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IMPORTANT: To avoid damage to dishwasher, do not operate your 
dishwasher without the filters properly installed. Be sure the lower filter 
is securely in place and the upper filter assembly is locked into place. 
If the upper filter assembly turns freely, it is not locked into place.

First try the solutions suggested here. If you need further assistance or more recommendations that may help you avoid a service call, refer to 
the warranty page in this manual and s

can the code there with your mobile device, or visit www.whirlpool.com/product_help.  In Canada, visit 

http://www.whirlpool.ca.

Contact us by mail with any questions or concerns at the address below:

In the U.S.A.:

Whirlpool Brand Home Appliances 
Customer eXperience Center
553 Benson Road
Benton Harbor, MI 49022-2692

In Canada:

Whirlpool Brand Home Appliances 
Customer eXperience Centre
200 – 6750 Century Ave.
Mississauga ON  L5N 0B7

Please include a daytime phone number in your correspondence.      

Filter Reinstallation Instructions

1. Noting the previous illustrations, place the lower filter under the 

locating tabs in the bottom of the dishwasher so the round 
opening for the upper filter assembly lines up with the round 
opening in the bottom of the tub.

2. Insert the upper filter assembly into the circular opening in the 

lower filter.

3. Slowly rotate the filter clockwise until it drops into place. 

Continue to rotate until the filter is locked into place. If the filter 
is not fully seated (still turns freely), continue to turn the filter 
clockwise until it drops and locks into place. 

NOTE: The upper filter assembly arrow does not have to align 
with the arrow in the lower filter as long as the filter is locked.

TROUBLESHOOTING

If you experience Recommended Solutions

Dishwasher does 
not run or stops 
during a cycle

It is normal for certain cycles to repeatedly pause for several seconds during the main wash. Is the door closed tightly 
and latched?

Is the right cycle selected? 

Is there power to the dishwasher? Has a household fuse blown, or has a circuit breaker tripped? Replace the fuse or reset 
the circuit breaker. If the problem continues, call an electrician.

Has the motor stopped due to an overload? The motor automatically resets itself within a few minutes. If it does not restart, 
call for service.

Is the water shutoff valve (if installed) turned on?

The Clean light 
is flashing

Check the following:

Is the overfill protection float able to move up and down freely? Press down to release.

Be sure the water supply is turned on to the dishwasher. This is very important following the new installation of your 
dishwasher.

Check for suds in the dishwasher. If foam or suds are detected by the dishwasher sensing system, the dishwasher 
may not operate properly or may not fill with water.

Suds can come from:

Using the incorrect type of detergent, such as laundry detergent, hand soap, or dish detergent for hand 
washing dishes. 

Using an excessive amount of dishwasher detergent.

Dishes do not 
dry completely

NOTE: Plastic and items with nonstick surfaces are difficult to dry because they have a porous surface which tends 
to collect water droplets. Towel drying may be necessary.

For improved drying results, select the Heat Dry option.

Proper loading of items can affect drying.

Glasses and cups with concave bottoms hold water. This water may spill onto other items when unloading. 

Unload the bottom rack first.

For improved results, place these items on the more slanted side of the rack.

Noise

NOTES:

Surging sounds can occur periodically throughout the cycle while the dishwasher is draining.

Normal water valve hissing may be heard periodically.

A normal snap sound may be heard when the detergent dispenser opens during the cycle or when the door is opened 
at the end of the cycle.

Improper installation will affect noise levels. 

Be sure the filters are properly installed. 

A thumping sound may be heard if items extend beyond the racks and interfere with the wash arms. Readjust the dishware 
and resume the cycle.

Summary of Contents for WDF121PAFW0

Page 1: ... instructions before using the dishwasher Use the dishwasher only for its intended function Use only detergents or rinse agents recommended for use in a dishwasher and keep them out of the reach of children When loading items to be washed 1 Locate sharp items so that they are not likely to damage the door seal and 2 Load sharp knives with the handles up to reduce the risk of cut type injuries Do n...

Page 2: ...hwasher filtration This filtration system minimizes sound and optimizes water and energy conservation while providing superior cleaning The filter system consists of two parts an upper filter assembly and lower filter IMPORTANT To avoid damage to dishwasher do not operate your dishwasher without filters properly installed Be sure lower filter is securely in place and upper filter assembly is locke...

Page 3: ...n better than powder liquid or gel detergents at reducing filming on dishes Using tablets and packs over time will start to reduce or eliminate white film Also by using a rinse aid you can minimize repeat buildup of white film Powder and Gels The amount of detergent to use depends on How much soil remains on the items Heavily soiled loads require more detergent The hardness of the water If you use...

Page 4: ...ast results 1 Hr Wash will clean dishes using slightly more water and energy Selecting the Heat Dry option will increase total cycle time but dry dishes faster than air drying alone All soil levels 59 62 5 80 21 94 CYCLE GUIDE OPTIONS CAN BE SELECTED WITH WHAT IT DOES ADDED TIME TO CYCLE ADDED WATER GALLONS LITERS TYPICAL MAX Raises main wash temperature to improve cleaning for loads containing to...

Page 5: ...me Damage from freezing is not covered by the warranty When storing your dishwasher in the winter avoid water damage by having your dishwasher winterized by authorized service personnel It is very easy to remove and maintain the filters The chart below shows the recommended cleaning frequency Manufacturer s recommendation This practice will conserve the water and energy that you would have used to...

Page 6: ...closed tightly and latched Is the right cycle selected Is there power to the dishwasher Has a household fuse blown or has a circuit breaker tripped Replace the fuse or reset the circuit breaker If the problem continues call an electrician Has the motor stopped due to an overload The motor automatically resets itself within a few minutes If it does not restart call for service Is the water shutoff ...

Page 7: ...lean it if needed See the Dishwasher Care section Select the proper cycle for the type of soils The Heavy Wash cycle can be used for tougher loads Be sure the incoming water temperature is at least 120 F 49 C Use the proper amount of fresh detergent More detergent is needed for heavier soiled loads and hard water conditions Scrape food from dishes prior to loading do not prerinse If foam or suds a...

Page 8: ...age caused by the use of non genuine Whirlpool parts or accessories 6 Conversion of products from natural gas or L P gas 7 Damage from accident misuse abuse fire floods acts of God or use with products not approved by Whirlpool 8 Repairs to parts or systems to correct product damage or defects caused by unauthorized service alteration or modification of the appliance 9 Cosmetic damage including sc...

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