Samsung Refrigerator Water Filter Replacement Guide (All Models)

Refrigerator style does not determine the correct filter. The model number does. Two Samsung French door refrigerators can use two completely different filters, and a filter that fits a Bespoke model won't necessarily fit a standard 4-Door Flex model, even though both are French door style refrigerators.

This guide covers how to replace and reset the filter across all current Samsung filter types, how to find the exact filter for your specific model, and what changes (and what doesn't) across Bespoke, French Door, Side-by-Side, and 4-Door/Flex refrigerators.

Samsung recommends replacing the water filter about every six months for optimal performance, according to Samsung's official filter replacement guidance. If your water dispensing speed changes noticeably before then, Samsung recommends replacing the filter regardless of what the indicator light says.

How to Replace the Water Filter in a Samsung Refrigerator

Before you start:

1. Find your refrigerator's full model number, including the suffix (see Section 4 for exactly where to look). The suffix can indicate a different production run with a different filter, so don't stop at the base model number.

2. Confirm your filter part number against that exact model, either from your existing filter's label or your owner's manual. Samsung refrigerators currently use one of three filter types: HAF-CIN, HAF-QIN, or HAFCU1, according to Samsung's own identification guidance.

3. Identify your filter's mechanism. HAF-CIN and HAF-QIN filters use a quarter-turn twist-lock: unlock counterclockwise, lock clockwise. HAFCU1 filters twist left to unlock and right to lock, with a notch that aligns to an arrow on the housing.

4. Have a small towel or shallow container ready. Some water in the line will drain out when you remove the old filter.

Steps to replace a HAF-CIN or HAF-QIN filter:

1. Turn off the water supply to the refrigerator.

2. Open the filter cover and rotate the old filter counterclockwise to unlock it, then pull it straight out.

3. Remove the protective cap from the new filter, insert it into the housing, and turn clockwise until it locks into place. Align the lock symbol with the indicator line on the housing.

4. Turn the water supply back on.

Steps to replace a HAFCU1 filter:

1. Turn off the water supply to the refrigerator.

2. Locate the filter and twist it left to unlock, then remove it.

3. Insert the new filter into the housing and twist right to secure it, aligning the notch on the filter with the arrow on the housing.

4. Turn the water supply back on.

After installing either type:

5. Flush the system. Samsung's general guidance is to dispense several gallons of water through the dispenser until it runs clear, which purges air and carbon fines from the new filter. The exact amount can vary by model; check your owner's manual if yours specifies a different figure.

6. Check for leaks around the filter housing after the first flush. A small amount of sputtering as trapped air clears is normal; a steady drip is not, and usually means the filter isn't fully seated or twisted to the locked position.

7. Reset the filter indicator light. See Section 2 below for the method that applies to your specific model.

It's normal to see black carbon fines on the outside of a new filter cartridge, a byproduct of the filter media settling during shipping. This is harmless and can simply be wiped off before installation.

How to Reset the Water Filter Light on a Samsung Refrigerator

The reset button or menu clears the six-month countdown timer so your next reminder is accurate. Samsung uses different reset methods depending on the control panel type, so confirm which category your refrigerator falls into before assuming a single button combination applies. These four methods are confirmed against Samsung's official support documentation:

• Standard models: Find the Filter Reset button on the door control panel, typically marked with a water droplet or grid icon. Press and hold for three seconds until the indicator changes color or the display returns to "Good."

• Family Hub models: From the home screen, tap Apps, then Fridge Manager, then Fridge Settings. Select Water Filter, then tap Reset.

• Models with arrow buttons: Use the arrow buttons to navigate to More Options, then select Filter Reset, and follow the on-screen prompts.

• RF4289 and RSG309 model families specifically: Open Settings, tap Water Filter, then press and hold Reset until the status changes.

If none of these match your control panel, or the reset doesn't take effect after trying the matching method, check that the filter is fully seated and the control panel's child lock isn't enabled, both of which can prevent a reset from registering.

Your specific model's user manual, available through Samsung's support site, is the authoritative source if your panel doesn't match any of the four categories above.

What Changes by Samsung Refrigerator Type?

Refrigerator type affects where the filter sits and how you access it, not which filter fits, a distinction worth repeating since it's the most common source of ordering mistakes.

