Electrolux Refrigerator Error Code P3

The P3 code on an Electrolux refrigerator indicates that a shorted circuit has been detected in the primary temperature sensor. The control board monitors the resistance output of this sensor to determine compartment temperature, and a short causes the resistance to drop abnormally low. This prevents the refrigerator from accurately regulating temperature. The fault must be diagnosed by checking the sensor, its wiring harness, and connector for damage or corrosion.

A P3 error is not an immediate safety hazard in terms of fire or electric shock risk under normal circumstances. However, because the refrigerator cannot accurately monitor compartment temperature with a shorted sensor, food may not be kept at safe temperatures. It is advisable to check the internal temperature with a standalone thermometer and address the fault promptly to avoid food spoilage.

Repair costs vary depending on which component has failed. If only the primary temperature sensor needs replacement, parts typically range from $15 to $50, with labor costs adding $75 to $150 depending on the service provider. If the wiring harness or control board is involved, total repair costs could range from $150 to $400 or more. Getting a diagnostic estimate before authorizing repairs is recommended.

Begin by entering service mode test #3 to confirm the sensor fault is active. Then inspect the primary sensor wiring harness for physical damage and check the connector terminals for corrosion or moisture. Use a multimeter to measure the sensor's resistance; a reading near zero ohms confirms a shorted sensor that needs replacement. If the sensor and wiring test normally, the control board's sensor input circuit may be the source of the fault.

A power reset may temporarily clear the P3 code from the display, but the error will return if the underlying short circuit in the sensor circuit has not been repaired. Resetting without fixing the root cause does not restore accurate temperature monitoring. A proper repair requires inspecting and testing the sensor, wiring, and connector, then replacing any faulty components.