Fridges are electrical appliances that are used to store food and beverages at low temperatures. Fridges help maintain food by inhibiting the growth of bacteria, which can occur at room temperature. Most fridges have an adjustable thermostat for setting the internal temperature, and an exterior door to allow access to the internal contents. However, if you notice any unusual Knocking sounds coming from your Samsung fridge, it could be a sign that something is wrong.
Samsung fridges are as reliable as they come, but they do make a few sounds during their daily operation. Some of these noises are perfectly normal, while others could be a sign of trouble. For example, the rattle or knocking sound you hear may be due to something as simple as vibration and does not always indicate a serious problem.
Samsung Fridge Making Knocking Noise – Troubleshoot and Diagnosis
Whenever a Samsung refrigerator makes a knocking noise, there are a few possible causes. The noises could be coming from the ice maker fan or from loose water pipes within the fridge. If the cause of the noise is the ice maker, you can easily replace it yourself on a Samsung refrigerator by popping off the back panel and replacing the fan. On some Samsung refrigerators, there are plastic parts in the door that expand and contract as the temperature changes.
1. Build Up Of Ice Inside Icemaker
Think of your refrigerator as the main unit and the ice maker inside it as a separate appliance. The ice maker has its own thermostat, electrical connections, coils, and parts. The refrigerator doesn’t generate the cold air that cools and freezes the water; rather, it collects it from where you installed the ice maker location — in your freezer or through vents on the door.
In all refrigerators and freezers with an ice maker, there’s a fan inside. This fan helps keep the ice blocks nice and solid, so that when you put the tray in, your ice cubes will be ready for use. The fan can also help keep the fridge fresh.
Over time, the fan in your ice maker may begin to experience a buildup of ice, making it increasingly difficult to operate properly. While the issue is relatively easy to fix through an unplugging and refrigerant evacuation process, this prevents the fan from operating at peak efficiency. If you’ve ever used an ice maker that doesn’t produce enough ice or makes knocking noise, you may have experienced what a poorly operating fan looks like.
If you’ve noticed a knocking noise coming from your fridge and ice maker, it’s possible that the fan blades are being blocked by ice build-up around the cooling unit. Though you might hear the cooling fan spinning during normal use, the knocking or “chirping” sound indicates that frost or ice is binding to the fan blades and preventing them from spinning freely.
While the fix is straightforward, finding the right heat source to melt the ice and frost that’s built up around the ice maker fan is more tricky. You can try and create a DIY heating pad out of an old sock and a hot water bottle or something similar to that end.
Now, you may be tempted to use a heat gun or a hairdryer to help melt all that ice. Many online guides and YouTube videos might also suggest that you do this. However, that’s not the best solution. You risk damaging the ice maker’s parts by applying too much direct heat onto them.
To remove ice buildup in your refrigerator’s ice maker, the best way is to thaw or defrost your refrigerator until all the ice is gone from the Samsung fridge ice maker fan. Yes, it will take quite a bit of time before all the ice melts. Since it takes a lot of time, you can use this method to do it overnight. The next day, check to see if the ice has melted.
2. Loose Water Connection
Samsung kitchen fridges offer a range of great features — convenient, like the ability to dispense water or ice from the front door, or clever, like a clever air filter system. But for these high-tech systems to work at their best, you’ll need to make sure your home is suitable for them.
A refrigerator should provide the best possible user experience. This means that you shouldn’t have to worry about replacing water or filling up the dispenser. Fridges with direct water lines into them provide a convenient way to stay hydrated without needing to constantly refill the dispenser, saving your time and effort.
Water supply issues can sometimes cause the knocking sound you’re experiencing, as well as water stains on the back of your fridge. If this is the case, start by inspecting your water pipes and connections to see if they’re loose or leaking. Make sure that nothing is blocking the pipe or preventing it from connecting to the water source.
If you have noticed that ice is making clinks or tapping sounds in your ice maker, there may be a problem with the water connection. Inefficiently made connections cause this kind of noise, and they can also lead to other issues like slow filling of the tray and leaking if the connection isn’t connected properly. The only way to solve it is to tighten the nut.
You must resolve whatever issue you’re experiencing as soon as possible. Not only to prevent the issue from getting worse, but also to prevent your home’s water from coming undone and flooding onto your kitchen floor.
To fix this issue, you’ll want to inspect the back of the fridge where you’ll find the water pipes. If you feel any connections and they feel loose, strike a match and tighten the connections by hand. If they’re loose, tighten them with a wrench or pliers. You might be able to see if the pipes are loose or hear them when you’re not using the fridge.
As you tighten the water connection between those pipes and the fridge, remember to never over-tighten it. Over-tightening can cause a leak, which will be bad for your fridge and will also waste water.
3. Faulty Ice Maker
Samsung has added the cool and convenient feature of smart ice makers to several of its fridge models. The amount of ice your fridge makes will depend on which model you have, but you can rest easy knowing that each Samsung fridge with an ice maker will be able to keep up with your daily needs and more.
The knocking noise from your ice maker is a sign that something is wrong with the machine. When it happens, you might also notice that the ice maker isn’t making any ice; this is also a sign of a malfunctioning unit.
To fix the ice maker in your Samsung fridge, you need to replace it. You can do this in one of two ways: Order a replacement ice maker that matches the manufacturer and model of your current ice maker; or, if you have an extra ice maker on hand that’s identical to the current one, swap them out.
The easiest way to replace your ice maker is to assemble the new part, disconnect the appliance from its water source, and then unplug it from its power source. You’ll need to slid the replacement ice maker in place so that it sits flush with the back of your refrigerator. Finally, connect the ice maker’s electrical wires to their corresponding ports on the back of your fridge and plug the appliance into its power supply.
4. Broken Plastic Parts
In a refrigerator, the insides of all plastic components are crucial to the appliance’s operation. Plastic walls separate the fridge’s inner compartment from its cooling system. A plastic shelf or bin provides storage for food items and keeps them away from the primary cooling system, which is essential to preserving food’s freshness.
Understanding the thermal expansion of plastic is crucial to a fridge’s functioning. As it warms up and cools down, the plastic parts stretch out or contract several millimeters in response. These temperature changes also occur every time you open and close the door to your refrigerator, as well as during defrost cycles.
While refrigerators sometimes make clunking sounds during use, they aren’t necessarily signs of imminent failure. Older fridges that have a lot of plastic parts could make more noise than modern options, but the noise is normal.
If you’re experiencing knocking noises from your fridge, the likelihood is high that the noise originates from one of these plastic parts. Let’s talk a bit more about the noise. The knocking sound is normal, and it happens when the plastic parts in your fan expand with heat and contract when cooled down.
The location of your refrigerator will affect the stability of its cooling system. And the stability of that cooling system can have an effect on the noise it makes. To improve the performance and reduce noise, consider these points.
Placing your refrigerator in a slightly different spot than you’re probably used to can have a huge impact on its performance — and therefore, on your grocery bill. For example, an appliance such as a fridge should be placed at least six inches away from other objects in your kitchen or any potential vents or heating sources.
In addition, to reduce the noise you hear, consider keeping your refrigerator in a cooler spot. You can also keep the door closed as much as possible when not opening it to get items out or put items back in. This will keep warm air from circulating when you open the door and also reduce the temperature fluctuations whenever you open and close the fridge.
Hi there! I’m Sam Hendricks, and I’m a repair technician and expert. I created this website to help people like you save money and time by fixing your own appliances.
Over the years, I’ve seen people spend a lot of money on unnecessary repairs or replacements. That’s why I decided to share my expertise and create easy-to-follow guides for fixing appliances on your own.