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Error code · Microwave

Maytag Over-the-Range Microwave Code F3H1: Humidity Sensor for Sensor Cooking

F3H1 on a Maytag over-the-range microwave and hood combination points to the humidity sensor or its wiring. The humidity sensor tells the microwave how much steam comes off the food so that sensor cooking programs know…

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Code
F3H1
Appliance
Microwave
Brand
Maytag
Warranty
30-day workmanship

What F3H1 means

F3H1 on a Maytag over-the-range microwave and hood combination points to the humidity sensor or its wiring. The humidity sensor tells the microwave how much steam comes off the food so that sensor cooking programs know when to stop. You will see F3H1 in the display, and those programs may not work. Timed cooking may still work. We repair these hood microwaves, including older ones still in many Houston homes.

Common causes of F3H1

  • Humidity sensor
  • Wiring or connector to the sensor
  • Appliance control board input
✓ One safe check you can try

1. Leave the microwave breaker tripped off for a full minute. 2. Turn it back on. 3. Give it one minute and check that F3H1 does not reappear. 4. Verify operation with a short cup-of-water test. 5. Switch to timed cooking until the sensor has been checked.

! Why to stop there
  • F3H1 names the sensor and its wiring, but only a test shows whether either one is the actual problem.
  • We check the sensor circuit and the control before suggesting a part.
  • You see the written price before any work, and we tell you plainly when replacing an older microwave is smarter.
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 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
F3H1F3H1 questions
What does the humidity sensor do?

It senses steam from the food so sensor cooking programs know when to stop. F3H1 means the sensor, or its wiring, may have a problem.

Why are the sensor programs not working?

With F3H1 the control does not have a reliable steam reading, so those programs may stop or end early. Timed cooking does not depend on the humidity sensor, so the timer remains a good option.

Is an older microwave worth repairing?

Yes. For an older microwave we give a written price first and say plainly if replacing the unit makes more sense than repairing it, so you never pay for a repair that is not worth it.

Book a visit

Still seeing F3H1?

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

(713) 936-6390