E16
Sharp Control Board Communication / Internal Error

Microwave displays E16 and the clock or display behaves erratically.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Corrupted control board firmware, Internal microcontroller fault, Electrical surge damage, Loose low-voltage connectors

How to Fix / Troubleshooting

Safety: Unplug the microwave before removing the control panel or cabinet.

Steps:

  • 1. Hard reset: Unplug the unit for at least 10 minutes to fully discharge internal circuits. Plug back in and reprogram the clock. Test basic functions.
  • 2. Surge protection: If the error followed a power outage or lightning storm, consider using a surge protector for future use.
  • 3. Inspect control connections (advanced): Remove the control panel and check all low-voltage connectors to the display, keypad, and sensors. Reseat any loose plugs.

Repair: If E16 persists after a reset and connector check, the main control board is likely defective and should be replaced with the correct Sharp PCB by a technician.

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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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