Maytag MDB8959SKZ 24" Top Control Smart Dishwasher with Third Level Rack F3E1 Error Fix: Thermistor/OWI Sensor Failure

Error code F3E1 on the Maytag MDB8959SKZ 24" Top Control Smart Dishwasher with Third Level Rack means: Thermistor/OWI Sensor Failure. The wash water temperature sensor or Optical Water Indicator sensor is reading out of range. Check wiring connections. Replace sensor.

The most successful fix is "Test and Replace the Thermistor or OWI Sensor" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. 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 Thermistor or OWI Sensor") is rated medium difficulty and takes about 45 minutes. Tools needed: Phillips screwdriver, Multimeter, Voltage tester.

DIY cost: $10-$20. Professional repair typically costs $130-$200. Many homeowners save money by trying the top-ranked community fix first.

The Maytag MDB8959SKZ 24" Top Control Smart Dishwasher with Third Level Rack has 8 other known error codes, including: BAD ODOR (Musty or Bad Odor), CLOUDY GLASSES (Cloudy or Spotted Glassware), DETERGENT NOT DISSOLVING (Detergent Not Dissolving), DISHES NOT CLEAN (Dishes Not Getting Clean), DOOR LATCH ISSUE (Door Will Not Latch Properly), and 3 more.

Error code F3E1 also appears on 8 other Maytag models: MDB4949SHZ 24" Front Control Built-In Dishwasher, MED6630HW 7.3 cu ft Electric Dryer with Extra Power, MER7700LZ 5.3 cu ft Smart Electric Range with Air Fry, MEW9630FZ 30" Smart Single Wall Oven with Air Fry, MGD6630HW 7.3 cu ft Gas Dryer with Extra Power, MGR7700LZ 5.0 cu ft Smart Gas Range with Air Fry, and 2 more. The fix may vary by model, so check each model's specific page for tailored repair steps.