DC Inverter U-match Series Cassette Type Unit 
54 
Notice: 
Check  the  above  items  and  adopt  the  corresponding 
corrective measures. If the air conditioner continues to function poorly, please 
stop the air conditioner immediately and contact Gree’s authorized local service 
center. Ask our professional service staff to check and repair the unit.   
5.2 Error Code 
①.  If  abnormal  things  (for  example,  awful  smell)  occur,  please  stop  the  unit 
immediately  and  disconnect  power.  Then  contact  Gree’s  authorized  service 
center. If the unit continues to run in abnormal situations, it may get damaged 
and cause electric shock or fire hazard. 
②.  Do not repair the air conditioner by yourself. Improper maintenance will cause 
electric shock or fire hazard. Please contact Gree’s authorized service center 
and send for professional service staff to repair. 
If the display panel or wired control displays an error code, please refer to the 
error code meaning stated in the following table.   
Compressor high pressure protection   
Indoor anti-freeze protection 
Compressor low pressure protection, refrigerant lack 
protection and refrigerant colleting mode 
Compressor air discharge high-temperature protection 
Indoor ambient temperature sensor error 
Evaporator temperature sensor error   
Condenser temperature sensor error 
Outdoor ambient temperature sensor error   
Discharge temperature sensor error 
Wired control temperature sensor error 
IDU or ODU memory chip error 
Electric box sensor error