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UE

UE - High pressure error (ball valve closed) in outdoor unit

MHI · R410A Systems

¿Qué significa UE ?

This error code signifies a high-pressure condition in the outdoor unit, specifically linked to a closed ball valve.

Causas comunes

  • One or more ball valves (service valves) on the outdoor unit are closed.
  • System overcharged with refrigerant.
  • Restricted refrigerant flow due to a closed valve.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Turn off the power to the air conditioner at the main circuit breaker.

  2. 2

    Have a qualified HVAC technician inspect the outdoor unit's service valves to ensure they are fully open.

  3. 3

    The technician should also check refrigerant pressure.

  4. 4

    Only restore power after the valve position has been corrected by a professional.

Ver todos los códigos en este manual (58)
Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

E0E0 - Transmitting/receiving signal error in indoor unitE12E12 - Address setting conflict or auto address failureE14E14 - 3 flashes - Master/slave system wiring or SW settings error
Fuente: MHI R410A Systems
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