Samsung Microwave Error Code E-62

E-62 on a Samsung microwave indicates a humidity sensor short circuit error. The microwave's control board has detected that the humidity sensor circuit is shorted, meaning it is reading abnormally low resistance instead of the expected variable signal. The two most likely sources of this fault are the humidity sensor itself or the smart board that processes the sensor input.

It is not recommended to continue using the microwave while E-62 is active. The humidity sensor is used by the microwave to regulate automatic cooking cycles, and a shorted sensor means that sensing function is not operating correctly. Running the unit in this state risks incorrect cooking behavior, and the underlying fault could indicate broader electrical issues with the control board.

Unplugging the microwave for a few minutes and restoring power may temporarily clear the E-62 code, but the error will return if the underlying short circuit in the humidity sensor circuit has not been resolved. A reset should be used only as a diagnostic step to confirm the fault is active and consistent, not as a permanent fix. The shorted component must be identified and repaired or replaced to permanently clear the code.

A knowledgeable DIYer can attempt diagnosis by unplugging the microwave, locating the humidity sensor, disconnecting it, and testing its resistance with a multimeter. If the sensor reads a dead short, replacing it is a straightforward parts swap. However, if the smart board is at fault, soldering skills or a full board replacement are required, and working inside a microwave involves high-voltage capacitors that retain a dangerous charge even after unplugging, so proper discharge procedures are essential before touching any internal components.

If the humidity sensor is the cause, the part typically costs in the range of $15 to $50 depending on the model, making it one of the more affordable repairs. If the smart board requires replacement, parts alone can range from $80 to $200 or more, and professional labor adds additional cost. Given these potential costs, comparing the repair cost to the value of the microwave before committing to a board replacement is worthwhile.