Display shows E1; freezer may not cool properly or may run continuously.

Safety first: Disconnect power before accessing the thermistor or control board. Use caution around sharp metal edges.

• Step 1 – Reset control: Unplug the freezer for 5 minutes, then plug it back in. If E1 returns, proceed.
• Step 2 – Locate freezer thermistor: Typically mounted on the rear liner or evaporator cover. Remove shelves and the rear panel if needed.
• Step 3 – Inspect and reseat: Check the thermistor wiring for damage. Disconnect and reconnect the thermistor plug to ensure a solid connection.
• Step 4 – Replace thermistor if damaged: If the sensor body is cracked or the wires are frayed, replace the thermistor with a KitchenAid-compatible part.
• Step 5 – Control board check: If a new thermistor does not clear E1, the main control board may be faulty and should be tested or replaced by a technician.