DescriptionThis video provides step-by-step repair instructions for replacing the display board on a Whirlpool microwave oven/hood combo (Model #WMH73521CS6). The most common reason for replacing this part is if the display and/or buttons are not working properly.
All of the information for this video is applicable to the following brands:
Whirlpool
Step-By-Step Instructions1
Whirlpool Microwave Oven/Hood Combo - WMH73521CS6
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Microwave Oven Display Board Replacement
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Tools needed: Phillips-head screwdriver, flat-head screwdriver
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Be sure to unplug the power cord or shut off the power supply.
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Use a Phillips-head screwdriver to unthread the three screws securing the top grille.
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Pull the grille down from the top to detach.
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Disconnect the door wire connecter.
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Use a small flat-head screwdriver to pry out the access plug.
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Detach the door assembly mounting pins from the holes in the hinges to remove the assembly? and set it on a sturdy surface.
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Next, pry out the plugs covering the four mounting screws holding the inner and outer door panels together.
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Use a Phillips-head screwdriver to unthread the screws.
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Now use a putty knife to help separate the outer door assembly from the inner panel.
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Remove the window insert.
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Unthread all of the screws securing the display board cover.
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Lift up the cover and detach the wires from the clips on the cover.
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Next, unthread the four mounting screws to release the display board.
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Disconnect the harness connecter.
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Release the ribbon from the connecter.
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Install the new display board by first connecting the ribbon to the connecter.
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Connect the harness connecter.
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Position the display board and thread the mounting screws.
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Secure the wires in the retaining clips on the display board cover.
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Position the cover, then rethread all of the screws.
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Reposition the window insert.
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Realign the inner door panel and snap the two panels together.
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Replace the four mounting screws.
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Press the plugs into place.
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Now align the door assembly on the hinges so the mounting pins insert into the holes in the hinges.
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With the door in place, snap the access plug in.
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Connect the door wire connecter.
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Now align the grille tabs with the slots in the frame and snap the grille into position.
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Rethread the three screws.
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Having a magnetized screwdriver will make it easier to rethread the screw on the right.
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Plug the power cord back in or restore the power supply and the microwave oven should be ready for use.