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Error code · Microwave

Maytag Microwave Code F3T1: User Interface Thermistor Circuit

F3T1 appears on Maytag over-the-range microwave and hood combinations. It points to the thermistor in the user interface, the temperature-sensing part behind the control panel, or to the wiring that connects it. The control is not…

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Code
F3T1
Appliance
Microwave
Brand
Maytag
Warranty
30-day workmanship

What F3T1 means

F3T1 appears on Maytag over-the-range microwave and hood combinations. It points to the thermistor in the user interface, the temperature-sensing part behind the control panel, or to the wiring that connects it. The control is not getting a clean temperature reading from that spot. You will see F3T1 in the display, and the microwave may refuse to run a heating cycle until the reading returns to normal.

Common causes of F3T1

  • The thermistor in the user interface and its readings
  • Wiring and connectors running to the control panel
  • How the control reacts after power is restored
✓ One safe check you can try

1. Switch off the circuit breaker that feeds the microwave and leave it off for one minute. 2. Switch the breaker back on. 3. Watch the display for a full minute to see whether F3T1 returns. 4. Run a short heating cycle with a cup of water to confirm the microwave works normally.

! Why to stop there
  • A reset clears the display but does not show whether the sensor or its wiring is the cause
  • We test the thermistor circuit before we quote any part
  • You get the price in writing before work, and our repair carries a 30-day workmanship warranty
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.
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Other Microwave codes

F8E5Maytag Microwave Code F8E5: Sensor in the Exhaust Air Path F9Maytag Microwave Code F9: Two Boards to Check F9Q or F9Q1Maytag Microwave Code F9Q or F9Q1: Reset and Function Failure FC E1, FC E2 or FC E3Maytag Microwave Code FC E1, FC E2 or FC E3: Wi-Fi Connection Lost FC E7Maytag Microwave Code FC E7: Microwave Cannot Reach the Router FC E8 or Registration ErrorMaytag Microwave Code FC E8 or Registration Error: Setup Entry Problem Flashing 0:00Maytag Countertop Microwave Code Flashing 0:00: Clock Reset After Power Loss Flashing Colon or PFMaytag Microwave Code Flashing Colon or PF: Power Loss Notice
F3T1F3T1 questions
Is it safe to use the microwave when F3T1 shows?

Do the breaker reset first. If the code stays away and food heats normally, light use is reasonable. If F3T1 returns, stop using it and let us check the sensor circuit.

Does F3T1 mean the whole control board is bad?

No. The code names the user interface thermistor or its wiring, which is a narrower area than the whole board. We test that circuit first so you are not paying for a larger repair than needed.

Will you repair an older over-the-range Maytag with F3T1?

Yes. Many of these microwaves are well past warranty and still in Houston kitchens. We quote the work in writing and tell you plainly if a repair is not worth it.

Book a visit

Still seeing F3T1?

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

(713) 936-6390