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E458

E458 — Outdoor fan speed error (FAN1)

Samsung · Air Conditioning

What does E458 mean?

The system has detected an error with the operation or speed of the outdoor unit's Fan 1.

Common Causes

  • Outdoor fan motor malfunction
  • Wiring issue to the outdoor fan
  • Outdoor unit PCB fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power off the outdoor unit at the circuit breaker for 30 seconds, then power it back on.

  2. 2

    Listen for unusual noises from the outdoor fan during operation.

  3. 3

    Ensure there are no visible obstructions blocking the outdoor fan blades.

Browse all codes in this manual (94)
Verified technical data. Last updated: April 2026

Related Faults

COND temperature sensor errorCondenser temperature sensor error — Outdoor coil temperature sensor faultCommunication errorCommunication error — Indoor/outdoor inverter main MICOM communication lostCommunication error after trackingCommunication error after finishing tracking — System communication issue following a tracking process
Source: Samsung Air Conditioning
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