Skip to content
Home » Error Code PC06 in Air Conditioners: Explanation and Diagnosis

Error Code PC06 in Air Conditioners: Explanation and Diagnosis

The PC06 error code in an air conditioner is related to a high temperature detected in the compressor discharge line by the temperature sensor. This error occurs when the discharge temperature measured by the thermistor or sensor exceeds 239°F (approximately 115°C) for 10 seconds, causing the compressor to shut down as a protective measure.

Once the detected temperature drops below 194°F (approximately 90°C), the compressor will automatically restart.

Diagnostic Procedure for Error Code PC06:

  1. Check the temperature with a digital thermometer or infrared gun:
    • Immediately after the compressor stops, measure the temperature of the thin compressor pipe.
    • If the temperature is below 239°F (115°C), the error could be a false alarm.
  2. Inspect the temperature sensor wiring:
    • Ensure that the wiring between the compressor discharge sensor and the main control board is correct, following the electrical diagrams.
  3. Test the temperature sensor:
    • Disconnect the sensor from the electronic board and measure its electrical resistance using a multimeter.
    • The resistance should match the values specified for the sensor’s operating temperature.
    • The reading should never be 0 or infinite.
  4. Analyze the temperature if it exceeds 239°F (115°C):
    • Check the compressor’s electrical consumption with a clamp ammeter and compare it to the normal values indicated on the equipment label.
    • Ensure the outdoor unit is clean and that its fan is working correctly to provide adequate airflow.
  5. Inspect the insulation and check for refrigerant leaks:
    • Verify that the pipes connecting the outdoor and indoor units are properly insulated.
    • If the electrical consumption is below normal, look for oil stains on the pipes, which could indicate a refrigerant leak.
  6. Test the compressor in case of high electrical consumption:
    • Use a multimeter to measure the electrical resistance between the compressor pins. The resistances should be equal.
    • Some compressors have a high-temperature protection switch. Check that the connectors are secure and test the switch’s continuity when the temperature is normal.

0 thoughts on “Error Code PC06 in Air Conditioners: Explanation and Diagnosis”

  1. Terrific work! This is the type of information that should be shared around the internet. Shame on Google for not positioning this post higher! Come on over and visit my web site . Thanks =)

    Comment awaiting moderation.

Leave a Reply

Your email address will not be published. Required fields are marked *