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Error code · Wall Oven

Maytag Wall Oven Code F4 E6: Microwave Wave Guide Temperature Sensor

F4 E6 refers to the microwave wave guide temperature sensor on Maytag built-in wall ovens with a microwave. The wave guide is the channel that carries microwave energy from the magnetron into the cavity, and the…

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Code
F4 E6
Appliance
Wall Oven
Brand
Maytag
Warranty
30-day workmanship

What F4 E6 means

F4 E6 refers to the microwave wave guide temperature sensor on Maytag built-in wall ovens with a microwave. The wave guide is the channel that carries microwave energy from the magnetron into the cavity, and the sensor watches its temperature. The code can also involve the wiring serving the sensor. When the control gets no usable reading, it shows F4 E6, and the microwave function may stop. This is a protective check, so the oven is cautious about running the microwave without it.

Common causes of F4 E6

  • The wave guide temperature sensor
  • Its wiring and connector
  • The control reading the sensor
✓ One safe check you can try

1. Switch the circuit breaker for the oven off, then wait one minute. 2. Switch it on again. 3. Look at the display for about a minute for another F4 E6. 4. If the code stays clear, run the microwave briefly with a cup of water, and let the oven rest if it was in long use before.

! Why to stop there
  • The wave guide sits behind the cavity wall, so there is nothing for you to inspect safely
  • Heat can make a weak connection fail only after a long cycle, so we test with the oven warm
  • Our estimate is written before we begin, and the repair has 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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F4 E6F4 E6 questions
What is a wave guide?

It is a metal channel that carries microwave energy from the part that makes it into the cooking cavity. The sensor on it keeps track of its temperature so the control can shut things down if needed.

Does F4 E6 mean the microwave is overheating?

Not necessarily. The code says the sensor reading is a problem, not that the temperature is high. If the oven smells hot or burnt, stop using it and call us.

Will it affect baking?

Usually the conventional oven is a separate system and keeps working. Confirm with a short bake. If baking is also off, tell us when you call so we plan the right tests.

Book a visit

Still seeing F4 E6?

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

(713) 936-6390