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Fridge filter finder · makers' guides read October 2026

Ice Maker Making Small Ice? Check the Water Filter First

Small or hollow ice means the ice maker is not getting enough water before it freezes. The most common cause is an old, clogged water filter. A 10-second cup test tells you. If the filter is the problem, a new one fixes it, and you can find the exact filter for your fridge below.

The same test works if the water from your fridge door has gotten slow.

Normal ice cubes are full. Small or hollow cubes come out when too little water reached the ice maker before it froze.NormalFull cubes: themold filled with waterSmall or hollowToo little water got inbefore it froze
Samsung: small cubes come out when the ice maker "doesn't get enough water before it freezes."

The 10-second cup test

The cup test: hold a measuring cup under the water dispenser for 10 seconds. Samsung says you should get at least three quarters of a cup. LG says a full 8 ounce cup takes 3.5 to 8 seconds.1 cup3/410 sSamsung:at least 3/4 cupin 10 secondsLG:8 oz in 3½to 8 secondsLess than that = not enough water
  1. 1
    Time a cup of water. Hold a measuring cup under the water dispenser for 10 seconds. If you get less than the makers' amounts in the picture above (Samsung, LG), too little water is getting through.
  2. 2
    Take the filter out and try again. If the water now runs faster, the filter is clogged and needs to be replaced.
    • Samsung, Whirlpool: the makers say to do exactly this test.
    • LG: fridges from 2017 and newer run without a filter. Older ones need a bypass part first.
    • GE: do not take it out to test. GE says the dispenser and ice maker will not work without a filter or a bypass plug. GE sends a plug for free (800-GECARES). Or just put in a new filter and do the cup test again.
    • Other brands: check your manual before you run the fridge without a filter.
  3. 3
    Still slow with no filter? Then the filter is not the problem. Check the steps below.
Why GE owners should not pull the filter to test: GE's XWFE instructions say the dispenser and ice maker will not work without a filter or a bypass plug. Open GE's instructions (PDF) →
GE XWFE instructions, Filter Bypass Plug: To obtain a free bypass plug, call 800-GECARES. The dispenser and icemaker will not operate without either the filter or bypass plug installed.

If it is not the filter

Water passes through five places on its way to the ice maker. Any one of them can slow it down. The filter is the easiest to check and the one that wears out.

How water gets to the ice maker: your home's water, at least 20 psi; the water supply valve, open all the way; the water line, not pinched; the water filter, which clogs as it gets old; the fridge's water valve; then the ice maker and the door dispenser.Your home's waterAt least 20 psi (Samsung, LG)Water supply valveOpen all the wayWater lineNot pinched or kinkedWater filterClogs as it gets oldCheck firstFridge's water valveIf all else checks out: serviceIce makerDoor dispenser
  • The water valve is not fully open, or the line is pinched. Samsung and LG both say to check the valve behind the fridge and the line to it first.
  • Your house water pressure is low. Samsung and LG ask for at least 20 psi. GE rates its XWFE filter for 25 to 120 psi. Whirlpool notes that a reverse osmosis system under the sink can lower the pressure too.
  • A part has failed. If the valve is open and the water is still slow, Samsung says to call a plumber about the pressure, and LG says the fridge needs service.

Find the exact filter for your fridge

Read the part number on the label of your old filter, such as XWFE, EDR1RXD1 or HAF-QIN. Type it here, or pick your fridge's brand.

