Safety first: Ensure the outlet is safe and not overloaded. Unplug the unit before opening any panels.

Troubleshooting steps:

Verify outlet: Test the wall outlet with another appliance. Reset any tripped breakers or GFCI outlets.
Inspect power cord: Look for visible damage. If damaged, replace the Tristar power cord.
Check power switch: If your model has a mechanical switch, ensure it clicks firmly. Access the switch from the front panel and test continuity with a multimeter.
Inspect internal fuse: Remove the rear/bottom panel and locate the fuse on the main control or power board. Replace only with the same rating if blown.
Power module check: If the fuse is good but there is still no power, the Tristar power supply module or main control PCB may be defective and should be replaced.
When to call a pro: If you are not comfortable testing live voltage or replacing boards, contact a qualified appliance technician.

Ice maker does not power on at all; no lights or display.

Possible Causes