Service Support
| Common problems and Solutions | |||
| Item | Fault Code | Fault Type | Solutions |
Semiconductor cool boxes |
/ | Cooling / heating function failure | 1.1 Check whether the fan is running; 1.2 Check whether there is current in the main power harness of the refrigerator; 1.3 Check whether TEC port on PCBA board has voltage; 1.4 Check whether the connectors are loose； 1.5 Replace the TEC; |
| / | Continuous cooling / heating without stopping | 2.1 Check the sealing of the lid; 2.2 Check the voltage; 2.3 Check whether the fan is running; 2.4 Replace the TEC; |
|
| / | Cooling performance degradation | 3.1 Check whether the temperature in the box is too high; 3.2 Check the power supply voltage; 3.3 Check whether there are obstacles at the fan outlet; 3.4 Check whether the fan is running; 3.5 Replace TEC; |
|
| / | Heating performance degradation | 4.1Check whether the temperature in the box is too low; 4.2 Check whether the power supply voltage is normal; 4.3 Check whether there are obstacles at the fan outlet; 4.4 Check whether the fan is running; 4.5 Replace the TEC; |
|
| / | Loud noise | 5.1 Check the power supply voltage; 5.2 Check whether there are obstacles at the fan outlet; 5.3 Replace the fan; |
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| Compressor Refrigerator | Code 1 | Too high/low power supply voltage | Disconnect the power supply of refrigerator, check the power supply voltage; |
| Code 2 | Fan current overload |
Disconnect the fan power and check the input voltage of the fan; | |
| Code 3 | Motor start failure | Compressor failure, restart; If the fault cannot be eliminated after restart, replace the compressor; |
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| Code 4 | Low motor speed | Disconnect the power supply of refrigerator, check the power supply voltage; | |
| Code 5 | Electronic control box overheated | Disconnect the power supply of the refrigerator, shut down for 30mins, and then turn on the power supply for operation; Check whether there is a heat source around the control box; Check the ventilation around the control box ; |
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