Category Archives: Dishwasher

If your dishwasher is not filling with water or filling with water while it is not in use then you should test the water inlet valve.  This free video shows step by step instructions on how to test your dishwashers water inlet valve.  Other videos online show to test the water inlet valve by ohming the solenoid on the valve.  This test is not very conclusive and it doesn’t actually tell you if the valve is working properly.  The testing process shown in the video below is the only conclusive way to test the valve.

If you find that you have a bad water inlet valve you can shop for a new one on our online store by searching with your appliances model number, or entering the part number off of the water valve here: https://partsdr.com/appliance-type/dishwasher-parts/valve-parts/ We sell new OEM appliance parts for Whirlpool, Maytag, Kenmore, Amana, Estate, Roper, Frigidaire, Electrolux, Tappan, Westinghouse, Kitchen Aid, Jenn Air, Bosch, LG, Samsung, and more.

Items used to make test cord:

Cord:  https://partsdr.com/part/wx09x70910-power-cord/
Spade terminals: http://amzn.to/2u7aaGt
Crimping tool: http://amzn.to/2uZhQqL
Wire stripper: http://amzn.to/2t2uPGX

Items used to make battery pack:

Battery pack: http://amzn.to/2twY7Rj
AA Batteries: http://amzn.to/2tEeBFY
Spade terminals: http://amzn.to/2u7aaGt
Crimping tool: http://amzn.to/2uZhQqL
Wire stripper: http://amzn.to/2t2uPGX

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Video Transcript:

Hi, this is Ryan with Parts Dr and today I am going to show you how to test the water inlet valve on your dishwasher to see if it is good or bad.   Other videos online show to test the valve by measuring the resistance of the solenoids on the valve.  This test is not very conclusive and doesn’t actually tell you if the valve is working properly.  The testing process I am going to show you is the only conclusive way to determine if the water valve is working properly.
Water valves can fail in a variety of ways.  They can start to leak which can cause water to fill up inside the dishwasher when it is not in use.  They can also cause the dishwasher to not fill with enough water or not fill with water at all.

The first thing you will need to do is unplug or turn off the power to the dishwasher.  Next you will need to gain access to the water valve and look for a sticker or stamping in the metal on the side of the valve.  What we will first need to know is if the water valve is powered by AC or DC voltage and what the voltage rating is.  You should should see a sticker or stamping in the metal with information like this on the side of the valve.  To test the valve we are going to need to apply power to the valve to manually actuate the valve to see if it is working properly.

If your dishwasher has a AC voltage water valve, it is most likely powered by 110-120v AC power which is the standard power that comes from the power outlet in your house.  We are going to first need to make a test cord to apply power to the water valve.  To make a test cord you are going to need a power cord, two crimp on insulated terminals, and a crimping tool.  I will include links to the items we used to make the test cord in the description below.

If the wires are your test cord are not already exposed you will need to strip the insulation from them so they look like this.  On the power cord we are using here, the green is the ground wire and the white and black are the two power wires.  If the power cord you are using is not color coded, you will need to test each wire with a multimeter for continuity to see which wire is ground, hot, and neutral.  The green is the ground wire, the white is the neutral, and the black is the hot wire.  We will not be using the ground wire on the test cord, so we are going to cut that off.  Now we are going to crimp on an insulated 1/4” female spade terminal onto each of the white and black wires.  And now the test cord is done and ready to use.

If your dishwasher has a DC voltage water valve, it is most likely power by 12-14V DC power.  We are going to use a 12V battery pack that uses 8 AA batteries for our power supply.  This battery pack works nicely because it has wires coming out of it that we can crimp out spade terminals to and it also has an on/off switch that we can use to switch the power on and off.  You can also use any 12V DC battery that you can attach wires to.  To get the battery pack ready we are just going to need to crimp on a female spade terminal onto each of the two wires.  I will include links to the items we used for our battery back in the description below.

Next we need to inspect the valve to see what style wire terminals it has.  There are two common styles of terminals we see on most water inlet valves.  Most either have two 1/4” male spade terminals, or two smaller pins that stick out of the valve.  If your valve has the 1/4” spade terminals, we will be able to directly connect our test cord or battery pack directly to the valve.

If the valve has two pins, we will need to cut the wiring harness a few inches away from the valve.  Next we will strip all four wires using a wire stripper.  On one side of the harness we will crimp on two male spade terminals.  And on the other side of the harness we will crimp on two female spade terminals.  This will allow us to connect our power source to the water valve and reconnect the harness back together when we are done.

To test the valve you will need to make sure the water is turned on to the dishwasher and the water supply to the dishwasher is flowing at a good rate.  Let the valve sit for little while and make sure no water leaks from the outlet of the valve.  If the water valve leaks when there is no power supplied to the valve then it is bad and should be replaced.

