Ray for Model Number RF4287HARS/XAA-0001 The lights in my Samsung fridge would not come on when opening the right french door but would come on when I opened the left door. After about a week, the lights won't come on when opening either door and the ice/water stopped working. Now the temperature is at 66 degrees and the lowest it gets is 48 degrees when using power cool. The freezer is working just fine. The main board was replaced a year ago, could it be going out again or maybe the inverter board?
Answer Ray, the door switches DA34-00043C can be tested for continuity and the refrigerator sensor DA32-00033C can be tested for resistance directly at the main control DA92-00233D. For the door switches, with the unit unplugged and the doors opened, the circuit can be tested from the wire at connection CN30 pin 2 to CN50 pin 7. If there is continuity, then the switches have failed. If there is not continuity, then the most likely failure is the main control. The refrigerator thermistor, with the unit unplugged, can be tested from connection CN30 pin 6 to CN75 pin 1. At 66°F the resistance reading should be 6200 Ohms of resistance. If the thermistor reading matches the temperature, then the main control has failed. If the sensor does not match the temperature, then the sensor failed. Read More... Answered by AppliancePartsPros.com | Wednesday, September 18, 2019