Unit shuts down; control board beeps six times repeatedly

Safety First: Only qualified persons should measure live voltage. Disconnect power before tightening connections.

• Measure line voltage: With a multimeter and panels closed, measure voltage at the receptacle and compare to the unit’s nameplate. Voltage should be within ±10% of rating.
• Check dedicated circuit: Ensure the ice maker is on a dedicated circuit of the correct amperage. Remove other heavy loads (microwaves, heaters) from the same circuit.
• Inspect internal connections: Disconnect power. Open the electrical compartment and check all wire nuts, terminal screws, and ground connections for tightness and signs of overheating.
• Check for undersized wiring or long runs: Excessive voltage drop can occur on long or undersized circuits. If voltage at the unit is low but normal at the panel, consult an electrician.
• Reset and monitor: After corrections, restore power and see if the 6-beep code clears. If low voltage persists, do not continue operating the unit.

When to call a technician: Persistent low-voltage faults after electrical corrections may indicate a failing internal transformer or control board power supply.