U-Match Series DC Inverter Service Manual
98
E3 stands for three statuses:
(1) Low pressure protection (48k/60k);
(2) Refrigerant lacking protection;
(3) Refrigerant recycling mode;
① If enter refrigerant recycling mode through special operation, the displayed E3 is not an error
code. It will be eliminated when exiting refrigerant recycling mode.
② If you do not want to have refrigerant lacking protection, you can enter the debugging mode
through wired controller and then cancel the refrigerant lacking protection mode.
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