Error Code 43 — Low pressure switch open

¿Qué significa 43 ?

The low pressure switch in the system has opened, indicating that the system pressure is too low. This can lead to insufficient cooling or heating.

• Lack of refrigerant charge
• Low heat load on the indoor coil
• Restrictions or airflow issues
• Low indoor load

Haga clic en los pasos para seguir su progreso.

1. 1

   Check the continuity of the low pressure switch.

2. 2

   Verify the refrigerant charge level.

3. 3

   Ensure there is adequate airflow to the indoor coil.

4. 4

   Check for restrictions in the system.

5. 5

   If pressures are correct but the switch is faulty, replace the switch.