John R Cincinnati , OH May 12, 2017 Se code on samsung microwave I had once fixed the problem by drying out the connections. That lasted about 6 months but when we boiled some water without the fan on the "SE" code struck again. I replaced the keypad - very simple, it takes 10 minutes - and it has been working fine since. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes