Hisense Start Circuit / Control Input Failure

Microwave display is on but pressing Start does nothing; timer does not count down.

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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

Defective Start button on keypad,Stuck or unresponsive keypad membrane,Control PCB input circuit failure,Child lock feature enabled

How to Fix / Troubleshooting

Safety first: Unplug before cleaning the keypad.

Steps:

  • Check for child lock: Look for a lock icon or LOC on the display. If present, disable the lock by holding the designated key (often Stop/Cancel or 0) for several seconds.
  • Test other keys: Try setting the clock or using other functions. If only the Start key fails, the keypad is likely faulty.
  • Clean keypad surface: Wipe with a slightly damp cloth (no dripping liquid) and then dry. Do not spray cleaner directly onto the panel.
  • Power reset: Unplug for 5 minutes, then reconnect and test again.

If the issue persists:

  • A technician may need to replace the control panel keypad or main control PCB.
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Repair Difficulty

Medium 3/5

Required Part

Control Panel Keypad
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