The usually measured rumbling of the unit is perceived as normal, so it is often not even fixed. However, some sounds are really alarming with their strangeness. Let us consider which of them are the signal of malfunction and which are quite harmless.   Clicks If you have noticed that your fridge is making strange noises (they may be not audible, but muffled), then first of all check how the freezer is working. If the food in it appears to be defrosted, or fresh ice has appeared on it, you should call a repair technician right away.   – Breakdown of the compressor motor. If this part overheats and triggered the starting protection relay, then after a series of loud clicks, the compressor turns off, and the refrigerator stops functioning. Checking the freezer will allow you to notice this almost immediately; – Failure of the starting protection relay. If the clicks occurred immediately after the refrigerator lost light, you will need to replace the relay; – Unbalanced mounting of the motor. In this case, the freezer will continue to work, and the light will not disappear. However, the disturbing clicks will not stop until the motor mount is debugged.   Checking the operation of the freezer allows you to quickly diagnose refrigerator motor problems   If everything is fine and the freezer is running normally, it’s probably due to temperature fluctuations. Constant draught or a switched-on oven can cause deformation of plastic parts, from what clicks occur.   Rumbling, buzzing, and gurgling   Sounds such as gurgling, slight hissing, and overflow of liquids are not a cause for concern. Of course, it’s worth checking to see if there’s liquid under the refrigerator, but almost always the gurgling just means it’s flowing through the freon tubing.   If, on the other hand, the unit gurgles, purls, and pretends to be a spring creek, but does not freeze, it indicates a freon leak. You won’t be able to fix it without a handyman.   Most often the leakage is in the places of factory soldered piping (locking joints), in the steel perimeter heating circuit of the freezer, or in the evaporator of the refrigerator   Crackling Crackling is most often caused by improper refrigerator operation. With increased frosting, an ice crust begins to crack on the surface of the evaporator. Try defrosting your refrigerator, drying it naturally, and plugging it in again.   By following the storage instructions in your refrigerator’s owner’s manual, you can reduce ice buildup and cracks.   If you’re renowned for your neatness and keeping an eye on the condition of appliances in your home, however, the following faults may be the cause:   – broken thermostat; – Freon leakage; – clogged capillary tube; – the wear and tear of the rubber seal (according to the statistics, this is the reason in 90 percent of cases causes the increased formation of ice) – Frost penetration of heat insulation; – The electromagnetic valve malfunction.   All of these breakdowns must be diagnosed and repaired by a San Diego Appliance Repair Service refrigerator repair technician. Without experience and the proper tools, you can only do so much already.   My old refrigerator lived for twenty years. During that time, I changed the rubber gasket three times. As soon as I began to notice that the freezer did not close tightly, and ice appeared literally in a couple of weeks, I immediately called a master. The repair work was quite inexpensive, and the compressor became much easier to work. And the sounds the unit made immediately returned to normal. Gone was the crackling sound reminiscent of a walk through a winter’s thicket.   Humming A humming sound is the most common on the list of alarming symptoms of refrigerator malfunctions. And here you should be sure to keep in mind that the steps for figuring out the cause of the humming are different for new and older units.   New refrigerator hums The majority of modern models have the upper limit of permissible sound intensity not exceeding 40 dB. If the humming is louder, the reason can be the following:   – The shipping bolts have not been removed. These parts fix the springs to which the compressor is attached. You can remove them yourself, without calling a master; – Incorrect installation. If the refrigerator has no gaps in the furniture or wall, the humming sounds will never stop. Check this point yourself, and the call to the master can be postponed for a long time; – Careless loading of products. Even a single glass jar pressed tightly against the wall of the refrigerator can cause a loud humming sound, let alone if the unit is clogged with products and containers. In this case, it is also up to you to eliminate the cause of the extraneous sounds; – The increased intensity of humming during and after switching on. Here, too, it is not necessary to worry, this is a normal process of starting the refrigerator motor.   Old refrigerator hums The most common causes of humming in an old unit are:   – Wear and tear on the compressor motor. In this case, there are backlashes of parts or decompression of the motor. Here there is only one option – to call a master and change the compressor; – malfunction of shock absorbers of the motor. Here either completely change the compressor or adjust the shock absorbers. Without a master also it is impossible to understand; – burnout of electric heater. A serious breakdown, which only an experienced master can diagnose. Requires replacement of several parts; – Breaking of the cooling mode of condensers. It happens because of the wrong location of the refrigerator. If it stands in a room with poor ventilation or near a stove, the compressor has to work at wear and tear. This is something you can do on your own, just keep your refrigerator away from radiators, stoves, and other heat sources.   It’s time to call for professional appliance repair in San Diego county. San Diego Appliance Repair Service is here to help with professional and experienced appliance repairs.   Contact us   (619) 719-5005   [email protected]