The HE error on your Samsung Microwave means there’s a problem with the heating element or temperature sensor. This code indicates the microwave cannot heat food properly or is detecting abnormal temperature readings.

Error code HE
Meaning Heating Element or Temperature Sensor Failure
Severity High — Microwave cannot heat food and requires immediate repair
Time to fix 15–45 minutes
Tools needed Screwdriver, multimeter, insulated gloves

What the HE error means

The HE error code indicates your Samsung microwave has detected a malfunction in its heating system. This typically involves either the magnetron (the component that generates microwaves), the high-voltage diode, the temperature sensor, or associated wiring. When this error appears, the microwave will stop heating food to prevent potential damage or safety hazards.

Common causes

  • Failed magnetron that can no longer generate microwaves for heating
  • Defective high-voltage diode preventing proper power delivery to the magnetron
  • Faulty temperature sensor sending incorrect readings to the control board
  • Damaged or loose wiring connections in the high-voltage circuit
  • Failed high-voltage capacitor affecting the heating circuit
  • Malfunctioning control board misreading heating system signals

How to fix the HE error

  1. Perform a hard reset: Unplug the microwave from the wall outlet for 5 minutes, then plug it back in. This clears temporary electronic glitches that may trigger false error codes. Try running the microwave with a cup of water to test if the error persists.
  2. Check for proper ventilation: Ensure the microwave vents are not blocked by food debris, grease buildup, or obstructions. Clean all vents thoroughly and allow adequate clearance around the unit. Overheating due to poor ventilation can trigger the HE error.
  3. Inspect door switches and seals: Open and close the door firmly several times. Examine the door seal for damage and ensure it closes completely. Faulty door switches can prevent the heating system from operating properly and trigger error codes.
  4. Test the heating function: Place a microwave-safe cup with one cup of water inside and run on high for one minute. If the water doesn’t heat at all, the magnetron or high-voltage components likely need replacement. This requires professional service due to dangerous high-voltage capacitors.
  5. Contact Samsung service: If the error persists after basic troubleshooting, the issue likely involves internal high-voltage components. Do not attempt to disassemble the microwave yourself, as capacitors can retain lethal voltage even when unplugged. Schedule service with a qualified appliance technician.

FAQ

Can I still use my Samsung microwave with the HE error code?
No, you should not use the microwave when the HE error is displayed. The error indicates a heating system problem that prevents proper operation, and continued use could potentially damage other components or pose safety risks.

How much does it cost to repair a Samsung microwave HE error?
Professional repair costs typically range from $150 to $350 depending on the failed component. Magnetron replacement is usually $200–$350, while sensor or wiring repairs cost $150–$250. Given these costs, compare repair expenses against purchasing a new microwave if your unit is older than 5 years.

Is the HE error covered under Samsung warranty?
If your Samsung microwave is within the manufacturer’s warranty period (typically 1 year for parts and labor), the HE error repair should be covered. Check your purchase date and warranty documentation, then contact Samsung customer service at 1-800-726-7864 to schedule authorized warranty service.