A fridge water filter cartridge. The part number, for example XWFE, is printed on its label.WATER FILTERXWFEThe part number is on the label.Type it in the box below.
GE XWFE (the brand's own)
Lead and cysts, PFOA/PFOS, traces of medicines
Certified by IAPMO R&T · 1 filter · has the chip your fridge checks for
$99.96 a year
Whirlpool EDR1RXD1 · also W10295370A, W10295370
MARRIOTTO Z001 · replaces the EDR1RXD1
Lead and cysts
Certified by IAPMO R&T · 3 filters
$18.12 a year
Samsung DA97-17376B · also HAF-QIN, HAF-QIN/EXP
Waterdrop WDS-F45 · replaces the DA97-17376B
Lead and cysts
Certified by NSF and IAPMO · 2 filters
$25.19 a year
LG LT1000P · also LT1000PC, LT1000PCS
Waterdrop Plus WDP-F46 · replaces the LT1000P
Lead and cysts, traces of medicines
Certified by NSF · 3 filters
$22.93 a year
Waterdrop Plus WDP-F19C, 3-pack · replaces the RPWFE
Lead and cysts, traces of medicines
Certified by IAPMO R&T · 3 filters · has the chip your fridge checks for
$62.66 a year
Whirlpool EDR4RXD1 · also UKF8001, EDR4RXD1B
Waterdrop Plus WDP-F07, 4-pack · replaces the EDR4RXD1
Lead and cysts, traces of medicines
Certified by NSF and IAPMO · 4 filters
$19.84 a year
GE MWF · also MWFP, GWF
Waterdrop Plus WDP-F13, 3-pack · replaces the MWF
Lead and cysts, traces of medicines
Certified by NSF and IAPMO · 3 filters
$25.99 a year
Frigidaire EPTWFU01 · also EWF02, PureSource Ultra II
Frigidaire EPTWFU01 (the brand's own)
Lead and cysts, PFOA/PFOS, traces of medicines
Certified by IAPMO R&T · 1 filter
$67.98 a year
Samsung DA29-00020B · also HAF-CIN, HAF-CIN/EXP
Waterdrop WDS-F27 · replaces the DA29-00020B
Lead and cysts
Certified by NSF and IAPMO · 3 filters
$19.33 a year
Whirlpool EDR3RXD1 · also EDR3RXD1B, WHR3RXD1
Waterdrop Plus WDP-F08 · replaces the EDR3RXD1
Lead and cysts, traces of medicines
Certified by IAPMO R&T · 3 filters
$28.66 a year
Frigidaire ULTRAWF · also PureSource Ultra
Frigidaire ULTRAWF (the brand's own)
Lead and cysts, traces of medicines
Certified by IAPMO R&T · 1 filter
$95.98 a year

Amazon prices as of November 12, 2026 at 12:18 PM ET. Prices can change; the price on Amazon is the one that counts.

Our pick for each filter is the cheapest one whose exact model code NSF, IAPMO R&T or WQA lists for lead (NSF/ANSI 53). It is the same pick as on our best refrigerator water filter page. Per year = 2 filters at today's Amazon price.

After you put in the new filter

  1. Make sure it is locked in. Whirlpool says a badly installed filter can reduce or stop the water flow.
  2. Run about 2 gallons through the door (about 5 minutes), as GE says to. This pushes out the air. The water may spurt at first.
  3. Throw out the ice in the bin. GE says to dump the first bin after a new filter. The next batches should be full size.
  4. Reset the filter light if your fridge has one. The steps are in your manual.

No ice at all is a different problem

This page is about small or hollow ice. If the ice maker makes no ice at all, the filter is rarely the cause. In one parts seller's repair records for a common Electrolux fridge, a new water filter fixed "ice maker not making ice" less than 1% of the time. A new water inlet valve fixed it 73% of the time (AppliancePartsPros). For no ice, check that the ice maker is turned on, then call for service.

Questions people ask

Why is the water from my fridge door slow?

It is usually the same problem as small ice: not enough water gets through. Samsung says you should get at least 3/4 cup in 10 seconds. If a new filter does not fix it, check that the water valve is fully open and the line is not kinked.

How often should I change my fridge water filter?

GE and Whirlpool say every 6 months. GE adds: sooner if the water flow to the dispenser or ice maker drops. Small ice is one of the first signs.

My ice is still small after a new filter. Why?

First make sure the filter is locked in place: Whirlpool says a badly installed filter can reduce or stop the flow. Then run about 2 gallons through the door, as GE says to, to push the air out. If the cup test still fails, check the water valve, the line and your house water pressure.

Sources