Display shows ER 40, freezer temperature may be too warm or too cold.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Failed freezer thermistor, Loose thermistor connector, Damaged sensor wiring, Control board sensor circuit failure

Safety: Disconnect power before accessing sensors.

This code indicates the freezer temperature sensor is reading out of range.

Locate the thermistor: It is usually behind a small cover on the freezer wall or clipped to the evaporator tubing.
Check connection: Remove the cover and verify the thermistor plug is fully seated.
Inspect wiring: Look for damaged or brittle wires.
Replace thermistor: If the error persists, replace the freezer thermistor with the correct Dacor part. Route the new sensor in the same position as the original.

Medium 3/5

Freezer Thermistor

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