How to change a refrigerator water filter: Whirlpool, Samsung, LG, GE, Frigidaire

If your fridge water tastes weird, your dispenser flow has dropped to a trickle, or the change filter light has been on for a month, you're overdue. Most refrigerator water filters are designed to last about 6 months or 200 gallons, whichever comes first. The swap takes 5 minutes on most fridges and you don't need any tools. Below is exactly how to find which filter you need, where it lives, and how to swap it on Whirlpool, Samsung, LG, GE, KitchenAid, Maytag, and Frigidaire fridges. Plus the small steps almost everyone forgets that prevent leaks afterward.

How to find the right filter for your fridge

Three ways, easiest first:

• Look at the old filter. The part number is printed on the side, usually in this format: EDR1RXD1, DA29-00020B, LT700P, MWF, WF3CB. Search that number on Amazon and you'll get the right replacement.
• Look up your fridge model. The model sticker is inside the fridge cabinet, usually on the left wall or behind a crisper drawer. Search "model number + water filter" and the brand site or Amazon listing tells you which filter fits.
• Check the manual. The water filter section lists the part number. If you don't have the paper manual, search the model number plus PDF.

The most common filter codes by brand:

• Whirlpool, KitchenAid, Maytag, Amana family: EDR1RXD1 (Filter 1), EDR2RXD1 (Filter 2), EDR3RXD1 (Filter 3), EDR4RXD1 (Filter 4)
• Samsung: DA29-00020B (most French door models), HAF-CIN, DA29-00003G
• LG: LT700P, LT800P, LT1000P
• GE and GE Profile: MWF, RPWFE, XWF
• Frigidaire and Electrolux: WF3CB (PureSource 3), EPTWFU01 (PureSource Ultra II), EWF2CBPA

If your filter has a different code, search "[your code] replacement" and you'll find direct fits.

OEM vs aftermarket: what's actually worth it

OEM filters from the fridge brand cost $40-60 a filter. Aftermarket from reputable third parties (NSF certified) cost $15-25 a filter and perform almost identically. The difference:

• OEM seals are slightly tighter, fewer leaks on first install
• Aftermarket housings vary in quality, the cheapest ones cause drip issues
• Aftermarket NSF 42 certified filters remove chlorine, taste, and odor as well as OEM
• NSF 53 certified filters (rare and pricier) remove lead and mercury, OEM doesn't always do this

The sweet spot is mid range aftermarket from a brand with thousands of reviews and NSF certification. Avoid the $5 generic filters, those are where seal failures and bad taste reports come from.

Where the filter is located

Modern fridges put the filter in one of three places:

• Inside the fridge, top right corner: Most Whirlpool, KitchenAid, Maytag French door fridges. Quarter turn release.
• Inside the fridge, behind a swing out cover: Most Samsung and some LG models. Slide out type.
• Behind the bottom front grille: Older Whirlpool and most GE side by side fridges. Push button release.

If you don't see one in any of these spots, your fridge might not have a built in filter. Some basic models route water straight through with no filter.

Step by step: how to change the filter

1. Turn off the water (optional but recommended). The shutoff valve is behind the fridge or under the kitchen sink. Closing it during the swap means zero risk of a flood if the new filter doesn't seat right. You don't have to do this step but the 30 seconds saves a possible mop up. 2. Place a towel under the filter. Especially for in-cabinet filters, a small amount of water always drips when you remove the old one. 3. Remove the old filter. Three release types:

• Quarter turn: Twist the filter counterclockwise about 90 degrees, it pops out toward you
• Push button: Press the release button next to the filter, the cartridge ejects
• Pull out: Some Samsung models, just grab and pull straight forward

4. Unwrap the new filter. Remove all plastic caps from both ends. Sounds obvious but people forget the inlet cap and wonder why no water comes out. 5. Insert and lock the new filter. Match the orientation to the old one. Push in firmly until you feel the click, then twist if it's a quarter turn type. Don't over tighten, hand tight is enough. 6. Turn the water back on if you closed it. 7. Flush the new filter. Hold a glass under the dispenser and run 4 gallons of water through (about 4-5 minutes total). The first water out will be milky or have black specks of carbon dust, that's normal. Keep flushing until the water runs clean. Skipping this step means the first glasses out taste off and the ice will be cloudy for a week. 8. Reset the filter indicator light. Most fridges have a button labeled FILTER, FILTER RESET, or just RESET, hold it for 3-5 seconds. Some Samsung models need to hold the ICE TYPE and CHILD LOCK buttons together. Check your manual if you can't find the right combo.

Brand specific notes and gotchas

Whirlpool, KitchenAid, Maytag. Quarter turn filter in the top right of the fridge cabinet. Reset button is on the dispenser display. Some KitchenAid models need you to hold WATER FILTER for 3 seconds to reset the indicator. Samsung. Slide out type, located on the inside top of the fridge or in a swing down panel. Reset is usually holding ICE TYPE + CHILD LOCK for 3 seconds. After install, the dispenser may need a hard reset (unplug fridge for 1 minute) before the new filter is recognized. LG. Twist out filter inside the fridge cabinet. Reset combo varies by model, check the manual. Some LG models with InstaView won't dispense water for the first 24 hours after a filter swap until the system runs a self test. GE and GE Profile. The MWF and XWF filters look similar but are NOT interchangeable, GE redesigned the cap on the XWF specifically to block aftermarket fits. If you have an XWF model, you basically have to buy genuine GE or risk it not seating. The MWF takes plenty of aftermarket options. Frigidaire and Electrolux. Push button release at the bottom front of the fridge or inside the cabinet. The PureSource line uses different sizes (1, 2, 3, Ultra), make sure you match your specific code, the filters look almost identical. Door dispenser models. Some side by side fridges have the filter mounted in the back wall behind the deli drawer. Pull the drawer all the way out and you'll see it. These are the easiest to forget about.

Frequently asked questions

How often should I change my refrigerator water filter? Every 6 months or 200 gallons, whichever comes first. If your water is hard or you have a lot of sediment, every 4-5 months. The change indicator on the fridge tracks gallons, not time, so don't ignore it just because the filter looks fine. Can I run my fridge without a water filter? Yes. Most fridges have a bypass plug that fits where the filter goes, the water just runs through unfiltered. Without bypass plug or a filter, the water dispenser won't work. The bypass plug usually came with the fridge but you can buy them for $5-10. Why is my water cloudy or hissing after a filter change? Air in the line. Run 4-5 gallons through the dispenser to purge it. Should clear within a day. If it doesn't, the filter isn't seated right, pull it and reinstall. Why does my water taste bad after changing the filter? The first 1-2 gallons through a fresh filter pull out manufacturing residue and carbon dust. Flush properly and it goes away. If it persists, the filter is defective or aftermarket and not NSF certified, swap it for an NSF rated brand. Will an aftermarket filter void my fridge warranty? No. The Magnuson Moss Warranty Act prevents manufacturers from voiding a warranty just because you used a third party part, unless they can prove the part caused the failure. They almost never can. What does the change filter light mean if I just changed it? You forgot to reset the indicator. Hold the FILTER or RESET button for 3-5 seconds. Can a clogged filter break my ice maker? Yes. Low water flow from a clogged filter is one of the most common causes of small or hollow ice cubes and stopped ice production. See refrigerator ice maker not making ice for the full ice maker checklist. What if my dispenser stopped working entirely? Filter is the first suspect, but if a new filter doesn't fix it, the inlet valve or supply line might be the issue. See refrigerator water dispenser not working for the deeper troubleshooting.