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Customer Questions and Answers for Dual Water Inlet Valve by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18018171
Manufacturer Part Number: WP2188542

This dual water valve is an OEM Replacement Part intended for use with Whirlpool refrigerators that feature both a water dispenser and an ice maker. The purpose of this refrigerator water inlet valve is to supply the necessary water to both the ice maker and the water dispenser in a controlled manner. While its appearance may vary from the original part, it maintains identical functionality and is authorized by the manufacturer as a direct replacement.

Causes of a bad valve can include mineral buildup from hard water, wear and tear over time, or electrical issues. A malfunctioning valve can lead to problems with water flow, affecting both the ice maker and water dispenser.

Symptoms of a bad inlet valve may include:

  • Insufficient ice production or no ice at all
  • Low water pressure or slow water flow from the dispenser
  • Water leakage from the valve area

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

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Questions & Answers

For Whirlpool Dual Water Inlet Valve (Part Number: OEM18018171)

1 Answer

Hello Mario, The water valve is a good place to start but you should probably dis-connect the water line at the valve and see if the water dispense button will cause the valve to open. If it does, your water tank could be frozen. This can be corrected by removing the drawers in the bottom of the fresh food compartment and blowing a hair dryer at the water tank for 10 to 15 minutes. If this turns out to be the issue, you should set the freezer setting to one number warmer and set the fresh food compartment one setting COLDER. I know this sounds backwards, but think of it like this: Cold air is heavier than warm air. That means that the cold air will settle to the bottom of the unit while the fans are not running. The setting of the fresh food compartment colder will turn the fans on more often which will keep the air stirred up. This will prevent the water tank and items in the drawers from freezing.

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1 Answer

Hello John. If icemaker is new, and the fill tube is not frozen, you will need to replace the water valve WP2188542 on the unit.

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1 Answer

Hello Warren, Thaw the water line out with a hair dryer. Since the line is frozen up, either the new valve you put on has failed or there is low water pressure to the water valve from the supply line. You see, the water valve is closed solely by water pressure. If the water pressure is low, the valve will close too slowly and the water will "weep" into the freezer compartment through the fill tube and freeze before it can drip out of it. There is the slight possibility that the issue was a water pressure issue to begin with. It will sometimes take a while to freeze the fill tube up completely if the pressure issue isn't too severe. In other words, if you're on the borderline of enough water pressure and the ice maker happens to be filling when a toilet is flushed, someone is taking a shower, the dishwasher is filling, etc., the amount of ice that is accumulated will be small enough that it will take a while to completely block off the water flow.

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1 Answer

Hello Emma, You need to check the water pressure to the unit. You see, the water inlet valve is closed by water pressure. If the shut-off valve is partially closed or stopping up, or the water line is crimped, this will cause the valve to close too slowly, causing an overfill situation. If the water pressure is good at the back of the unit, the water valve WP2188542 is mal-functioning and closing too slowly, causing the ice maker mold to overfill.

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1 Answer

Hello JohnC. There is no need to remove the cover to replace the water valve. The water valve WP2188542 is located behind the unit and is where the supply line from the home connects to the refrigerator.

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1 Answer

Hello Adam, You need to check the water pressure that is supplied to the unit. If the water pressure is too low, the valve, since it is closed solely by the water pressure. If the water pressure is too low, you will never get the ice maker to operate properly. Too low by the way is approximately 40 P.S.I. If this isn't the case, you could have a bad ice maker assembly in which the points are sticking.

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1 Answer

Hi Matt. Did you find the water-line from the water valve to the fill tube off when you cleaned the frozen fill tube? If the fill tube is frozen it is because the low pressure keeping the water dribbling up into it from the partially open water valve part # WP2188542. Make sure the supply water line is not kinked when pushing the unit back into place. Most of the time it is just the failed water valve not mechanically closing internally. The pool of water is from the water line delivering the water as commanded by the ice maker needing refilled after ice ejection. See if there is a small pin hole in the plastic water valve body. This can be hard. Look under the freezer door and see if water line coupling has broken. Make sure the drain extension hose has not fallen off the freezer drain tube. See if any inner cabinet bottom has not filled and is leaking water under the door gasket. Thank You.

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1 Answer

Hello Larry, The water valves with threads have to have compression nuts to install. The old ones were all like this and you would use the nuts off of the old valve to install them. The part number for the 1/4 inch nut is WP627018. This is the one that leads up to the icemaker. The 5/16 inch plastic compression nut is no longer available without purchasing a 5/16 to 5/16 compression union. This will get you two of the 5/16 nuts for a dollar more than the 1/4 inch nut costs. Ordering these two parts will get you there.

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