In Part Three of Refrigerator Is Not Cold we will explore some other components that may be contributing to your refrigerator not working properly. Part One of this series covers the compressor and how to check and see if it is working properly. Part Two concentrated on the defrost system and the problems that can occur there which will cause your refrigerator to malfunction.
If you’ve checked these component areas and found them to be working properly there are a few other things that may be the problem, let’s explore them.
On most modern refrigerators Refrigerator Repair Los Angeles, the condenser coils, which expel the heat the evaporator coils on the inside gather, will be located either underneath the unit or on the back of the refrigerator. Generally ones located on the back do not use a fan to move air across them, they rely on being spread out over a wider area as a means for dissipating the heat. To make sure they work at their best, be sure they have plenty of room for air to flow over them, they should also not be in any area where they are exposed to external sources of heat such as windows, ranges or any type of arrangement where they get so much exposure to other heat sources that they can’t do their job.
If you suspect this is the problem on your unit, a good way to test this theory is to place a fan where it can blow directly on your condenser coils and see if this makes your refrigerator operate properly. If it does, that is a pretty good sign that your condenser coils are not situated in a place where they can perform their task naturally.
Many types of refrigerators will have the condenser coils located underneath the refrigerator, these will almost always have a condenser fan whose job is to move a sufficient amount of air across the coils to remove the heat absorbed from the inside. (This is why a good way to check your back coils is to put a fan on them.)
These models will also usually have some sort of cover in the back that you’ll need to remove in order to check the system. Often these are made of a sort of reinforced paper-board type material, but it is critical that they be in place. I have been called out to repair refrigerators only to find that the only problem was that someone had removed the back cover. This cover is often critical to the way air flows underneath the unit and must be in place for it to work properly.
Be gentle when you take it off for inspection. After removal you should check to see if your condenser fan is blowing. If the compressor is running and the fan is not blowing that is more than likely the problem, the motors have been known to short out, they are not that expensive or difficult to replace but they wreak havoc with a cooling system if not working because they are the critical part which moves the heat out of the bottom condenser compartment.
If your fan is working, check to see if the condenser coils have a buildup of dust and/or pet hair. I have seen many refrigerators shut down because the owners had pets with long hair and when they shed, the hair would get trapped in the condenser coils, (remember the fan is sucking in air from the room) and would accumulate over time to the point where the hair actually blocked the flow of air and the ability to remove heat.
Use care when trying to clean these bottom coils and be sure not to knock any parts out of place when doing so. It is not recommended that you lean a refrigerator over to do this as it will allow the compressor oil to run up into the system and get in places it should not, but if you do be sure to let the refrigerator stand upright for 24 hours before restarting. This is to allow the oil in the compressor time to return to it’s proper place.