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Sharp Microwave display not working

01 - Sharp Microwave Touchpad and Control Panel

If the microwave does not have a separate display board, then the display not working is likely caused by a defective touchpad and control panel.
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02 - Sharp Microwave Control Module

A malfunctioning display could be caused by a defective control module. Try pressing each of the buttons on the control panel. If none of the buttons are responding correctly, it is likely the control module is defective and will need to be replaced.
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03 - Sharp Microwave Main Control Board

If the display goes out partially, the display board is more commonly at fault. If the display isn’t working at all, either the main control board or the display board could be at fault.
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04 - Sharp Microwave Display Board

If the display isn’t working at all, either the main control board or the display board could be at fault. If the display goes out partially, the display board is more commonly at fault.
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05 - Incoming Power Problem

Confirm the microwave is plugged in and there is power at the wall receptacle. You can plug another small appliance into the receptacle to confirm there is power. If there is no power, confirm the circuit breaker has not tripped.
Highly Likely

06 - Sharp Microwave Control Board

Since the control board is a part of the digital display, a defective board could be responsible for a microwave display not working, if the control board has power to it but the display is not working replace the control board.
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Common

07 - Power reset

A microwave display not working may be due to a power outage or power surge. Full operation can sometimes be restored through a power reset by either unplugging the unit's power cord for a few minutes and then plugging it back in or switching off the circuit breaker for the microwave then switching it back on.
Common

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