Hitachi Sticking Control Mechanism

Trigger or power button sticks or does not return smoothly.

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.

Possible Causes

Dust or debris around trigger pivot, Worn plastic guides, Liquid spill causing residue, Weak or displaced return spring

How to Fix / Troubleshooting

Safety first: Remove the battery.

Surface cleaning: Wipe around the trigger or button with a slightly damp cloth, then dry thoroughly. Do not allow liquid to enter the housing.
Exercise the control: Press and release the trigger repeatedly to free minor debris.

If the trigger remains stuck or fails to actuate the switch reliably, internal disassembly is required and should be done by a technician to avoid damaging the housing or switch.

Repair Difficulty

Medium 3/5

Required Part

Trigger Switch Assembly

Check Price on Amazon

We may earn a commission from links on this page.