GE Appliances Microwave Error Code F3

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: July 19, 2026

⚠ Medium Severity 👨‍🔧 Call a Pro

Shorted touchpad — keypad fault

The most common cause of the F3 error on a GE Appliances microwave is moisture or grease in the membrane keypad (~50% of cases); start with: dry it out.

💰 DIY cost: $0–$0 👨‍🔧 Pro cost: $130–$280 Save $130+ by doing it yourself

GE Appliances Microwave error code F3 on the display panel — How the F3 code appears on a GE Appliances microwave display

What Does Error Code F3 Mean on a GE Appliances Microwave?

Shorted touchpad — keypad fault.

The control board continuously scans the touchpad's row-and-column matrix. An F3 fires when it reads one or more of those lines as permanently closed — the electrical signature of a button held down that never releases. Unlike F1 or F2, which point to sensor or relay-side faults, F3 is specific to the keypad input circuit. Moisture or grease bridging the membrane traces (common above a range) creates a false continuous contact, mimicking a stuck key even when nothing is pressed.

Models affected: GE microwaves with membrane touchpad control panels, especially over-the-range models mounted above a cooktop; also countertop units using the same keypad-scan control design

What owners report: Owners commonly report this appearing after heavy stovetop steaming, boil-overs, or wiping the panel with a too-wet cloth, and it often clears once the panel dries fully. When specific buttons stay dead or phantom presses and beeping persist after drying and a reset, the membrane itself has usually failed.

What Causes Error Code F3?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

1

Moisture or grease in the membrane keypad 50% of cases
2

Worn/shorted keypad membrane 35% of cases
3

Control board fault 15% of cases

How to Fix GE Appliances Microwave Error Code F3

👨‍🔧 Call a Pro Est. time: 1–3 hours

⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.

1

Dry it out

If the code appeared after heavy stovetop steaming or panel cleaning, power off at the breaker for a few hours and let the panel dry.
2

Power-reset

Breaker off for 60 seconds, then retest each button row.
3

Replace the touchpad/control panel

If specific buttons stay dead or phantom presses continue, the membrane assembly needs replacement.

⚠️ Panel replacement requires case access — leave it to a technician.

How to Reset Error Code F3

Switch the breaker off for 60 seconds (longer if moisture is suspected — give it a few hours to dry), then restore power and test the keypad.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

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When to Call a Professional

On over-the-range models the touchpad assembly is usually worth replacing professionally; on budget countertop units the part plus labor often exceeds a new microwave.

Average professional repair cost for this issue: $130–$280

Related Error Codes

Open thermal sensor — cavity temperature not detected

⚠ Medium Severity

Shorted thermal sensor

⚠ Medium Severity

Same Code on Other Brands

Error code F3 appears on these other brands too. See every brand that shows F3 →

Samsung Microwave F-3

Touchpad/membrane failure

LG Oven F3

Oven temperature sensor short circuit

LG Microwave F-3

Temperature sensor error — over-temperature detected

Whirlpool Oven F3

Open oven temperature sensor — sensor circuit open

Find Replacement Parts

Use these links to find the exact replacement parts for your GE Appliances Microwave:

🔩

Search PartSelect

GE Appliances Microwave repair parts

🔧

Search RepairClinic

Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More GE Appliances Microwave Error Codes

F4 Open humidity sensor — sensor cooking disabled

Frequently Asked Questions

Can I keep using my GE Appliances Microwave when error F3 appears? +

You often can for a cycle or two, but the control-panel issue behind F3 will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.

What most commonly causes F3 on a GE Appliances Microwave? +

Across reported GE Appliances microwave repairs, the most frequent is moisture or grease in the membrane keypad (50% of cases), worn/shorted keypad membrane (35%), then control board fault (15%). Check them in that order before replacing any parts.

F3 keeps coming back after a reset — what should I check next? +

A reset only clears the stored F3 fault; if it returns, the control-panel problem is still present. Move on to the physical checks — dry it out, then power-reset — since the code will reappear until the root cause is resolved. This is a repair most owners hand to a technician.

How much does it cost to fix GE Appliances Microwave error F3? +

A DIY repair typically runs $0–$0 in parts, versus $130–$280 for a professional service call, so handling it yourself saves around $130. Expect the work to take a full service visit.

Which GE Appliances Microwave models show error F3? +

F3 is documented on GE microwaves with membrane touchpad control panels, especially over-the-range models mounted above a cooktop; also countertop units using the same keypad-scan control design. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

• GE Appliances Support — official manufacturer documentation
• Our editorial & verification policy

Content verified against manufacturer service documentation. Last verified: July 19, 2026.

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