Common questions 
①  Refrigerator not working 
● Power off (plug, socket, fuse, etc.) 
● Low power voltage 
②  Refrigerator making abnormal sound 
● Refrigerating fluid will make a sound during flowing in pipeline, which is normal. 
● Refrigerator will give out loud buzzing sound when used for the first time due to under unstable 
condition, which is normal. 
● When refrigerator operating, evaporator and pipeline will give out “bang-bang” sound due to heat 
expansion and cold contraction, which is normal. 
●  When  refrigerator  starts  and  stops  operating,  relay  and  other  components  will  give  out  “click” 
because of action, which is normal. 
③  Temperature inside the refrigerator is not low enough 
● Excessive setting temperature. 
● Door is not closed tightly or refrigerator door is opened frequently, door opened for a long time. 
● Place where refrigerator is located is affected from direct sunlight or too close to stove and heater, 
other heat source. 
● improper ventilation, panels on both sides of refrigerator steel plate on the back is blocked, or this 
position is too dirty. 
④  Big noise 
● Weather floor is flat and refrigerator is placed stably. 
● Weather part of refrigerator touches external object or wall. Refrigerator gives out a sound and key 
operation is invalid. 
● Check to see whether refrigerator is power-off. 
⑤  Invalid sound button operation of refrigerator 
● Check to see whether refrigerator is power-off. 
● Weather button operation is wrong, correctly operate as per “function introduction”. 
⑥  Automatic variation of temperature display value 
● Temperature display value of refrigerator varies, which is normal. 
●  Variation  of  temperature  display  value  under  artificial  intelligence:  when  environmental 
temperature changes, temperature of refrigerator will be adjusted automatically, which is normal. 
⑦  Serious frosting on the back wall of refrigerator 
● Temperature setting is improper and see “manual temperature regulation”. 
● Door is not closed tightly or propped by foods. 
● Door is opened frequently. 
● Hot weather, excessive moistening and improper ventilation. 
⑧  Higher temperature of containing box of fridge 
● Heat distribution through panels on both sides of containing box, partition between refrigerator 
compartment,  temperature-variation  compartment  and  freezer  compartment,  with  higher 
temperature, which is a normal phenomenon. 
●  Operating  for  a  long  time  and  high  temperature on  the  surface of containing box when using 
initially, which is a normal phenomenon. 
⑨  Compressor operating for a long time