Hisense Stuck Relay / Control Logic Fault

Hisense ice maker continues to run even when the power button is pressed off.

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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

Stuck relay on main PCB, Shorted power button contacts, Firmware glitch, Miswired control harness

How to Fix / Troubleshooting

Safety: Unplug the unit immediately if it does not respond to the power button.

  • Power reset: Leave unplugged for 10 minutes, then plug back in and test the power button.
  • Inspect control panel: Remove the UI panel and check for stuck or damaged power button mechanisms.
  • Check main PCB: Look for relays that appear burnt or stuck. If the compressor or pump runs with the control harness disconnected, the relay is likely welded closed.
  • Replace PCB or UI: Replace the main control board if a relay is stuck, or the UI panel if the button is shorted.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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