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425

Display 425 — Power Source Line Missing Error (3-Phase Model)

Samsung · Gen 6 Fault Code List.pdf Energy Lab

What does 425 mean?

This error is specific to 3-phase models and indicates that one of the power source lines is missing or not connected.

Common Causes

  • Loose or disconnected power line
  • Tripped circuit breaker for one phase
  • Electrical supply issue

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check that all three phases of the power supply are correctly connected to the unit.

  2. 2

    Verify that the circuit breakers for the unit are all in the ON position.

  3. 3

    Consult an electrician or qualified technician to inspect the power supply and connections.

Browse all codes in this manual (52)
Verified technical data. Last updated: April 2026

Related Faults

101Display 101 — Wire connection error120Display 120 — Zone 2 room temperature sensor error121Display 121 — Zone 1 room temperature sensor error
Source: Samsung Gen 6 Fault Code List.pdf Energy Lab
Open Manual (Page 44)Search more codes in this manual