Dacor DMW2420S 24 in 1.2 cu ft 1000W Sensor Microwave Oven SE Error Fix: Humidity Sensor Error

Error code SE on the Dacor DMW2420S 24 in 1.2 cu ft 1000W Sensor Microwave Oven means: Humidity Sensor Error. The steam/humidity sensor is defective or not reading properly. The sensor monitors moisture levels during cooking to automatically adjust cook time. Press Stop/Clear and retry the sensor cooking function. If the error recurs, check the sensor wire harness for loose connections. The sensor is typically located inside the oven cavity near the top vent. Clean the sensor surface of grease or food residue. Replace the humidity sensor if it continues to give erroneous readings.

The most successful fix is "Replace the Humidity Sensor Assembly" (medium difficulty, ~45 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Replace the Humidity Sensor Assembly") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Needle-nose pliers, Multimeter.

DIY cost: $15-$25. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Dacor DMW2420S 24 in 1.2 cu ft 1000W Sensor Microwave Oven has 6 other known error codes, including: F1 (Open Temperature Sensor), F3 (Touchpad Short Circuit), MECH-LATCH (Door Latch Mechanism Broken), MECH-LIGHT (Interior Cavity Light Failure), MECH-SEAL (Door Seal Deterioration), and 1 more.