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E464

E464 - IPM Over Current error

Samsung · Air Conditioning

What does E464 mean?

The IPM (Intelligent Power Module) has detected an over current, indicating a potential issue with refrigerant, the compressor, or service valve operation.

Common Causes

  • Abnormal refrigerant state.
  • Compressor issue.
  • Service valve not open.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check if the service valve is fully open.

  2. 2

    Verify the refrigerant charge level and state.

  3. 3

    Inspect the compressor for any signs of malfunction.

Browse all codes in this manual (137)
Verified technical data. Last updated: April 2026

Related Faults

Abnormal displayAbnormal outdoor LED display - Error modeAll LEDs offAll outdoor unit LEDs off - No powerC101/C102C101 or C102 - Indoor to outdoor communication error
Source: Samsung Air Conditioning
Open Manual (Page 63)Search more codes in this manual