Whirlpool Whirlpool WMH53521HZ 2.1 cu. ft. Over-the-Range Microwave SE Error Fix: Sensor Error

Error code SE on the Whirlpool Whirlpool WMH53521HZ 2.1 cu. ft. Over-the-Range Microwave means: Sensor Error. A generic sensor error on Whirlpool microwaves. This typically refers to the humidity sensor but can indicate other sensors. Try unplugging the microwave for 5 minutes to reset. If SE returns, the sensor(s) need testing or replacement. On over-the-range models, the steam sensor on top of the unit can be affected by cooking steam — clean around the sensor.

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

This error is rated warning severity. It is generally not urgent and can often be resolved with a simple DIY fix.

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

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

The Whirlpool Whirlpool WMH53521HZ 2.1 cu. ft. Over-the-Range Microwave has 8 other known error codes, including: F1E1 (Control Board Memory Error), F1E2 (Touchpad Error), F2E0 (Keypad Shorted), F3E0 (Humidity Sensor Fault), F3E1 (Oven Temperature Sensor Open), and 3 more.

Error code SE also appears on 1 other Whirlpool model: Whirlpool WMH31017HZ 1.7 cu. ft. Over-the-Range Microwave. The fix may vary by model, so check each model's specific page for tailored repair steps.