Service Diagnosis
50
 Domestic Air Conditioner
7.4.Error Codes and Description indoor display 
Code indication 
Indoor
displaying 
panel code 
indication
Outdoor 
(LED1 flash 
times) 
fault description 
Reference
Page
Indoor and 
Outdoor 
E7 15 
Communication fault between indoor and 
outdoor units 
Page .60
E1  --  Room temperature sensor failure    Page .51 
E2  --  Heat-exchange sensor failure    Page .51 
 25. egaP rorre MORPEE roodnI -- 4E
Indoor Malfunction 
E14  --  Indoor fan motor malfunction  Page .53 
 25. egaP rorre MORPEE  roodtuO 1 21F
F1
2
 55. egaP MPI fo noitcetorp ehT
F22
3 Overcurrent  protection of  AC electricity  
for    the outdoor model 
Page .56 
F3 4 
Communication fault between the IPM and 
outdoor PCB 
Page 57 
F19  6  Power voltage is too high or low  Page .58 
F Overheat protection for exhaust temperatu Page .59 
F21  10  Defrost temperature sensor failure  Page .51 
F7  11  Suction temperature sensor failure  Page .51 
F6  12  Ambient temperature sensor failure  Page .51 
F25  13  Discharge temperature sensor failure  Page .51 
F11  18  deviate from the normal    for the compressor  Page .63 
F28  19  Loop    of    the station detect error  Page .63 
E2  24  Overcurrent of the compressor  Page .56 
Outdoor 
Malfunction 
F23 25 
Overcurrent protection for single-phase of the 
compressor 
Page .56