GE Profile undercounter ice maker displays E0 and stops making ice or will not start a cycle.

Safety first: Unplug the ice maker or switch off the dedicated breaker before removing any panels. Use a non-contact voltage tester to confirm power is off.

• Step 1 – Power reset: Disconnect power for 5 minutes, then restore power. Observe if the E0 code clears. If it returns immediately, continue.
• Step 2 – Inspect control board connections: Remove the lower front kick plate or rear access panel (model dependent). Locate the main control board (usually in a plastic housing). Check all wire harness plugs for full seating and signs of corrosion or heat damage. Reseat each connector firmly.
• Step 3 – Check user interface harness: At the front control panel, gently remove the UI assembly. Inspect the ribbon cable or harness for pinched, frayed, or corroded contacts. Clean light oxidation with electronic contact cleaner and reconnect.
• Step 4 – Verify supply voltage: With power restored and using a multimeter (only if you are trained and comfortable working with live voltage), confirm correct line voltage at the control board input terminals. Incorrect voltage may indicate a house wiring or breaker issue.
• Step 5 – Replace control board if needed: If wiring and voltage are correct and E0 persists, the main control board is likely faulty. Order the correct GE Profile control board by model number and replace it, transferring each connector one at a time to avoid miswiring.
• When to call a technician: If you are not comfortable testing live voltage or the code persists after board replacement, contact a qualified appliance technician.