Fujitsu E1 Error Code
High pressure protection activated
Causes & Recommended Solutions
The E1 error code indicates a high-pressure protection issue in your Fujitsu air conditioning unit, meaning the system has detected unusually high pressure in the refrigerant lines.
Common Causes of the E1 Error Code
Clogged Coils
Blockages in the coils can cause pressure to build up within the system.
Low Refrigerant Levels
Low refrigerant levels can disrupt pressure readings.
Faulty Pressure Sensors
The pressure sensors may be faulty or giving incorrect readings.
Recommended Solutions
Inspect the Coils for Blockages
Clean the coils to maintain proper airflow and avoid blockages.
Check Refrigerant Levels
Make sure the refrigerant levels are sufficient and refill them if required.
Test Pressure Sensors
Have a technician inspect the pressure sensors to confirm they are working properly.
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