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Error code · Microwave

Whirlpool Over-the-Range Microwave with Error F4E9: Smart Pop Control

On a Whirlpool over-the-range microwave in the WMH31017HS, WMH32519HZ or WMH53521HZ group, F4E9 points to the Smart Pop control or its wiring. The brand lists it as a separate control on these models. The display shows…

Medium · inspection needed
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Code
F4E9
Appliance
Microwave
Brand
Whirlpool
Warranty
30-day workmanship

What F4E9 means

On a Whirlpool over-the-range microwave in the WMH31017HS, WMH32519HZ or WMH53521HZ group, F4E9 points to the Smart Pop control or its wiring. The brand lists it as a separate control on these models. The display shows the code, and the brand's guidance is a power reset with no failed part named. We read F4E9 as a control circuit to test, not as a confirmed bad board.

Common causes of F4E9

  • Smart Pop control
  • Wiring and connector for that control
  • Main control reading it
✓ One safe check you can try

1. At the panel, switch the microwave's breaker off and wait a minute. 2. Switch it on. 3. Keep checking the display for F4E9 during that minute. 4. If it is clear, run a short normal cycle. 5. If F4E9 reappears, leave the microwave unused and call us.

! Why to stop there
  • A reset restarts the control but cannot tell us whether the Smart Pop control or its wiring is the cause.
  • We check the control's connection and then the board itself.
  • The cost is put in writing for you ahead of the job.
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

F9Whirlpool OTR Microwave Error F9: Control and Relay Boards Registration ErrorWhirlpool Over-the-range Microwave "Registration Error": Network Checks F9 or F9E0Whirlpool Built-in Microwave Codes F9 and F9E0: Home Power Supply Sabbath, Sab, 5Ab, or 5A6Whirlpool Built-in Microwave Showing Sab or 5Ab: Sabbath Mode F9QWhirlpool Over-the-range Microwave with F9Q on the Display: Power Reset Code SEWhirlpool Over-the-range Microwave Error SE: Keypad Circuit F9Q1F9Q1 on a Whirlpool Over-the-Range Microwave: Touch Pad Circuit FC E1Whirlpool Over-the-range Microwave Wi-Fi Code FC E1: Weak Signal
F4E9F4E9 questions
What is the Smart Pop control?

It is a separate control listed for these over-the-range microwaves. F4E9 says the control sees a problem with it or its wiring. The code names the control, so we test it first.

Can I still use the other functions with F4E9?

Nothing in the guidance answers that. The control reports a problem, so if F4E9 returns after the reset, we suggest not using the microwave until it has been checked.

Is F4E9 related to the F4 E9 on built-ins?

No. F4 E9, with a space, is a built-in code for the microwave inverter. F4E9 is for over-the-range models and names the Smart Pop control.

Book a visit

Still seeing F4E9?

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

(713) 589-6107