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Customer Questions and Answers for Water Inlet Valve Assembly by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18027165
Manufacturer Part Number: WP3979346

The Water Inlet Valve Assembly is an OEM part for Whirlpool washing machines.  This part controls the flow of water into the appliance during the fill cycle. This assembly consists of a valve that opens and closes to allow water from the household supply to enter the washing machine at the right times and in the correct amounts, depending on the selected wash cycle and water temperature settings.  

Causes of a bad water inlet valve can include sediment buildup, which restricts water flow, wear and tear that impairs the valve's operation, or electrical issues that prevent the valve from opening or closing properly.

Symptoms of a bad Water Inlet Valve Assembly include:

  • The washing machine not filling with water
  • Water filling too slowly or overflowing
  • Unusual noises during the fill cycle
  • Water not reaching the desired temperature

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

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Questions & Answers

For Whirlpool Water Inlet Valve Assembly (Part Number: OEM18027165)

1 Answer

Joe, To access the water valve on the unit you will need to use a flat blade screw driver and push up under the front of the control panel endcap. This will release the spring clips and you can roll the control panel up. Once this is done you will want to release the 2 clips holding the rear panel to the maintop. Once released you will disconnect the wire harness to the lid switch and then pull the cabinet off.

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1 Answer

Hello Will. You will need to use a flat blade and release the clips under the front of the control panel and flip the panel backwards and unplug the lid switch. Then remove the two brass colored clips and slide the cabinet off the frame by pulling it forward. You can now access and replace the valve 3979346 on the unit.

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1 Answer

Hello Fixxer, You will need to remove the cabinet from the unit to access the wires and outlet hose. There should be one screw, (usually 5/16 inch hex head), holding the water valve in position.

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1 Answer

Jeff, A quick and easy way to test. Start the washer, while it's filling unplug the power cord from the outlet(watch out for the arc) if the water stops flowing you'll need to check or replace the water level switch and air tube W10339326. If the water continues to flow, the fill valve has a sticky solenoid and will need to be replaced WP3979346. Just be careful and repeat the process a couple of times, to be sure.

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1 Answer

Dave, On the front corner of the control panel there is a sprig clip on either side that you would use a putty knife and push in on it. Once this is done you pull forward and it will release. Once released on both sides you will then roll the control panel up.

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1 Answer

Jose, Unfortunately the thermistor cannot be bypassed on the water valve. This is wired directly into the circuit and the unit will not operate properly without the thermistor in position.

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1 Answer

Hello Don! Yes, that is correct. If the unit is filling with water (dripping water into the unit) when not in use you'll need to replace the inlet valve part number WP3979346. Thanks!

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Volkan for Model Number MVWC300VW0

Hot water doesn't flow smoothly during fill up. It fills correctly for about 5-7 seconds, then it sputters erratically...then it fills correctly...then sputters. Warm water does something similar except it cycles the sputtering from warm to cold water. Cold water fills correctly without flaw. I unhooked the hot water line from the washer and filled a bucket to test the water valve/water line and it filled the bucket with a nice smooth flow. Is this a faulty water inlet valve?

1 Answer

Volkan, Check the screen on the hot water inlet and make sure that the screen is not clogged. If it is then clean the screen out. If no then the water valve is faulty and would need to be replaced.

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Volkan for Model Number MVWC300VW0

Upon water fill, if I select the temperature to warm or hot, the water pulses and causes water hammer issues. The screens on the water inlet valve are clean. Both water lines have no issues when the washer is disconnected and I drain into a bucket. The cold water fill is perfectly fine. This only happens with warm and hot filling cycles. Warm water fill pulses between cold and hot water. Hot water fill pulses on its' own. Warm and hot water fillup causes water hammering. Is this a bad water inlet valve assembly? BTW, this issue has occurred the entire time I've owned the unit. My water pressure is within specs.

1 Answer

Hello Volkan, The hammering noise is a phenomenon caused by the home plumbing. There is nothing on the unit that can be replaced to stop the hammering sound.

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