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Whirlpool service — Whirlpool Microwave F3H1 Code

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Whirlpool Microwave F3H1 Code Humidity Sensor

Book a Repair (844) 968-2053
Daniel Reeves Written by Daniel Reeves 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 F3H1
Appliance Microwave
Content status Verified
Quick answer

Meaning of F3H1 and the reset sequence for Whirlpool over-the-range microwaves.

Model note: Whirlpool reuses codes across series and model years, so F3H1 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 Humidity Sensor or the associated wiring.

F3H1 appears when the microwave may have a problem related to the humidity sensor or its wiring.

Over-the-range microwaves show this code.

Clearing F3H1

Reset first: turn off the circuit breaker, or unplug the microwave, for one (1) minute. Restore power afterward at the breaker or the outlet. One (1) minute of watching shows whether the code shows up again. Check operation to wrap up.

If it comes back: A technician should look at the microwave when F3H1 will not go away; the manual says a qualified one.

Similar errors

Compare with F3H, which concerns the humidity thermistor. F3C covers the cavity temperature thermistor. Also see F3T1 (the user interface thermistor).

Microwave service in your metro area

Living in the Miami, New York, Houston, Los Angeles or San Diego metro area? Phone (844) 968-2053. Have the model number and F3H1 written down, along with what happened after the reset. More on oven and cooking appliance repair.

Source: Whirlpool Product Help: F3H1 – Error Code – 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.

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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.

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  1. Share the symptom Tell us the Whirlpool model and what’s going wrong.
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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.
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