Ice maker will not power on at all (no lights, no display, no sounds)

Safety First: Turn off the breaker before inspecting wiring. Do not bypass fuses.

• Check building power: Verify the outlet has correct voltage using a known-good appliance or a meter. Reset any tripped breaker and replace blown fuses with correct rating.
• Inspect power cord: Look for cuts, burns, or loose plug blades. Replace the cord if damaged.
• Check terminal block: Remove the front panel and inspect the power terminal block for loose screws or burned terminals. Tighten and replace damaged parts.
• Inspect internal fuse: Many Hoshizaki boards have a small fuse. With power off, remove and test for continuity. Replace only with the same type and rating.

When to call a technician: If power is present at the terminal block but the unit remains dead, the control board or transformer may have failed.