Whirlpool Dryer Main Board Replacement

Introduction

Use this guide to replace the main board a.k.a. Cycle Control Unit (CCU) on your Whirlpool dryer.

The main board is the "brain" of the dryer. When it fails, the dryer will operate erratically or not operate at all.

This guide will work for most Whirlpool dryers. This guide is written with a model WED87HED dryer. If you have a different model, you may encounter some minor disassembly differences, but the overall repair process will be the same.

What you need

Step 1 Safety Precautions

Whirlpool Dryer Main Board Replacement, Safety Precautions: step 1, image 1 of 1

Before you begin your repair, unplug your dryer.
Your power cord may have four prongs rather than three. The additional prong is a ground connection.

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Step 2 Unfasten the top panel

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Whirlpool Dryer Main Board Replacement, Unfasten the top panel: step 2, image 2 of 3

Whirlpool Dryer Main Board Replacement, Unfasten the top panel: step 2, image 3 of 3

Tool used on this step:

FixMat

$36.95

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Throughout this guide, keep track of each screw and reinstall it exactly where it came from.
Use a nut driver to remove the screws securing the top panel to the rear panel bracket.

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Step 3 Remove the top panel

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Whirlpool Dryer Main Board Replacement, Remove the top panel: step 3, image 2 of 2

Grasp the top and slide it 1/2 to 1 inch toward the rear of the machine.

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Step 4

Lift the top panel upward to separate it from the chassis.
Remove the top panel from the machine.

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Step 5 Disconnect the Main Board

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Whirlpool Dryer Main Board Replacement, Disconnect the Main Board: step 5, image 2 of 2

Disconnect all the wires from the main board.

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Step 6

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Continue disconnecting the main board.

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Step 7

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Finish disconnecting the wires from the main board.

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Step 8 Unfasten the main board cover

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Whirlpool Dryer Main Board Replacement, Unfasten the main board cover: step 8, image 2 of 3

Whirlpool Dryer Main Board Replacement, Unfasten the main board cover: step 8, image 3 of 3

Using a flat head screwdriver or a spudger, release the cover clips.

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Step 9 Remove the main board cover

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Whirlpool Dryer Main Board Replacement, Remove the main board cover: step 9, image 3 of 3

Lift the cover to release the tabs on the opposite side of the main board housing.
Remove the cover.

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Step 10 Release the main board

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Whirlpool Dryer Main Board Replacement, Release the main board: step 10, image 3 of 3

Tool used on this step:

Anti-Static Wrist Strap

$7.95

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There are six retaining clips securing the main board. Start at one end and work towards the other.
When you're handling the main board, wear an anti-static strap if possible, or regularly touch the exposed metal parts of the dryer to prevent electrostatic damage to the board.
Lift the board with one hand and use the other to release each clip with a spudger.
As you go, keep a gentle upward pull on the board so that the released clips don't snap back into place as you work.
Alternate sides of the board when releasing the clips.