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455

Error 455 — Overheated IPM of Fan1

Samsung · AC & Climate Systems

What does 455 mean?

The Intelligent Power Module (IPM) associated with Fan 1 in the outdoor unit has overheated. This indicates a potential issue with the fan's power control.

Common Causes

  • IPM overheating due to load or fault
  • Poor heat dissipation for the IPM
  • Electrical issue with Fan 1 control

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the area around the IPM is clean and has adequate ventilation.

  2. 2

    Check the connections and wiring related to Fan 1's IPM.

  3. 3

    This is a critical fault that requires a qualified technician to diagnose and repair.

  4. 4

    Do not operate the unit until the issue is resolved.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

101Error 101 — Indoor unit communication error102Error 102 — Communication error between indoor and outdoor units108Error 108 — Repeated address setting
Source: Samsung AC & Climate Systems
Open Manual (Page 24)Search more codes in this manual