the keypad or control board may need replacement
- F3 – Temperature Sensor Error
Common on Whirlpool and GE models.
Meaning: The microwave detected a problem with the temperature sensor.
Fix:
• Reset the microwave
• Ensure vents are not blocked
• This usually requires a technician to replace the sensor
- F1 – Control Board Failure
Meaning: The internal control board has shorted or is not communicating properly.
Fix:
• Try a hard reset
• If it persists, the control board typically needs repair or replacement
- H97 / H98 / H99 – Inverter or High Voltage Error
Frequently seen on Panasonic microwaves.
Meaning: There’s an issue with the magnetron, inverter, or high-voltage components.
Fix:
Do not attempt to repair this yourself.
These parts store extremely high voltage even when unplugged. A certified technician is required.
- E-21 / E-22 – Sensor Error
Seen on modern sensor-operated microwaves.
Meaning: The humidity or cooking sensor is defective.
Fix:
• Clean interior steam sensors
• Avoid using the microwave when heavily steamy
• If the error repeats, the sensor needs to be replaced
- Door Error (dE / Err)
Meaning: Door latch is not closing correctly or the door switch is faulty.
Fix:
• Clean the door and latch
• Ensure nothing blocks the closure
• Persistent door errors usually need switch replacement
What To Do When Your Microwave Shows an Error Code
1. Unplug the microwave for a few minutes to reset it
2. Check the manual if you have it
3. Avoid opening the microwave casing — it’s dangerous
4. Call a professional if the code doesn’t disappear
Most microwave repairs involve high-voltage components, which are unsafe for DIY fixes.
Professional Microwave Repair in Toronto
If your microwave keeps showing an error code or stops heating, our certified technicians can diagnose the issue quickly and safely.
At Star Appliance Repair, we service all major microwave brands, including Samsung, LG, Whirlpool, GE, and Frigidaire.
Contact us or call us at (647)-847-8774 for expert service.
We’ll restore your appliance safely and efficiently.
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