If none of the above solves your issue please contact with us.
When the electronic control module of compressor malfunctions, LED display
will show ER1,ER2,ER3,ER4,ER5 and compressor will stop work. After remove the
fault please wait 3 minutes before the system start operation.WhenNTC(this mean
temperature sensor/) failure detected, the LED display shows ERO,ER9 ,after
remove the fault 2 seconds later, the dispaly will show the internal temperature again.
Error Code Problems Solution Method
ER0
Temperature sensor short circuit（at this point the
compressor enters a regular operating mode, work 30
minutes then stop 30 minutes.
Change the temperature sensor
line
ER1 Input under-voltage protection
1. Change the battery, 2. Lower
battery protection switch
ER2 DC fan over-current protection Change the fan
ER3 Compressor start-up problem
Interrupt power and place 30min,
then re-start
ER4 Rotational Speed of compressor is abnormal Change the main controller
ER5 The temperature of control module is abnormal
Move the fridges in a cool place ,
cooling the module then re-start
ER5 The temperature of control module is abnormal
Move the fridges in a cool place ,
cooling the module then re-start
ER9
Temperature sensor open circuit（at this point the
compressor enters a regular operating mode, work 30
minutes then stop 30 minutes.）
1.Tighten the temperature sensor
line,
2. Change the temperature sensor
line.
