Sharp Microwave Error Code EE 3: How to Fix It

Hard 45-90 minutes High Severity Verified June 2026
Error Code
EE 3
Brand
Sharp
Product Type
microwave
Severity
High
DIY Difficulty
Hard
Estimated Fix Time
45-90 minutes
Sharp microwave error code EE 3 indicates a ROM check error on the control PCB (printed circuit board). This means the microwave's main control board has detected a problem with its internal memory or firmware, preventing normal operation.
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Tools You'll Need

How to Fix Error Code EE 3

  1. Unplug the microwave and wait

    Always unplug the microwave before performing any troubleshooting to prevent electrical shock.
  2. Check the power supply

  3. Perform a hard reset

  4. Remove the outer casing

    Microwaves contain high-voltage capacitors that can remain charged even when unplugged. Only proceed if you have experience with appliance repair.
  5. Inspect the control board

    Do not touch any components with your bare hands. Use insulated tools and avoid contact with capacitors.
  6. Test connections with multimeter

    Ensure the microwave is unplugged and capacitors are discharged before testing with a multimeter.
  7. Replace the control board

    Take photos of wire connections before disconnecting to ensure proper reassembly.

Parts You May Need

Control PCB board
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Wire harness connectors
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Control PCB board
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Wire harness connectors
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Control PCB board
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Wire harness connectors
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Control PCB board
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Control PCB board
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Control PCB board
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Control PCB board
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
Control PCB board
Check Price on Amazon
Wire harness connectors
Check Price on Amazon
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When to Call a Professional

Call a professional appliance repair technician if you're uncomfortable working with electrical components, if the microwave is still under warranty, or if multiple error codes appear. Control board replacement requires technical expertise and safety precautions due to high-voltage components.

Frequently Asked Questions

What does Sharp microwave error code EE 3 mean?
Error code EE 3 indicates a ROM check error on the control PCB, meaning the microwave's main control board has detected a problem with its internal memory or firmware that prevents normal operation.
Can I fix Sharp microwave EE 3 error myself?
While you can try basic troubleshooting like unplugging and resetting, fixing EE 3 typically requires control board replacement, which involves working with high-voltage components. This repair is best left to professionals unless you have appliance repair experience.
How much does it cost to fix EE 3 error on Sharp microwave?
Professional repair typically costs $150-300, with the control board itself costing $80-150. Given the complexity and safety risks, many people choose to replace the microwave if it's older than 7-8 years.
Why does my Sharp microwave keep showing EE 3?
Persistent EE 3 errors usually indicate a failed control board that needs replacement. Power surges, age, moisture exposure, or manufacturing defects can cause the control PCB to malfunction.
Is it worth repairing a Sharp microwave with EE 3 error?
Consider the microwave's age and repair cost versus replacement cost. If the microwave is over 8 years old or repair costs exceed 50% of a new unit's price, replacement is usually more cost-effective.