An increasing number of refrigerators, including models made by popular manufacturer Samsung, will show a red light on the water filter at certain points. If your refrigerator is new or you have not noticed it before, you will understandably ask yourself — why is my Samsung refrigerator filter light red?
A Samsung refrigerator filter light will turn red to indicate that it is time for the water filter to be changed. Refrigerator filters must be replaced every 6 months to ensure they are effective and removing sediment and other impurities from the water. The red light is a reminder to change the filter, but it does not necessarily mean the filter needs to be changed immediately.
Trying to figure out exactly what the red filter light means and why it’s on can be confusing. Keep reading to understand the action you should take if your refrigerator filter light turns red.
Read my ultimate guide on refrigerator filters.
Table of Contents
Is Your Samsung Refrigerator Filter Light Red On?
Water filters can be found on many refrigerators where there is a direct connection to the water supply. This is typically the case when the refrigerator provides chilled water or ice-making capabilities, which is something that more and more modern refrigerators are doing in order to satisfy consumer demand.
The role of a water filter is to remove different contaminants from the water. This can cover many different substances but typically refers to particles such as:
In order to remove different types of particles from the water, a few different approaches are taken.
| Key Takeaways |
| Red light signals filter change |
| Replace filter every 6 months |
| Filters remove contaminants |
| Light color indicates filter usage |
| Reset light after filter change |
| Regular changes maintain quality |
1. Activated carbon needs to be replaced on your Samsung fridge
Activated carbon is a form of carbon that has been treated in order to significantly increase its surface area. Increasing the surface area is important because it maximizes the chance of the substances in the water coming into contact with the carbon, which can then react with certain substances to effectively remove them from the water.
The best example of this is chlorine, for which activated carbon is considered a reducing agent. This means that as the chlorine passes over the surface of the activated carbon, a reaction can take place where electrons — tiny charged particles that orbit the chlorine atoms — are transferred to the chlorine, reducing it to a chloride ion.
This process happens extremely quickly, and for this reason, activated carbon is considered extremely effective at removing chlorine from water. This is a very desirable removal, as chlorine is often responsible for the water that does not taste appealing.
2. Water particle filter needs to be replaced
By the nature of having to pass through a restricted space, water filters are also generally effective at removing particles over a certain size. This is called mechanical filtration and serves to remove particles that are too big to pass through the filter.
Mechanical filtration is useful for larger particles, which include rust and dirt, which can often make their way into the water as a result of leaky or old pipework. While it is rare that these particles cause health issues, finding sedimentary particles in water is visually unappealing and so certainly undesirable.
3. Water filter light indicators
The way that Samsung indicators work is very similar to many other popular brands. It’s not feasible for a refrigerator to be able to tell directly from the water filter how close it is to becoming ineffective, and so instead, it uses a proxy to enable it to give a ‘best guess’ of the state the filter is in.
There are generally three different states and four different colors for Samsung indicator lights:
- Normal – Blue/Green
- Close to Replacement – Orange
- Replacement recommended – Red
This means that the indicator is not always completely accurate but is instead an indicator of another measure. Many refrigerators will have the indicator light change color after a certain amount of time. For example, Whirlpool refrigerators often show that the filter needs changing after six months of use.
Samsung, however, also uses a measure of how much water has passed through the filter, which is more accurate than just a measure of time but does still need to make assumptions on the average quality of water coming into the refrigerator.
A water filter that has not had sufficient water pass through it is typically either green or blue, depending on the model of the Samsung refrigerator that is owned. The light will usually turn orange once the water filter has had 450 gallons of water pass through it or five months have passed. The indicator light will turn red once 500 gallons have passed through or six months have passed.
Read my related articles on Samsung refrigerator filters:
How to Replace Samsung Refrigerator Water Filter
Can I Run My Samsung Refrigerator Without the Water Filter?
How Do I Reset the Red Light on My Samsung Refrigerator?
When a water filter is replaced, the refrigerator system is not able to automatically detect that this is the case. As a result, the refrigerator owner needs to let the refrigerator know that the water filter is new so the monitoring cycle that controls the water filter lights can be restarted.
The exact way to adjust this setting on your Samsung refrigerator will be dependent upon your model, and in all cases, it’s always worthwhile to check your instruction manual so as to be sure of the guidelines that are specific to your model.
If you don’t have these to hand, though, it’s generally the case on Samsung refrigerators that the control for the indicator light will be hidden in the settings, which are accessible via the display.
Many Samsung refrigerators require you to use the button reserved for another purpose and depending on the model. This may be:
- The alarm button
- The water button
- The fridge button
In each of the cases, the refrigerator requires the user to hold down the button for three seconds in order for the new water filter to register. At this point, there is usually an audible beep noise to indicate that the instruction has been understood — but even if this is not the case, you should see the indicator light change from red (or orange if you changed the water filter early) back the color for the normal state (either green or blue).
More About Samsung Refrigerators and Their Filter System
Filter Indicator on your Samsung fridge
The Samsung fridge is designed with a filter indicator to alert users when it’s time to change the filter. This indicator is an essential feature that helps maintain the cleanliness and safety of your fridge water and ice. The filter indicator turns red when a replacement filter is needed, ensuring that you are always aware of the condition of your refrigerator water.
Samsung refrigerator control panel
The control panel on your Samsung refrigerator is an intuitive and easy-to-use interface that allows you to manage various settings, including the filter indicator. When the filter light turns red, it means the Samsung water filter needs to be replaced to ensure the continuous supply of clean and fresh refrigerator water.
How to reset Samsung
Once you have replaced the Samsung water filter, it’s necessary to reset the filter indicator to clear the red light. To reset the filter light, press and hold both buttons at the same time for three seconds on the control panel. This simple process will reset water problems associated with the water filter indicator, allowing your Samsung fridge to continue monitoring the filter’s life. A filter reset is easy once you know how it’s done.
Refrigerator filter
Samsung refrigerator filters are designed to remove impurities and contaminants from your fridge water, ensuring that you and your family have access to clean and healthy water. External filters are available for purchase and can be easily replaced when the filter indicator turns red. Regularly changing your Samsung water filter will help prolong the life of your appliance and provide you with safe and refreshing fridge water.
Final Take on Samsung Water Indicator
It’s clear that while you do not need to rush out and buy a replacement filter immediately if you see the filter light turn red, it’s probably time to think about how much you’ve used your water filter since the last replacement and whether it could be beneficial to the taste and quality of the water your household is drinking to replace your filter with a new one. Check with Samsung water for information about your Samsung fridge filter.