TROUBLESHOOTING
Cooling air Extension Tube Installation
Instructions
●
This accessory can be used in some narrow space where it is not convenient to place
the equipment, such as the cab, etc., you can use this accessory to send cold air to the
specified position. When adjusting the position of the cold air extension, one hand
should be pressed against the connector of the cold air extension.
Note: The arrow direction of the air outlet is downward
Troubleshooting
Error Code
E1
E3
LO
HI
Fault Conditions
Indoor ambient temperature sensor failure
Communication failure between main
board and display board
undervoltage protection
overvoltage protection is full
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