Ice maker will not power on or shuts off immediately after pressing the power button; E1 appears on the display.

Safety first: Unplug the ice maker from the wall outlet before removing any panels. Do not work on a wet surface.

• Check the outlet: Plug a lamp or phone charger into the same outlet to confirm you have power. If there is no power, reset the breaker or use a different outlet.
• Inspect the power cord: With the unit unplugged, check the cord for cuts, burns, or kinks. If damaged, replace the power cord before further use.
• Access the control board: Remove the rear or side service panel (usually held by Phillips screws). Locate the main control PCB where the power cord connects.
• Check connectors: Verify that the main power connector and low‑voltage harnesses are fully seated on the board. Look for discoloration, burn marks, or melted plastic around the terminals.
• Test incoming voltage: With the unit carefully plugged in and using a multimeter (AC range), confirm that line voltage (typically 120 VAC) is present at the board input. If no voltage is present but the outlet is good, the power cord or internal wiring harness is open.
• Board evaluation: If correct voltage reaches the board but the unit still will not stay on and E1 persists, the internal power supply on the PCB is likely defective. In most cases, the board is not repairable in the field and must be replaced.
• Reassemble and test: After reseating connectors or replacing the board, reassemble the panels, plug the unit back in, and power on to confirm the error is cleared.