Whirlpool WMH73521CS Installation Instruction

7. Reattach blower motor to back of microwave oven with 

2 screws removed in Step 3.

8. Reattach damper plate. Make sure damper plate tabs are 

inserted into the slots in the top of the microwave oven

. 

9. Secure damper plate with 2 screws removed in Step 1.

1. Repeat Step 1 from “Wall Venting Installation Only.”
2. Repeat Step 2 from “Wall Venting Installation Only.”
3. Repeat Step 3 from “Wall Venting Installation Only.”
4. Repeat Step 4 from “Wall Venting Installation Only.”
5. Rotate blower motor so that exhaust ports face the top of 

microwave oven, and flat sides of blower motor face back of 
microwave oven. Lower blower motor back into microwave 
oven.

IMPORTANT: If blower motor is not positioned with flat sides 
facing the back of the microwave oven (as shown), performance 
will be poor.

6. Reattach blower motor to back of microwave oven with 

2 screws removed in Step 3 of “Wall Venting Installation Only.” 
Securely tighten screws.

NOTE: If blower motor is not correctly oriented, the 2 screws 
removed in Step 3 cannot be reattached to the microwave oven.
7. Using diagonal wire cutting pliers, gently snip out the 

rectangular vent covers on the damper plate removed in 
Step 1, at the perforations. 

8. Reattach damper plate. Make sure damper plate tabs are 

inserted into the slots in the top of the microwave oven.

9. Secure damper plate with 2 screws removed in Step 1 of “Wall 

Venting Installation Only.”

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B

C

D

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 B

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B

C

D