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Whirlpool Microwave F4E9 Error Code

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Maya Ortiz Written by Maya Ortiz Appliance Repair Content Specialist Published October 20, 2026

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Code overview at a glance.

The facts for this Whirlpool error, a plain-language snapshot, and what to confirm against your model number.

Error code F4E9
Appliance Microwave
Quick answer

F4E9 indicates a possible Smart Pop Control or wiring problem. The manual lists a one-minute breaker reset.

Model note: Whirlpool reuses codes across series and model years, so F4E9 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

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What this code may mean.

A plain-language reading of the code — always confirm against your model’s documentation.

There may be a problem with the Smart Pop Control or the associated wiring.

If your Whirlpool over-the-range microwave displays F4E9, the Smart Pop Control or its wiring may have a problem. The manual starts you with a power reset and nothing more.

Four steps from the manual

  1. Turn the breaker off for one minute.
  2. Turn it on again.
  3. Watch the microwave for a minute so you can tell whether F4E9 is back.
  4. Check that the microwave operates.

Other codes in this family

For comparison, F6 mentions the Relay Control Board and F4E4 covers the Humidity Thermistor.

Microwave service in Los Angeles for Whirlpool owners

When F4E9 stays on the display, call (310) 448-6692 and ask about Whirlpool microwave service in Los Angeles. Mention the code, the model number and the reset you performed. The microwave repair page has the overview.

Source: Product Help: F4E9 Over-the-Range Microwave

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Safety warning before you continue.

Stop immediately if you notice smoke, sparks, a burning smell, gas odor, or water near electrical parts.

Important

Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.

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Seeing this code on your appliance?

Book an Whirlpool appliance service visit for a clear estimate and approval before any repair.

Experienced technicians, clear diagnostics, and workmanship coverage on completed repairs.

Book a Repair (310) 448-6692

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Tell us what’s wrong — we’ll take it from there.

Share a few details and we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.

Prefer to call? (310) 448-6692
  1. Share the symptom Tell us the Whirlpool model and what’s going wrong.
  2. Confirm a window We’ll schedule a visit that fits your day.
  3. Approve before work You get a clear estimate — nothing starts without your OK.
Phone (310) 448-6692
Email info@whirlpoollosangeles.support
Hours Mon–Sat: 8:00 AM – 7:00 PM
Service area Serving Los Angeles County and Orange County.
Response time Appointment timing depends on ZIP code, route capacity, and appliance type.
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