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Error code · Dishwasher

Maytag Dishwasher Code F3E2: Thermistor or OWI Sensor

F3E2 on Maytag built-in dishwashers with electronic control is described as a problem with the thermistor or the OWI sensor. The thermistor reads water temperature, and the OWI sensor, which senses the condition of the water,…

Medium · inspection needed
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Code
F3E2
Appliance
Dishwasher
Brand
Maytag
Warranty
30-day workmanship

What F3E2 means

F3E2 on Maytag built-in dishwashers with electronic control is described as a problem with the thermistor or the OWI sensor. The thermistor reads water temperature, and the OWI sensor, which senses the condition of the water, helps the control manage the cycle. When either reading falls outside what the control expects, the code appears, often with three flashes, a pause, and two flashes. Cycles may run oddly or stop.

Common causes of F3E2

  • Thermistor reading outside range
  • OWI sensor reading outside range
  • Connection to the sensor
  • Control board, only after the sensors test good
✓ One safe check you can try

1. Turn the dishwasher's breaker off for 30 seconds if hard wired, or disconnect its power for 30 seconds. 2. Restore power. 3. Run a short cycle and watch for the code. 4. If F3E2 returns, schedule service, and note whether the dishes were hot at the end of the cycle.

! Why to stop there
  • The reset shows whether the sensor reading recovers
  • We test the sensor and its connection before the control
  • We compare the sensor's reading with a known temperature to see which side is wrong
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
→Same appliance

Other Dishwasher codes

F8E1 (blink pattern 8-1)Maytag Dishwasher Code F8E1 (Blink Pattern 8-1): Dishwasher Sees No Water F8E2Maytag Dishwasher Code F8E2: Fill Valve Electrical F8E4Maytag Dishwasher Code F8E4: Check the Supply Connections F8E5Maytag Dishwasher Code F8E5: Fill Valve Stuck Open, Shut Off the Water F9E1Maytag Dishwasher Code F9E1: Slow to Drain F9E2Maytag Dishwasher Code F9E2: Drain Motor FAE4 or F10E4Maytag Dishwasher Codes FAE4 and F10E4: Diverter Valve FAE5 or F10E5Maytag Dishwasher Codes FAE5 and F10E5: Leak at the Diverter
F3E2F3E2 questions
What does the thermistor do?

It measures water temperature so the control can manage heating and the cycle. If its reading looks wrong or does not change when it should, the control reports F3E2 and may stop the cycle.

Is F3E2 related to hot water supply?

Not directly. It is about the dishwasher's own sensors, though we check inlet conditions as well when we test the circuit, so a weak hot supply does not get missed.

Does a new sensor always fix it?

Not always. We test the connection and the control as well, so the part we replace is the one that actually causes the code, and nothing gets swapped on a guess.

Book a visit

Still seeing F3E2?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 936-6390