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Error code · Wall Oven

Maytag Wall Oven Code F4 E0: Inverter Circuit in the Microwave

The display code F4 E0 is found on Maytag wall ovens that have a microwave built in. It refers to the microwave inverter, the power supply that drives the microwave's magnetron, or to the wiring leading…

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Code
F4 E0
Appliance
Wall Oven
Brand
Maytag
Warranty
30-day workmanship

What F4 E0 means

The display code F4 E0 is found on Maytag wall ovens that have a microwave built in. It refers to the microwave inverter, the power supply that drives the microwave's magnetron, or to the wiring leading to it. The control detects that this circuit is not working as expected and reports the code. You will see F4 E0 on the display, and the microwave side may not heat food. The conventional oven section may still bake and roast, so test it before you assume the whole unit is down.

Common causes of F4 E0

  • The microwave inverter
  • Wiring and connectors to the inverter
  • The control that commands the microwave
✓ One safe check you can try

1. Cut power to the oven at its breaker and let a minute pass. 2. Restore power. 3. Stay near the display for a minute in case F4 E0 reappears. 4. If it does not, run a cup of water in the microwave for a short time, then bake something small in the main oven to compare.

! Why to stop there
  • The inverter is a high-voltage part, so we do not ask you to look inside the unit
  • A clean reset does not prove the inverter is healthy, because the code can return under load
  • We agree the cost with you in writing before we start, and we stand behind the labor 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.
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Other Wall Oven codes

Registration ErrorMaytag Wall Oven Message Registration Error: Connection Needed Temperature Reached Insert FoodMaytag Steam Wall Oven Message Temperature Reached Insert Food: Preheat Done 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
F4 E0F4 E0 questions
Do F4 E8 and F4 E9 mean the same as F4 E0?

They are close relatives. F4 E0 and F4 E8 or F4 E9 all lead to the microwave inverter circuit, so we start there for each. Read the exact code on your display, since the control may report them separately.

Can I still bake while F4 E0 shows?

Often yes, since the microwave and the conventional oven are different circuits. Try a short bake after the reset. If the oven also behaves oddly, tell us, because that changes where we look.

May I carry on with the microwave side?

When the code stays gone and food heats normally, that is a fair decision. If F4 E0 returns, stop using the microwave and let us test the inverter circuit.

Book a visit

Still seeing F4 E0?

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

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