Hitachi Keypad Input Failure

Control panel buttons unresponsive but display is lit

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.

Possible Causes

Faulty touch panel, Damaged ribbon cable, Control panel lock function enabled, Faulty main control PCB interface

Safety first: Disconnect power before removing the control panel.

Check for child lock: Some Hitachi freezers have a panel lock feature. Hold the lock/unlock button (or combination) for several seconds to toggle.
Inspect panel and cable: Remove the panel and check the ribbon cable for damage or loose connections.
Replace touch panel: If the cable is good but keys do not respond, install a new Hitachi control panel PCB.
Main PCB: If a new panel does not restore function, the main control PCB may be defective.

Medium 3/5

Control Panel PCB

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