This guide is designed to help you understand and troubleshoot common error codes displayed by your Frigidaire PTAC.

Frigidaire PTAC Error Codes
Understanding your Frigidaire PTAC Error Codes

If you encounter an error code, follow the steps below to identify the potential issue and get your air conditioner back up and running.

Understanding Your Frigidaire PTAC Error Codes:

  • Error Code: This is a specific alphanumeric code displayed on your air conditioner’s control panel.
  • Description: A brief explanation of the problem the code indicates.
  • Possible Causes: A list of potential reasons why the error code might be triggered.

Common Frigidaire PTAC Error Codes and Troubleshooting:

Error CodeDescriptionPossible Causes
F1Indoor Temperature Sensor Malfunction1: There is a loose or faulty connection between the sensor and the controller.
2: Short circuit within the controller.
3: Damaged indoor temperature sensor.
4: Faulty main circuit board.
F2Indoor Coil Sensor Malfunction1: Loose or faulty connection between the sensor and the controller.
2: Short circuit within the controller.
3: Damaged indoor coil sensor.
4: Faulty main circuit board.
F4Outdoor Temperature Sensor Malfunction1: Loose or faulty connection between the sensor and the controller.
2: Short circuit within the controller.
3: Damaged outdoor temperature sensor.
4: Faulty main circuit board.
FPLow Temperature Protection Activated1: The room temperature is continuously below 40°F (5°C).
2: Damaged indoor temperature sensor.
3: Faulty main circuit board.
Resolving Common Error Codes on Your Frigidaire PTAC

Frigidaire PTAC Error Codes Troubleshooting Steps:

  1. Check connections: Ensure all wiring connections between the sensors and the controller are secure and free of damage.
  2. Empty the condensate tank. A full condensate tank can sometimes trigger error codes. Make sure the tank is emptied regularly.
  3. Clean the air filters. Clogged air filters can reduce airflow and lead to sensor malfunctions. Clean the filters according to the manufacturer’s instructions.
  4. Reset the unit: If the error code persists, try resetting the air conditioner by unplugging it from the power outlet for a few minutes and then plugging it back in.

Frigidaire PTAC Temperature Sensor Resistance Values

This table shows the expected resistance values for a Frigidaire PTAC temperature sensor at different temperatures (°C and °F)

Temperature (°C)Temperature (°F)Resistance (kΩ)
03249
105029.9
206818.75
308612.07
401047.96
Use this table to compare the measured resistance of your sensor with the expected values to diagnose potential malfunctions.

Important Notes:

  • This guide is intended for informational purposes only.
  • Refer to your user manual for specific instructions related to your Frigidaire PTAC model.

By following these tips, you should be able to identify and troubleshoot common error codes displayed by your Frigidaire PTAC.

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