Mar 252011

Did you recently open your refrigerator door and notice the center divider and door seal are warm or hot to the touch?  This will happen on Kenmore refrigerators caused by one of two things. Kenmore uses a condenser fan motor on the rear by the compressor. The first thing to check is the actual condenser coils.  I know you have heard “clean your refrigerator condenser coils” before, and if not you should be cleaning them every 6 months at least.  If the refrigerator condenser coils are dirty, the freezer and or the refrigerator seals may become warm to the touch.  The second most common reason for this issue is the fan motor next to the compressor can stall. The condenser fan motor draws air across the compressor keeping is cool. When the fan stalls, the compressor becomes overly warm and the heat transfers into the refrigerator mullion. The mullion strip is also commonly referred to as the divider between the refrigerator and freezer.

A volt meter is needed to verify proper voltage is present in the event the fan motor has stalled.  Often, pushing the fan motor past the stall spot will start the motor. Depending on the make and model of your refrigerator, the voltage at the condenser fan motor may vary.  Some refrigerators use AC voltage and other refrigerators use DC voltage currents.  On most kenmore refrigerators the condenser motor voltage is 110 volts ac. If you require further assistance and would like to speak to an Appliance Technician post your question in our DIY repair forum.

Kenmore Refrigerator Repair forum

Mar 242011

Some Sub Zero refrigerators have electronic control boards, actually most modern Sub Zero refrigerators do. The control board on the refrigerator does a lot. The control board tells the compressor when to come on, sends voltage to the lights fans, so on and so forth. If the refrigerator has an internal problem, Sub Zero has the logic in the board programed to display an error code in the digital read out. One of the more common Sub Zero refrigerator code is error code 50. The code 50 means excessive compressor run time, more often than not resulting from a leaking evaporator. Unlike most residential refrigerators, Sub Zero uses two compressor and two evaporators. This means that if one side stops cooling it wont affect the other side (refrigerator side and freezer side).

The first thing that needs to be done is to examine the evaporator itself. The back panel needs to be removed to have a look at the coils. The coils should have 1/16 frost from top to bottom. In most cases with this error code, the evaporator will only have frost in the upper left corner, this means you have a freon leak. If you are unable to remove the back panel and would like to speak with a technician, you can do so by clicking on the link below.

Sub Zero Refrigerator Repair Forum

Finding the coils with a full frost pattern would indicate a dirty condenser or failed condenser fan motor. Several other things can cause this issue and tests would need to be made to determine the exact failure. If needed, we would be happy to assist you.   Sub Zero refrigerators can be simple to work on; we know these units well and can answer or review any question you have.


Mar 172011

The Whirlpool top mount refrigerator is one of the most common residential refrigerators in America today.  Whirlpool also makes most of the Kenmore brand top mount refrigerator freezer units.  On top mount refrigerator freezers, the freezer section cools the refrigerator section.  When the evaporator fan motor fails behind the back wall inside the freezer, the refrigerator section will warm up.  Replacing the evaporator fan motor is a simple process on top mount refrigerators.  Testing the refrigerators evaporator fan motor is simple with the correct tools.  The fan motor needs 110v to turn on and cool the refrigerator. If power (120 volts) is present between the two fan motor terminals the motor needs to be replaced.

Accessing a Whirlpool or Kenmore top mount refrigerators fan motor is simple.  Start by removing the ice maker.  There are three screws which mount the ice maker to the side wall in the freezer section. Remove the three screws going into the side wall, and the ice maker will lift up and off.  The wire harness will need to be disconnected from the ice maker.  Next, the two 1/4 inch screws on the top of the rear panel need to be removed. Now the back panel will pull out at this point, giving you access to the evaporator fan motor.

You can ask your refrigerator repair question in our DIY Appliance & Refrigerator repair forums in the link below.

DIY Appliance & Refrigerator Repair Forum