Skip to content
Appointment timing depends on ZIP code, route capacity, and appliance type.
Whirlpool kitchen and laundry repair. Clear estimates before any work begins.
Call (844) 968-2053
Whirlpool service — Whirlpool Microwave F4E1 Error Code

Whirlpool

Whirlpool Microwave F4E1 Error Code Cavity Thermistor

Book a Repair (844) 968-2053
Daniel Reeves Written by Daniel Reeves Appliance Repair Content Specialist Published October 20, 2026

Whirlpool

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 F4E1
Appliance Microwave
Content status Verified
Quick answer

F4E1: possible Cavity Temperature Thermistor or wiring problem on over-the-range microwaves; try a one-minute power reset.

Model note: Whirlpool reuses codes across series and model years, so F4E1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Whirlpool

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 Cavity Temperature Thermistor or the associated wiring.

What F4E1 tells you

Over-the-range Whirlpool microwaves use F4E1 to report a possible fault in the Cavity Temperature Thermistor or in its wiring. A technician is the one who checks those parts.

Steps from the manual

  1. Switch off the breaker (or pull the plug) for 1 minute.
  2. Restore power.
  3. Watch the microwave for a minute; the code should not show again.
  4. Try a normal cooking cycle to verify operation.

Nearby codes

Seeing a different display? F4E9 relates to the Smart Pop Control, and F3T2 names the Convection Thermistor.

Microwave service for the Miami, New York, Houston, Los Angeles and San Diego areas

A returning F4E1 is a reason to phone (844) 968-2053 about service in the Miami, New York, Houston, Los Angeles and San Diego metro areas. Tell the dispatcher the code, your model number and what you changed during the reset. Related work is described under oven repair.

Source: Product Help: F4E1 Over-the-Range Microwave

Whirlpool

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.

Whirlpool

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 (844) 968-2053

Whirlpool

Ready to restore your Whirlpool appliance?

Book a repair online or call us — clear estimates, approval before any work, and a workmanship warranty on completed repairs.

Book a Repair (844) 968-2053

Whirlpool

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? (844) 968-2053
  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 (844) 968-2053
Email info@whirlpoolservicecenter.support
Hours Mon–Sat: 8:00 AM – 7:00 PM
Service area Serving Miami, New York, Houston, Los Angeles and San Diego metro areas.
Response time Appointment timing depends on ZIP code, route capacity, and appliance type.
(844) 968-2053 Book a Repair