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Error code · Wall Oven

Maytag Wall Oven Code F4 E2: Microwave Thermistor to Manager Board Link

F4 E2 shows on Maytag built-in wall ovens that have a built-in microwave. It points to the microwave sensor or thermistor, to the microwave appliance manager board, or to the wiring between them. The control is…

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Code
F4 E2
Appliance
Wall Oven
Brand
Maytag
Warranty
30-day workmanship

What F4 E2 means

F4 E2 shows on Maytag built-in wall ovens that have a built-in microwave. It points to the microwave sensor or thermistor, to the microwave appliance manager board, or to the wiring between them. The control is not getting a normal reading from the microwave's sensing circuit. You will see F4 E2 on the display, and the microwave may refuse to run. The regular oven cavity, being a separate system, may still heat food in the usual way.

Common causes of F4 E2

  • The microwave sensor or thermistor
  • The microwave appliance manager board
  • Connectors and wiring in between
✓ One safe check you can try

1. Turn off the oven's breaker and wait one full minute. 2. Turn the breaker back on. 3. Look at the display for one minute. 4. If F4 E2 does not come back, heat a cup of water in the microwave for a short time and confirm the oven bakes as normal too.

! Why to stop there
  • The same code can come from a sensor, a board or a loose wire, so a reset only tells us whether the problem is constant
  • We test the circuit in steps rather than replacing a board first
  • We write the estimate down first, then back the finished repair for 30 days
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 Wall Oven codes

F8 E3Maytag Wall Oven Code F8 E3: Oven Cooling Fan, Wiring and Control F8 E4, F8 E5Maytag Wall Oven Codes F8 E4 and F8 E5: Exhaust Fan Air Temperature Sensor F9 or F9 E0Maytag Wall Oven Code F9 or F9 E0: Supply Wiring Polarity Code shown as "F" and a number, beeping (older wall ovens)Maytag Older Wall Oven Code F With a Number and Beeping: Cancel, Then Power Down FC E1, FC E2, FC E3Maytag Wall Oven Codes FC E1, FC E2 and FC E3: Cannot Reach the Router FC E4, FC E5Maytag Wall Oven Codes FC E4 and FC E5: Wi-Fi Antenna Check FC E6, FC E9Maytag Wall Oven Codes FC E6 or FC E9: Wi-Fi Power Module FC E7Maytag Wall Oven Code FC E7: No Link to Your Router
F4 E2F4 E2 questions
What separates F4 E2 from F4 E1?

Both name a thermistor and an appliance manager. F4 E1 does not specify the microwave in its description, while F4 E2 names the microwave sensor and microwave manager. We still check each circuit directly.

Can the oven still be used for baking?

Frequently, yes. Try a quick bake to see. If the display keeps showing F4 E2 even in conventional mode, stop and call us, since the control may be affected more broadly.

Do I need to open the oven to look at the sensor?

No, and please do not. The sensor sits inside the microwave section and connects to boards that need testing with the right meter. Leave that to us.

Book a visit

Still seeing F4 E2?

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

(713) 936-6390