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mitsubishi | air-conditioner Error Codes: Troubleshooting, Fixes & Prevention Tips explained below.

What Does the CC Error Mean?❓

CC stands for a memory error involving the EEPROM, typically located on the main PCB of the air conditioner. This memory stores essential data such as temperature calibrations, settings, and fault logs. If corrupted, the AC loses its ability to function properly and may shut down.

air-conditioner - Causes of CC Error

  • Sudden power surges damaging EEPROM
  • Corrupted firmware or software glitches
  • Improper voltage supply to control board
  • Moisture or corrosion on EEPROM chip
  • Manufacturing defect in the PCB

air-conditioner - How to Fix CC Error❓

  • Restart the AC

    1. Turn off power to the unit completely.
    2. Wait for 5–10 minutes.
    3. Turn it back on to see if the error clears.

  • Inspect the Main PCB

    1. Check for signs of burnt components or corrosion.
    2. Look specifically near the EEPROM chip.

  • Reprogram or Replace EEPROM

    1. Some EEPROMs can be re-flashed with correct firmware.
    2. If not, replace the main PCB with a compatible LG original.

  • Install a Surge Protector

    1. Use a stabilizer or surge protector to prevent future voltage damage.
    2. Ensure steady voltage to sensitive electronic components.

air-conditioner - Helpful Tips

  • Always turn off the power before servicing control boards.
  • Use a multimeter to test voltages before replacing parts.
  • Prevent moisture ingress by sealing outdoor units properly.
  • Avoid resetting the AC repeatedly without diagnosing the issue.
  • Keep your AC connected to a stabilizer, especially during monsoon or unstable power conditions.

Frequently Asked Questions❓

Question: Can I fix the CC error myself?
Answer: Usually no, as it involves diagnosing or replacing the control board which should be handled by a qualified technician.
Question: Is the EEPROM repairable?
Answer: In some cases, it can be reprogrammed, but most commonly the entire PCB is replaced.
Question: Will the CC error affect cooling performance?
Answer: Yes. The unit may stop functioning entirely, or operate in a limited or unsafe state.

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EEPROM/Memory Error - mitsubishi | air-conditioner - Error Code | Appliance Error Fix