Next connect the battery pack or test cord to the water valve.  It does not matter which wire goes to which terminal.  Now turn on your power supply or plug in your test cord.  If the water valve is good, the water should flow out of the valve at a steady rate.  If no water comes out of the valve or the water flow seems restricted or slow then you should replace the valve.  The water flow rate should be about that same as the water supply line to the dishwasher.  You can also check your dishwashers owners manual or installation instructions for the manufactures recommended water supply specifications for the psi and flow rate.  Do not apply power to the water valve for more than 1 minute at a time before letting it cool down for a few minutes as it can damage the valve.

If the flow rate on your water valve is slow, it can be caused by sediment that has built up on the screen of the valve or inside the valve.  On most water inlet valves the screen is not removable.  Do not try to disassemble the water valve to try to clean it.  We often see people try to do this and it will almost always result in leaking afterwards which can flood and damage your house.  For the cost of replacing the water inlet valve it is not worth damaging your house.

If you find that you have a bad water inlet valve and you need to purchase a new one, you can purchase one from our online store by clicking the link in the description below.  Please be careful when shopping water inlet valves as many stores sell lower quality aftermarket water valves.  You can be assured when you purchase from Parts Dr that you will receive a new OEM water valve.

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Kenmore is a popular appliance brand sold by Sears.  Sears does not manufacture any of the appliances themselves, instead they source that out and have other manufacturers make their appliances for them.  You can easily decode the model number of the appliance to tell you who made your Kenmore appliance.

The first three digits in a Kenmore model can will tell you who manufactured the appliance for Sears.  For example model number 110.45862400, the first three digits are 110 so that would tell you that Whirlpool manufactured the appliance.  Some of the more common appliance manufacturers Sears uses is Whirlpool, Frigidaire, LG, and GE. If you are looking for parts for your Kenmore appliance your can search for the model number in the search box at the top of the page.

Most dishwashers use a water inlet valve with a electronic solenoid to allow the dishwasher to fill up with water.  The dishwasher will use either a Timer or Control board to tell the dishwasher when to fill up with water and for how long to fill up with water.  Most dishwashers do not measure how much water is filling up into the dishwasher, instead they fill up with water for a certain amount of time.  60-120 seconds is a common amount of time for a dishwasher to fill up with water, but it will vary depending on the make and model of the dishwasher.

it might only fill up with 50% or 75% of the water it was supposed to

On the inlet side of the water valve there is a screen.  The purpose of this screen is to keep
sediment out of the insides of the valve.  If any small objects get into the valve it can cause it not to work or to leak and flood your house/floor.  Over time the inlet screen on the valve will get hard water deposits and other debri stuck in the screen which clogs up water valve and causes it not to flow as well.  So now when the dishwasher calls to fill up with water for XX seconds, it might only fill up with 50% or 75% of the water it was supposed to.  Symptoms of a clogged water valve can be poor washing, surging sound from the pump, and soap not washing out of the dispenser.

When this happens I always recommend replacing the water valve.  I have seen many people try to “clean” out the screens, and by doing this the valve developed a leak and cause thousands of dollars in damage to their house.  Most water valves are pretty inexpensive ($15-$75), so I recommend to just replace the valve if you see that the screen is clogged up.

To check to see if your valve has a clogged screen, pull it off the dishwasher and look inside the inlet side of the valve.

Here is an example of a clogged screen on a water valve:

Here is a good clean screen on a water valve:

In order to find the age of a Whirlpool built appliance you will need the serial number from the appliance.  Since Whirlpool manufactures appliances under many different names, this may work with some of these brand names also:

Whirlpool, Kenmore (Sears), Maytag (Newer models), Kitchen Aid, Estate, Inglis, Roper, Amana, Jenn Air, Crosley and more.

Please do not contact our company for assistance trying to determine the age of your appliance as we will be unable to help.  If the information on this page does not answer your question please contact the manufacture directly for futher assistance.

Serial Number Example:

CR3949348

1st Digit: Where the appliance was manufactured. C = Clyde, OH.

2nd Digit: Year Manufactured.  R = 2004

3rd & 4th Digit: Week the appliance was manufactured.  39 = 39th week of the year.

5th-9th Digit: Manufacture order that week

See the charts below for the year codes:

Whirlpool Model Number Codes
A letter in the model number indicates the year the model was introduced. Please note that the year the model was introduced to NOT indicate the production date. For models 1981 and older you will reference the 2nd character in the model number, and on models produced after 1981 you will reference the 8th character in the model number. Please reference the charts below for the year codes:

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