Ge Microwave Error F3

⚡ Quick Answer: The GE microwave F3 error indicates a malfunction in the keypad or control circuitry, often resulting in the microwave failing to start or respond to ... ⚠️ Difficulty Varies

What Does Error F3 Mean?

The GE microwave F3 error indicates a malfunction in the keypad or control circuitry, often resulting in the microwave failing to start or respond to keypad inputs. This error can occur during operation or immediately upon power-up, and may signal a short in the keypad/membrane circuit or an issue with the control board communication.

Common Symptoms:

  • F3 displayed on control panel
  • Microwave refuses to start or respond to keypad input
  • Error appears during use or immediately on power‑up

Possible Causes

  • Keypad/membrane short or electrical issue (medium)
  • Loose or damaged keypad ribbon cable or wiring (medium)
  • Control board communication failure (low)

How to Fix Error F3

DIY Fix Perform a power reset

  1. Unplug the microwave from the outlet.
  2. Wait 5–10 minutes to allow residual charge to dissipate.
  3. Plug microwave back in and check if the F3 error clears.

DIY Fix Inspect and clean the keypad

  1. Unplug the microwave.
  2. Gently clean the touchpad surface with a soft cloth slightly dampened with mild soap and water.
  3. Dry completely and test button responsiveness.

Technician Only Check/replace keypad membrane and ribbon cable

  1. Disconnect power and discharge high‑voltage capacitors.
  2. Remove microwave cover to access control panel.
  3. Inspect the keypad membrane and ribbon cable for damage or shorts.
  4. Replace faulty keypad or cable as needed.

Parts needed: keypad membrane, ribbon cable

Technician Only Diagnose/replace main control board

  1. Verify keypad and wiring integrity.
  2. If keypad and cable test good, test control board inputs.
  3. Replace control board if it fails diagnostic tests.

Parts needed: control board

🛑 When to Call a Pro:
  • If error persists after reset and keypad cleaning.
  • If you are not comfortable opening the microwave due to high‑voltage risk.

Technical Specifications

wattage 1000W
component Temperature Sensor
resistance 1-5 ohms
part_number WB21X10130
voltage_rating 120V AC

Common Questions

What does F3 error mean on GE microwave?

F3 error indicates a fault in the keypad or control circuitry, causing the microwave to not start or respond.

Can I fix GE microwave F3 error myself?

Yes, you can try resetting the microwave and cleaning the keypad to see if the error clears.

How much does it cost to fix F3 error?

Estimated repair costs range from $30 to $120, depending on the issue.

When should I call a technician for F3?

Call a technician if the error persists after a reset or if you're uncomfortable accessing the microwave internally.

Data last verified: 2026-01-10

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