Do I really need to change the water filter in my refrigerator?

Author: scraper  |  Last update: Tuesday, July 14, 2026

Yes, changing your refrigerator water filter is essential. Most manufacturers recommend replacing it every 6 months (or 300 to 500 gallons). Neglecting it compromises your water safety and appliance health.

What happens if I don't replace the refrigerator water filter?

Neglecting to change your refrigerator water filter leads to poor water quality, bacterial buildup, and potential appliance damage. As the filter clogs with trapped impurities, it loses effectiveness and can even release previously trapped contaminants back into your water.

Do water filters remove Cryptosporidium?

Yes, specific water filters can remove Cryptosporidium. Because this parasite is typically between 4𝜇m and 6𝜇m in size, physical filtration is highly effective if the filter pore size is small enough.

Is it really necessary to change your refrigerator water filter every 6 months?

While the 6-month timeline is a standard recommendation by manufacturers, the exact answer depends on your usage and your home's water quality. For light usage with city water, you can often stretch it to 9–12 months, but going much longer risks contaminated water and appliance damage.

What kind of water filter does a KitchenAid refrigerator use?

To determine the exact water filter you need for your KitchenAid refrigerator, you will need your fridge's specific model number. KitchenAid refrigerators primarily use EveryDrop filters (numbered 1 through 5) or KAD-series filters.

Do I Really Need to Replace My Fridge Filter? The TRUTH on Refrigerator Filter Effectiveness

What brand is the best refrigerator water filter?

The best refrigerator water filter brand is typically the OEM (Original Equipment Manufacturer) for your specific fridge, such as EveryDrop (for Whirlpool, Maytag, KitchenAid), Samsung, or GE. Off-brand alternatives like Waterdrop also offer excellent, certified budget-friendly filtration.

How often should I change the water filter in my KitchenAid refrigerator?

It is recommended that your KitchenAid water filter be replaced every 6 months, when the indicator light comes on, or as needed. A clogged or incorrectly installed water filter can reduce the water flow to the ice maker and dispenser, resulting in small ice cubes, reduced ice production, and/or longer dispensing times.

Can you get sick from not changing the refrigerator water filter?

Yes, an old refrigerator water filter can absolutely make you sick. As filters age and trap impurities, they can become a breeding ground for bacteria like E. coli or mold. Additionally, the filter’s carbon core stops working, allowing heavy metals and chemicals like lead back into your drinking water.

How long does a refrigerator water filter really last?

Most refrigerator water filters last 6 months or filter about 200 to 500 gallons of water, whichever comes first. After this point, the carbon inside the filter loses its ability to trap contaminants effectively, and the moist environment can become a breeding ground for bacteria.

Can I use my refrigerator without the water filter?

Yes, you can use your refrigerator without the water filter, but how you do it depends on your specific model. Many modern refrigerators require you to insert a "bypass plug" in place of the filter to allow water to flow to the dispenser and ice maker.

Are there any drawbacks to using a water filter?

Expensive Cost: The biggest disadvantage of a whole house water filter is that they can be expensive, with systems ranging from $300 to $2,000 and upwards. Although these systems can pay for themselves in the long term by reducing the need for plumbing maintenance and repair, the upfront cost is significant.

What are the first signs of Cryptosporidium?

Diarrhea, vomiting, stomach cramps, and weight loss are the most common symptoms. Dehydration is the main complication. People who have a healthy immune system usually recover without treatment. People with a weak immune system may get a more serious infection and need supportive medical care.

What is the best water filter brand?

There is no single "best" water filter brand because the ideal system depends on your home’s water quality, your budget, and whether you need an under-sink installation, a countertop unit, or a simple pitcher.

Can I still drink water if my fridge says change filter?

Using an expired refrigerator water filter can expose you to these harmful chemicals and contaminants: Lead—Harmful lead exposure can cause neurological, behavioral and health problems in children and adults. Heavy metals—Heavy metals include arsenic, antimony, cadmium, chromium, copper, lead, selenium and many more.

Can a water filter affect an ice maker?

Yes, a water filter directly affects your ice maker. A clogged or incompatible filter will reduce water flow, causing your ice maker to produce small, malformed cubes, make ice slowly, or stop producing ice entirely. It can also negatively impact the taste and smell of your ice.

Is it bad to not change a water filter?

As previously mentioned, an old water filter will make your water taste and smell bad, lower your water pressure, and fail to remove debris. While these alone should be good enough reasons to replace your filter, there are also health risks posed by expired water filter cartridges.

How many gallons is a fridge filter good for?

You should run 2 to 4 gallons of water through a new fridge filter before using it.

Can bacteria grow in filtered water?

Study: Bacteria can grow in faucet water filters. Water filters that you attach to your faucet are known to be good for filtering out heavy metals like lead and disinfectants like chlorine. But they're not designed to filter out bacteria that can grow in the filter itself.

Why is my refrigerator water filter not lasting 6 months?

Filter seems clogged

Your refrigerator water filter may not last the industry standard of 6 months. This depends on your water quality and usage. If your water pressure starts to slow, your filter could be clogged. First, check the system's valve to ensure it's not affecting the water pressure.

Why do I feel sick after drinking filtered water?

A water filter that makes you sick is likely harboring trapped contaminants, such as mold or bacteria, which can grow inside the filter media if it is old, neglected, or improperly installed. Common symptoms include gastrointestinal issues (diarrhea, stomach cramps), nausea, vomiting, and in some cases, allergic skin reactions to the material inside the filter.

Do I have to turn off water to replace a fridge filter?

Though most refrigerators don't require you to shut off the water supply before changing the filter, some brands do, which is why it's crucial to consult your fridge's manual for any specific instructions.

Is it okay to drink fridge water without a filter?

Whatever your reasons, it's time to think again and take a wiser step. Yes, many refrigerators are designed to run even if their water filter is not installed. However, running the system after removing the filter is not advised. Drinking unfiltered water can harm your health and make you sick.

What happens if I don't replace the refrigerator water filter?

Neglecting to change your refrigerator water filter leads to poor water quality, bacterial buildup, and potential appliance damage. As the filter clogs with trapped impurities, it loses effectiveness and can even release previously trapped contaminants back into your water.

Can I use my KitchenAid refrigerator without the water filter?

With the filter removed, the water system will continue to operate, bypassing the filter, and the clogged filter will not cause slow water dispensing or low ice production. However, you will need to install a new filter to have filtered water.

How long does a refrigerator water filter actually last?

Most refrigerator water filters last 6 months or filter about 200 to 500 gallons of water, whichever comes first. After this point, the carbon inside the filter loses its ability to trap contaminants effectively, and the moist environment can become a breeding ground for bacteria.

Previous article
Why did I have explosive diarrhea after eating?
Next article
Is dry cleaning carpet better than steaming?