This is an old model the freezer stays cold but I have to defrost it every 10 days for the refrigerator side to work what could be the problem?
Answer Hello Mariana. There are a few things that could be causing the problem. The heater [WR49X391], The defrost thermostat [WR50X55], and the defrost timer [WR9X482]. You can test the components to determine the problem. Using a meter you can test the thermostat, and the heater for continuity. If they read open then they will be bad and need to be replaced. If good then replace the timer.
I need to replace the wire set assembly used with defrost heater WR49x391. What is the part number for it? Do you have it in stock? Price
The wire that comes with the heater is not available as a separate part. If the wire that you are needing is coming from the wall of the refrigerator it is not a replaceable part.