E2 displayed and freezer struggles to maintain set temperature, may over-freeze or under-freeze

Safety first: Unplug the freezer. Be cautious of sharp metal edges around the evaporator area.

Steps:

• Empty the freezer compartment and remove baskets and shelves.
• Remove the inner rear panel to expose the evaporator coil (on upright models) or the bottom/side panel (on chest models).
• Locate the evaporator sensor clipped to the evaporator tubing or mounted in a small well near the coil.
• Check that the sensor is firmly attached to the coil and not hanging loose; re-clip it if necessary.
• Inspect the sensor wiring for ice damage, cuts, or corrosion at the connector.
• If you have a multimeter, test the sensor resistance and compare to Ocean’s NTC chart; replace the sensor if readings are out of range or open/shorted.
• Reconnect everything, restore power, and monitor if the E2 code clears. If not, the main control board may need replacement.