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Electricity not conducted between CN201 and S2

No continuity between CN201 and S2 — Terminal block assembly fault

Mitsubishi Electric · Air Conditioning

¿Qué significa Electricity not conducted between CN201 and S2 ?

There is no electrical conduction (0 Ω resistance) between the connector CN201 on the indoor power P.C. board and S2 on the terminal block. This indicates a break in the wiring path.

Causas comunes

  • Faulty terminal block assembly
  • Internal wiring break between CN201 and S2
  • Poor connection at the terminal block

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Turn off the power supply.

  2. 2

    Check the continuity between CN201 and S2 using a tester.

  3. 3

    Replace the terminal block assembly if continuity is not established.

  4. 4

    Inspect the wiring harness connected to the terminal block.

Ver todos los códigos en este manual (170)
Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

0.5-second ON / 0.5-second OFF blinkUpper lamp blinks 0.5-second ON/OFF - Miswiring or serial signal error00Normal operation - No error codes1 beep during error display mode1 beep during error display mode - Unit has an error (different code)
Fuente: Mitsubishi Electric Air Conditioning
Open Manual (Page 27)Buscar más códigos en este manual