Daikin E3 Error Code
High pressure sensor (HPS) activated.
Causes & Recommended Solutions
The E3 error code indicates that the high-pressure sensor (HPS) has been activated. This usually occurs when there is excessive pressure within the system, often caused by blockages or a problem with the refrigerant flow.
Common Causes of the E3 Error Code
Blocked or Dirty Coils
Low Refrigerant Level
Faulty High-Pressure Sensor
Restricted Refrigerant Flow
Recommended Solutions
Inspect the Air Filters and Coils for Blockages
Check the Refrigerant Level and Top Up if Necessary
Verify the Functionality of the High-Pressure Sensor
Perform a System Reset
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