Hi @draodyek ,
Your model has two evaporator units. One for the refrigerator and one for the freezer.
If the freezer is not getting cold enough then there may be a problem with the evap fan or the temp sensor in the freezer compartment. Worst case would be a problem with the freezer section of the sealed system as there is only the one compressor.
If the freezer evap unit is iced over then there is a defrost problem e.g. faulty defrost heater, a faulty bi-metal defrost thermostat, blocked drain tube etc
Here’s a link to the service manual. Go to p.56 to view the diagnostic procedure and check if there are any error codes etc.
Here’s a link to the parts which may also help. If you need parts then there are other suppliers online that may suit you better. Just search for RF30HBEDBSR/AA parts to get results.
UPDATE:
Hi @draodyek ,
This is taken from p.56 and p.59.
It seems reasonable English to me. Just takes a bit to work it out if you’re not used to the procedure
(click on image to enlarge for better viewing)
Hi @draodyek
5F is 27° below freezing. (freezing point is 32°F)
You say that the freezer is not freezing but the temperature indicated says that it is.
You may have to get a thermometer just to check what the actual temperature in the freezer is.
It may be a faulty freezer temperature sensor that is telling the control panel that it is cold enough when it isn't.
The freezer temperature sensor is part #14-2 in the freezer parts diagram in the parts link I posted before.
Here’s an image showing the resistance table for the sensor. It is a 502AT thermister. Disconnect the power from the refrigerator and then disconnect the sensor from the wiring harness and use an Ohmmeter to measure the resistance value of the freezer temperature thermsitor using the chart and see what temperature it corresponds to.
The chart is in Centigrade so you will have to convert to Fahrenheit. Just to give you an idea 5°F is approx -15°C so the resistance value is 25.66KΩ. Of course this will change as the temperature increases when you have the thermistor out of circuit etc
(click on image to enlarge for better viewing)