Product Description
Introduction to Panel Fault Codes:
Fault code: When the panel detects a fault, it stops working and displays the fault code on the digital tube
E-1: Undervoltage/overvoltage protection: The power supply voltage is lower than the set value (default 21.5V overvoltage protection, power supply voltage is higher than 30V)
E-2: Overcurrent protection check whether the external unit is radiating normally and whether there is a heat source at the installation position of the external unit
E-3: Locked rotor protection check if the compressor motor wire is in good contact or if the compressor is stuck in the cylinder
E-4: Under voltage protection check the power supply circuit of the controller, under voltage protection of the controller
E-5: Short circuit check of phase line for wear and short circuit in the connecting wire between the controller and the compressor
E-6: Overvoltage protection Check the power supply circuit of the controller, and ensure the overvoltage protection of the controller
E-7: Continuous locked-rotor shutdown and locked-rotor protection
E-8: Outdoor Fan Fault Check Outdoor Fan Connection Line
E-9: Pressure switch disconnected
H-0: Compressor temperature protection or exhaust temperature protection
H-1: Reserved
H-2: Compressor Phase Loss Protection Inspection Compressor and Driver Connection Line
H-3: Compressor temperature protection
H-4: Reserved
E-C: Temperature Fault Check Temperature Probe Connector or Replace Panel Temperature Probe
E-F: Fan malfunction check if the indoor fan is short circuited or if there is a foreign object blocking the air duct
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