Whirlpool
Dryer

Model # WGD6400SW1 Official Whirlpool dryer

Here are the diagrams and repair parts for Official Whirlpool WGD6400SW1 dryer, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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Showing 10 of 175 parts  |

Dryer Repair Kit 279948
#NI

8557890 burner assembly, optional parts (not included) diagram

Dryer repair kit

Part #279948

Replaced by #4392065

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Manufacturer substitution
This part replaces 279948. Substitute parts can look different from the original.
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$28.60
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Dryer Thermal Fuse 3392519
#26

Bulkhead parts diagram

Dryer thermal fuse

Part #3392519

Replaced by #WP3392519

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Manufacturer substitution
This part replaces 3392519. Substitute parts can look different from the original.
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Dryer Thermistor 8577274
#9

Bulkhead parts diagram

Dryer thermistor

Part #8577274

Replaced by #WP8577274

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Manufacturer substitution
This part replaces 8577274. Substitute parts can look different from the original.
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Igniter 686590
#4

8557890 burner assembly, optional parts (not included) diagram

Igniter

Part #686590

Replaced by #279311

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Manufacturer substitution
This part replaces 686590. Substitute parts can look different from the original.
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Light Bulb 3406124
#20

Bulkhead parts diagram

Light bulb

Part #3406124

Replaced by #WP22002263

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Manufacturer substitution
This part replaces 3406124. Substitute parts can look different from the original.
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18% OFF MSRP : $22.00
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Dryer Motor Pulley 8578565
#42

Cabinet parts diagram

Dryer motor pulley

Part #8578565

Replaced by #WP8066184

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Manufacturer substitution
This part replaces 8578565. Substitute parts can look different from the original.
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19% OFF MSRP : $47.00
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Dryer Thermal Cut-off Kit 280010
#25

Bulkhead parts diagram

Dryer thermal cut-off kit

Part #280010

Replaced by #W11050897

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Manufacturer substitution
This part replaces 280010. Substitute parts can look different from the original.
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Dryer High-limit Thermostat 3403140
#15

Bulkhead parts diagram

Dryer high-limit thermostat

Part #3403140

Replaced by #W11050897

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Manufacturer substitution
This part replaces 3403140. Substitute parts can look different from the original.
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Dryer Tri-ring Retainer 690997
#39

Bulkhead parts diagram

Dryer tri-ring retainer

Part #690997

Replaced by #WPW10512946

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Manufacturer substitution
This part replaces 690997. Substitute parts can look different from the original.
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Appliance Touch-up Paint, 0.6-oz (white) (replaces 21020, 72017r, 8006, W10813125, Y058028) 72017
#NI

8557890 burner assembly, optional parts (not included) diagram

Appliance touch-up paint, 0.6-oz (white) (replaces 21020, 72017r, 8006, w10813125, y058028)

Part #72017

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Most common symptoms to help you fix your dryers

Choose a symptom to see related dryer repairs.

Main causes: door switch failure, lack of power, broken belt, blown thermal fuse, bad drive motor, control system failur…

Main causes: clogged exhaust system, heating system failure, deposits on moisture sensor, control system failure…

Main causes: damaged door strike, worn door catch…

Main causes: lack of electrical power, bad power cord, wiring failure, bad control board, blown thermal fuse, bad door s…

Main causes: bad timer or electronic control board, door switch failure…

Main causes: bad gas valve coils, broken heating element, tripped safety thermostat or fuse, bad operating thermostat, c…

Main causes: bad drum support roller, damaged idler pulley, broken blower fan blade, worn drum glide bearing, bad drive …

Main causes: clogged exhaust vent, bad motor relay, loose dryer door catch, bad door switch, control system failure, fau…

Most common repair guides to help fix your dryers

These step-by-step repair guides will help you safely fix what’s broken on your dryer.

How to replace a flame sensor in a gas dryer

How to replace a flame sensor in a gas dryer

If your gas dryer won't heat, a broken flame sensor is one possible cause. This guide and video explain how to replace a…

Repair difficulty
Time required
 30 minutes or less
How to replace a thermal fuse in an electric dryer

How to replace a thermal fuse in an electric dryer

When the air in the dryer overheats—usually because the vent is clogged—the thermal fuse blows, stopping the dryer. You …

Repair difficulty
Time required
 15 minutes or less
How to replace a dryer door switch

How to replace a dryer door switch

The dryer won't start if the door switch isn't working correctly. You can install a replacement dryer door switch in les…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dryers

Use the advice and tips in these articles and videos to get the most out of your dryer.

How to use your clothes dryer efficiently

How to use your clothes dryer efficiently

Get expert tips on using your dryer efficiently to save energy.…

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…