Daikin E4 Error Code
Low pressure sensor (LPS) activated.
Causes & Recommended Solutions
The E4 error code indicates that the low-pressure sensor (LPS) has been triggered. This error is usually caused by low refrigerant levels or other issues that interfere with proper refrigerant flow.
Common Causes of the E4 Error Code
Low Refrigerant Level
Faulty Low-Pressure Sensor
Blocked Air Filters or Coils
Insufficient Airflow
Recommended Solutions
Check the Refrigerant Level and Refill if Necessary
Inspect the Low-Pressure Sensor for Malfunctions
Ensure Air Filters and Coils are Clean and Free from Blockages
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