Alert Code 437 — Heat-sink temperature sensor fault

¿Qué significa 437 ?

The temperature sensor for the inverter's heat sink has failed, reporting extreme temperatures. This will cause the outdoor unit to stop. Repeated faults can lead to a system lockout.

• Heat sink temperature sensor failure
• Sensor reading outside of operating range

Haga clic en los pasos para seguir su progreso.

1. 1

   Moderate fault conditions should clear automatically. Critical fault conditions require restarting the system by cycling power to the outdoor unit.

2. 2

   Ensure the outdoor unit is not exposed to extreme ambient temperatures that could cause sensor errors.