DescriptionThis video provides step-by-step repair instructions for replacing the blower assembly on a Whirlpool microwave oven/hood combo (Model #WMH73521CS6). The most common reason for replacing this part is if the microwave is noisy.
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 Blower Assembly Replacement
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Because of the high voltage and high current used by microwave ovens, be aware that repairing this appliance poses a substantial risk for injury or death if precautions are not taken.
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You should always unplug the microwave before you attempt any disassembly.
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To replace the blower assembly, you will need to uninstall the appliance.
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Before you do this, remove the glass turntable and support.
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Have an assistant support the microwave while you remove the mounting bolts from the upper cabinet.
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Carefully tilt the microwave down and pull the power cord through the hole in the cabinet.
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Now, lift the microwave off the mounting plate.
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Set the appliance down on a sturdy surface covered by a towel or blanket.
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Unthread the screws to release the blower cover or air damper.
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Now unthread the mounting screws securing the blower assembly.
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Note the orienation of the blower assembly?then lift the assembly out and disconnect the wire connecter.
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Install the new blower assembly by first connecting wire connecter, then properly position the assembly and thread the two mounting screws.
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Reposition the blower cover or air damper and secure it with the screws.
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Now carefully reposition the microwave on the mounting plate by hooking the back edge of the appliance on the tabs.
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Insert the power cord through the hole in the upper cabinet.
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Lift the microwave up and secure the mounting bolts.
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Plug the power cord back in.
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Replace the turntable and support and your microwave oven should be ready for use.