Samsung Microwave Error Code E-83

E-83 indicates a communication error between the main PCB and the sub PCB inside the microwave. The two control boards have lost their data connection, causing the unit to stop operating. This fault is typically traced to the wire harnesses connecting the two boards, specifically wire harness-C and wire harness-D.

No, the microwave will not operate normally when E-83 is active, as it indicates a failure in the internal control communication. Attempting to use the appliance in this condition is not recommended. Power off the unit and leave it unplugged until the fault is diagnosed and repaired.

Repair costs vary depending on the root cause. If the fix involves only reseating a loose harness connector, the labor cost at a service center could range from roughly 50 to 100 dollars. If a wire harness needs replacement, costs may rise to 100 to 200 dollars including parts and labor. Replacing a main PCB or sub PCB can bring total repair costs to 150 to 350 dollars or more depending on parts availability and labor rates in your area.

If you are comfortable working with electronics and understand the risks of stored high-voltage capacitors inside microwaves, you can inspect the wire harness connections as a first step. Reseating a loose connector on wire harness-C or harness-D may resolve the error without any parts. However, if a harness is damaged or a control board needs replacement, most homeowners should contact a qualified technician.

Unplugging the microwave for a few minutes and restoring power may temporarily clear the display, but the E-83 code will return if the underlying wiring or board fault is still present. A reset does not repair a loose connector, damaged harness, or failed PCB. Clearing the error requires physically resolving the communication fault.