Samsung Microwave E-62 Error — What It Means
The E-62 code on a Samsung microwave indicates a short humidity sensor error detected by the control board’s sensor circuit. The humidity sensor monitors internal moisture levels during cooking, and when the control detects a short in that circuit, it throws E-62 and stops operation. Samsung’s official guidance is to perform a power reset first. If the code reappears after the reset, the unit requires service to diagnose and replace the failed component.
Common Causes
- Failed humidity sensor The sensor itself has shorted internally or degraded, sending incorrect signals to the control board.
- Damaged or pinched sensor wiring The wire harness connecting the sensor to the main board is cut, pinched, or has insulation damage causing a short to ground or between conductors.
- Corroded or contaminated sensor connector Moisture, grease, or food debris on the sensor terminals or connector pins creates a conductive path that the board reads as a short.
- Faulty main control board The circuit that interprets the sensor input on the control board has failed, incorrectly reporting a short even when the sensor and wiring are good.
Step-by-Step Fix
- Disconnect power by unplugging the microwave or switching off the dedicated circuit breaker for at least 60 seconds to clear the fault from memory.
- Restore power and test by running a short cycle to see if E-62 returns. If the code does not reappear, the issue was a transient glitch and no further repair is needed at this time.
- Unplug again and remove the outer cabinet by taking out the screws around the perimeter and lifting or sliding the cover off to expose the internal components and wiring.
- Locate the humidity sensor (a small cylindrical or rectangular probe usually mounted near the cavity or vent area) and trace its wiring harness back to the main control board connector.
- Inspect the sensor wiring and connector for visible damage, pinched insulation, corrosion, or contamination. Disconnect the sensor plug and clean terminals with electrical contact cleaner if any residue is present.
- Check for a short using a multimeter set to continuity or resistance mode. With the sensor disconnected, measure between each sensor wire and ground, and between the two sensor leads. A near-zero reading to ground indicates a wiring short. Consult your model’s service data for normal sensor resistance if available.
- Replace the humidity sensor if the wiring tests good but E-62 persists. If the new sensor does not clear the code, replace the main control board as the next step.
Parts Often Needed
| Part | Notes |
|---|---|
| Humidity sensor | Amazon | Match the part number from your model’s service label or Samsung parts lookup to make sure correct sensor type and connector. |
| Sensor wiring harness | Amazon | Order if the original harness is cut, melted, or has damaged insulation that cannot be safely repaired. |
| Main control board (PCB) | Amazon | Replace if the sensor and wiring are verified good but E-62 continues. Confirm the board part number for your exact microwave model. |
When to Call a Pro
Call a qualified appliance technician if you are uncomfortable working inside the microwave cabinet or handling high-voltage components. Microwaves retain high voltage in the capacitor even when unplugged, and only trained personnel with proper discharge tools should work near the magnetron and power circuits. If you have replaced the humidity sensor and inspected the wiring but E-62 still appears, a technician with a service manual and voltage measurements can pinpoint whether the control board or another circuit component is at fault.