The E5 error on your Frigidaire means the control board has detected a problem with the freezer temperature sensor (thermistor) circuit, either an open or shorted signal. This usually points to a faulty sensor or a wiring issue, and it’s fixable in most cases without calling a technician.

Error code E5
Meaning Freezer temperature sensor (thermistor) fault — open or shorted circuit
Severity Medium — the fridge may still run but temperature control becomes unreliable
Time to fix 15–40 minutes
Tools needed Multimeter, Phillips screwdriver

What the E5 error means

Frigidaire refrigerators use a thermistor in the freezer compartment to send temperature readings to the main control board. When the board receives a signal that’s out of the expected range — either no signal at all or a constant abnormal reading — it flags this as the E5 error. This is different from codes like the Frigidaire EF Error Code, which relates to evaporator fan issues, so it’s worth confirming you’re reading the display correctly before starting repairs.

Common causes

  • Faulty freezer thermistor (sensor) that has failed internally
  • Loose or disconnected wiring connector at the sensor or control board
  • Damaged or pinched sensor wire, often from ice buildup or a shifted panel
  • Moisture or frost corrosion on the sensor connection
  • Main control board fault misreading a normal sensor signal
  • Sensor dislodged from its mounting bracket, giving inaccurate readings

How to fix the E5 error

  1. Unplug the fridge and check wiring first: Disconnect power for two minutes, then check that the sensor wiring harness inside the freezer is firmly connected at both ends.
  2. Inspect for frost or ice damage: Look for ice buildup around the sensor location on the freezer wall; melt any ice carefully with a hairdryer on low heat and dry thoroughly.
  3. Test the sensor with a multimeter: With the fridge unplugged, disconnect the thermistor and check resistance against Frigidaire’s spec chart for your model; a reading of zero or infinite ohms confirms a failed sensor.
  4. Replace the faulty thermistor: If the sensor tests bad, order the exact replacement part for your model number and swap it in, making sure the connector clicks in fully.
  5. Power cycle and monitor: Plug the fridge back in, wait 10 minutes, and check if the E5 code clears. If it returns immediately, the issue may be the control board rather than the sensor.
  6. Call for service if the code persists: If a new sensor doesn’t resolve it, the main control board likely needs professional diagnosis and replacement.

FAQ

Can I keep using the fridge with an E5 error showing?
A. It may still run for a short time, but temperature control will be unreliable, risking food spoilage or freezer burn, so it’s best to fix it promptly.

Will unplugging the fridge reset the E5 code?
A. Unplugging can clear the display temporarily, but if the underlying sensor or wiring fault remains, the code will return once power is restored.

Is the E5 error the same across all Frigidaire models?
A. Most Frigidaire models use E5 for a freezer sensor fault, but always check your owner’s manual, since some models pair it with codes like the ones covered in Frigidaire CA Error Code: Causes and Fixes for additional context.