Common Hisense Refrigerator Error Codes: Troubleshooting Guide

Solutions:

• Check the wiring between the room temperature sensor and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is significantly different, you may need to replace the room temperature sensor.

Solutions:

• Check the wiring between the refrigerator sensor (R sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is not within the specific range, it may be necessary to replace the refrigerator sensor.

Solutions:

• Check the wiring between the freezer sensor (F sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is outside the reading range, it may be necessary to replace the freezer sensor.

Solutions:

• Check the wiring between the freezer defrost sensor (FD sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is not within the specific range, it may be necessary to replace the freezer defrost sensor.

Solutions:

• Check the wiring between the convertible sensor (C sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is not within the specific range, it may be necessary to replace the convertible sensor.

Solutions:

• Check the wiring between the freezer defrost sensor (CD sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is not within the specific range, it may be necessary to replace the convertible defrost sensor.

Solutions:

• Check the wiring between the humidity sensor (H sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the voltage of the sensor. At a relative humidity level of 40%, the voltage should read around 2.10 Vdc. If the value is outside the reading range, it may be necessary to replace the humidity sensor.

Solutions:

• Check the wiring between the ice maker sensor (IM sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is outside the reading range, it may be necessary to replace the ice maker sensor.

Solutions:

• Check the wiring between the ice room sensor (IR sensor) and the main board for any loose connections or damage.
• Use a multimeter to measure the resistance of the sensor. At a temperature of 25°C (77°F), the resistance should read around 2 kiloohms. If the value is not within the specific range, it may be necessary to replace the ice room sensor.

Solutions:

• Check the wiring between the condenser fan (CF) and the main board for any loose connections or damage.
• Inspect the fan blade for any obstructions, damage, or signs of wear. Clean or replace the fan blade if necessary.
• Use a multimeter to measure the voltage of the fan. The main voltage should be approximately 12 Vdc, and the feedback voltage should be around 2.3 Vdc. If the value is not within the specific range, it may be necessary to replace the condenser fan (CF).

Solutions:

• Check the wiring between the freezer fan (FF) and the main board for any loose connections or damage.
• Inspect the fan blade for ice buildup, which can occur due to a defective defrost heater or a faulty thermofuse.
  • If ice is present, it may be blocking the fan’s rotation and causing the error.
  • Addressing the underlying defrost system issue is necessary.

• 12 Vdc: Use a multimeter to measure the voltage of the fan. The main voltage should be approximately 12 Vdc, and the feedback voltage should be around 2.3 Vdc. In the event that the value falls beyond the specified range, it may be necessary to replace the freezer fan (FF).

Solutions:

• Check the wiring between the convertible fan (CF) and the main board for any loose connections or damage.
• Inspect the fan blade for ice buildup, which can occur due to a defective defrost heater or a faulty thermofuse. If ice is present, it may be blocking the fan’s rotation and causing the error. Addressing the underlying defrost system issue is necessary.

• Use a multimeter to measure the voltage of the fan. The main voltage should be approximately 12 Vdc, and the feedback voltage should be around 2.3 Vdc. In the event that the value falls beyond the specified range, it may be necessary to replace the convertible fan (CF).

Solutions:

• Check the wiring between the user interface and the main board for any loose connections or damage. Ensure that all connections are secure and properly plugged in.
• If the error continues to occur even after troubleshooting the wiring, it may be necessary to replace the user interface board. The user interface board is responsible for transmitting signals from the display to the main control board.

Solutions:

• Check the wiring between the user interface and the main board for any loose connections or damage. Ensure that all connections are secure and properly plugged in.
• If the error continues to occur even after troubleshooting the wiring, it may be necessary to replace the user interface board. The user interface board is responsible for receiving signals from the main control board and displaying information on the display board.

Solutions:

• Inspect the ice maker for signs of freezing. Ice buildup within the ice maker can hinder its operation. If ice is present, thawing it out or addressing the underlying issue causing freezing is necessary.
• Check the test button of the ice maker. Pressing this button should initiate the motor and verify if it functions properly. If pressing the test button does not yield any response, there may be a problem with the motor or its connection.
• Check the wiring between the ice maker and the main board for any loose connections or damage. Ensure that all connections are securely connected.
• Inspect the ice maker fan.
• Check the ice maker motor. The motor is responsible for the rotation and dispensing of ice. If the motor is faulty or not functioning correctly, it may need to be replaced.

Solutions:

• Check the wiring between the door switch and the main board for any loose connections or damage. Ensure that all connections are secure and properly connected.
• Inspect the door switch itself. The door switch is responsible for detecting when the door is closed or open. Verify if the switch is functioning correctly and that it is making proper contact when the door is closed.
• Ensure that the door switch is receiving a voltage of 5 VDC. You can use a multimeter to measure the voltage at the door switch terminals. If the voltage is not within the expected range, it may indicate a problem with the main board. In such cases, replacing the main board of your refrigerator is recommended.