Actron Air E4 Error Code
Low-pressure sensor failure
Causes & Recommended Solutions
The E4 error code indicates a communication failure between the indoor and outdoor units, which can lead to improper system operation. This is often caused by wiring or PCB issues.
Common Causes of the E4 Error Code
Loose or Damaged Wiring
The wiring between the indoor and outdoor units may be loose or damaged.
Faulty PCB
The PCB in either the indoor or outdoor unit may be malfunctioning.
Power Supply Issues
Power fluctuations can interfere with communication between the units.
Recommended Solutions
Power Cycle the System
Turn off the system for 5 to 10 minutes, then power it back on to reset the communication.
Inspect the Wiring
Check the motor for signs of wear or failure.
Check the PCB
A technician can inspect the PCB and replace it if needed.
Call Paragon Air for Expert Help
Paragon Air can quickly resolve communication errors. Contact us for fast and professional service.