Insignia countertop ice maker will not power on, display shows E1 shortly after plugging in or pressing Power.

Safety first: Unplug the ice maker from the wall outlet before opening any panels. Do not work on live circuits.

• Check the outlet: Plug a lamp or phone charger into the same outlet to confirm it has power. If not, reset the breaker or use a different outlet.
• Inspect the power cord: Look for cuts, kinks, or burn marks. If damaged, the cord must be replaced; do not tape or splice it.
• Reset the unit: Unplug the ice maker for 10–15 minutes, then plug it back in and press Power. Sometimes E1 is a transient control-board error.
• Access the control board: Remove the rear or bottom service panel (typically Phillips screws). Locate the main control PCB where the power cord enters.
• Check the internal fuse: Many Insignia ice makers have a small glass or ceramic fuse on the control board. Use a multimeter in continuity mode; if open, replace with the same rating (amperage and voltage).
• Inspect connectors: Verify all harness plugs to the control board are fully seated and not burnt or corroded.
• If fuse blows again: A shorted component (compressor start circuit, fan, or board) is likely. At this point, replacement of the main control board or professional diagnosis is recommended.