¿Qué provoca el error A172 de Carrier?

Incorrect wiring. Loss of power. Faulty control board

¿Cómo se corrige el código de falla A172 de Carrier?

1. Verify power to the SCB2 board. 2. Check all wiring connections between the main control and SCB2. 3. Contact a technician to diagnose the communication failure.

A172

A172 - Staged Gas Control Board 2 (SCB2) Comm Failure

Carrier · Air Conditioning

¿Qué significa A172 ?

Communication has failed with the second Staged Gas Control Board (SCB2). The cooling function will be stopped.

Causas comunes

Incorrect wiring
Loss of power
Faulty control board

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

1
Verify power to the SCB2 board.
2
Check all wiring connections between the main control and SCB2.
3
Contact a technician to diagnose the communication failure.

Ver todos los códigos en este manual (60)

Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

A051A051 - Compressor 1 Stuck On Failure A052A052 - Compressor 2 Stuck On Failure A055A055 - Compressor 1 Stuck On Failure (Circuit B)

Fuente: Carrier Air Conditioning

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