Bespoke refrigerators typically use an internal filter housed inside the refrigerator compartment, often behind a panel near the top or in a dedicated compartment, depending on the specific configuration.

French Door refrigerators (non-Bespoke) commonly locate the filter inside the refrigerator compartment, usually in the upper right area or base grille, accessible without tools.

Side-by-Side refrigerators generally place the filter in the upper right interior compartment, similar in access to French Door models, though the exact housing style depends on the specific model generation.

4-Door/Flex refrigerators, Samsung's larger-capacity French door configuration with a flexible middle compartment, may use a different filter type than standard French Door or Side-by-Side models, which is part of why confirming the model number matters more than the general category.

Twin Cooling Plus, a cooling technology that manages refrigerator and freezer humidity separately, appears across multiple refrigerator types above and has no bearing on which water filter a given model uses. It's a cooling feature, not a filtration one, and doesn't factor into filter selection.

Across all four types, the reliable identification method is the same: check the filter part number printed on your existing cartridge, or your model number against Samsung's documentation, rather than assuming based on refrigerator style.

Find your Samsung Filter by Model Number

Where to find your Samsung refrigerator model number: Samsung refrigerators display the complete model number, including the suffix, on a label.

Common locations include the interior compartment wall (often on the ceiling or side wall of the fresh food section), the door frame or hinge area when the door is open, and occasionally the back panel near the compressor..

A specific compatibility conflict worth flagging: one third-party retailer listing states the DA97-17376B (HAF-QIN) filter is not cross-compatible with DA29-00020B (HAF-CIN) refrigerators, which is consistent with Samsung's own three-filter identification system.

Treat these as three genuinely separate, non-interchangeable filter families rather than three names for the same part.

Frequently Asked Questions

Is the ice maker filter the same as the water filter?

Yes, on Samsung refrigerators. A single filter cartridge serves both the ice maker and the water dispenser, since both draw from the same filtered water line inside the refrigerator. There isn't a separate filter to buy for each function.

How much water should I run through a new filter?

Samsung's general guidance is to dispense several gallons through the dispenser until the water runs clear, which clears trapped air and carbon fines from the new filter. Check your specific model's manual, since some models specify a different amount.

How do I remove a stuck old filter?

Confirm you're turning it in the correct direction for your filter type (counterclockwise for HAF-CIN and HAF-QIN, left for HAFCU1), and apply firm, steady pressure rather than excessive force. If it still won't budge, consult Samsung's troubleshooting guide or contact Samsung support, since forcing a stuck filter can damage the housing.

Why is my Samsung refrigerator leaking after I replace the water filter?

This is most often caused by the filter not being turned fully into the locked position, according to Samsung's own guidance. Remove the filter and reinstall it, confirming it's turned completely to the locked position. If the leak continues, the O-ring may be damaged, and the fix is a new filter with an intact seal rather than continuing to reuse the old one.

How often should I replace my Samsung filter?

Samsung's general recommendation is every six months, though this is guidance rather than a fixed rule for every model. If your water flow slows noticeably or your specific model's manual states a different interval, follow the model-specific guidance instead.

OEM vs. DFS compatible: which should I buy?

Samsung's official guidance recommends genuine Samsung filters and states that third-party filters may cause leaks or damage if they aren't a proper match. A DFS compatible replacement, verified against your exact model's Samsung specifications, is engineered to the same fit and performance specs at a lower price; the OEM version carries Samsung's own certification and design pedigree.

Confirm the specific certification standards for the exact product you're considering, since compatible filters vary in which NSF/ANSI standards they're certified to.

Can I use a different Samsung water filter in my refrigerator?

No. Match the filter to your refrigerator's exact model number and required part number, never by appearance, refrigerator type, or a filter that "looks similar" to your old one. Samsung's three filter families (HAF-CIN, HAF-QIN, HAFCU1) are not interchangeable, and using the wrong one can prevent a proper seal or fail to lock into the housing.

Sources

• Samsung, How to replace the water filter in a Samsung refrigerator (official US support)

• Samsung Canada, Guide to replacing the water filter in your Samsung refrigerator

• Samsung, Water filter troubleshooting guide