SE
Hisense Stuck Key or Shorted Keypad

Microwave beeps repeatedly and displays SE (sometimes interpreted as 5E) and will not accept input.

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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

Moisture ingress into keypad,Shorted keypad membrane,Contaminated or damaged keypad ribbon cable,Defective control panel assembly

How to Fix / Troubleshooting

Safety first: Unplug the microwave before cleaning around the control panel.

Steps:

  • Dry the keypad: If the error appeared after heavy steam cooking, leave the door open and allow the control panel to dry for several hours. You can gently wipe the surface with a dry, lint-free cloth.
  • Do not spray directly: Never spray cleaner directly onto the keypad. Spray onto a cloth first, then wipe. Liquids entering the panel can short the keypad.
  • Power reset: After drying, plug the unit back in. If SE persists, the keypad is likely damaged.

Technician repair:

  • Remove the control panel and inspect the keypad membrane and ribbon cable.
  • Replace the control panel keypad assembly if shorted or corroded.
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Repair Difficulty

Medium 3/5

Required Part

Control Panel Keypad
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