I have the Samsung RS261MDPN side by side fridge, and about once a week I have to take the back panel off and blow dry the coils to defrost the built up ice. What is causing this?
Answer Hello Joann. It sounds like you may have a defrost problem with the unit. You can test this with a multi-meter TJMA-DMT3. I will include a link at the end to assist you how to use the multi-meter if needed. On these, most of the time, the evaporator assembly will need to be replaced, if the heater is made into the assembly. Once the problem is repaired, you will need to thaw out the ice on the coils before the unit will operate properly. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
How to install the defrost sensor.
To be able to determine how to get into the unit we need to know the model of the unit. If you could provide the model number and email we may be able to get some information on how to replace the defrost sensor. Please post your model number with a new question on the parts page. http://www.appliancepartspros.com/modelnumber_locator.aspx
Refrigerator ices up, and stops cooling. Freezer is fine and I have replaced the fan already.
Answer Hello Lamont,
You will want to check the sensor on the evaporator coil for damaged or broken wires. Also check resistance of the thermistors. A bad thermistor DA47-00095E, DA32-00006W or heater will cause the unit to not defrost properly which will cause the coils to freeze over and cause no cooling issue.