Whirlpool WMH73521CS Installation Instruction

NOTE: If microwave oven does not need to be adjusted, skip 
steps 7-9.
7. If adjustment is required, rotate microwave oven downward. 

Using 2 or more people, lift microwave oven off of mounting 
plate, and set aside on a covered surface.

8. Loosen mounting plate screws. Adjust mounting plate and 

retighten screws.

9. Repeat steps 3-6.
10. With the microwave oven centered, and with at least one 

person holding it in place, insert bolts through upper cabinet 
into microwave oven. Tighten bolts until there is no gap 
between upper cabinet and microwave oven.

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Some upper cabinets may require bolts longer or shorter than 
3" (7.6 cm). Longer or shorter bolts are available at most 
hardware stores.

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Overtightening bolts may warp the top of the microwave oven. 
To avoid warping, wood filler blocks (installer to provide) 
may be added. The blocks must be the same thickness as 
the space between the upper cabinet bottom and the 
microwave oven.

1. Insert damper assembly through the cabinet cutout so that the 

long tab of the damper assembly slides under the raised tabs 
of the damper plate. Then secure with sheet metal screw.

NOTE: The screw cannot be installed if the damper assembly is 
not positioned as shown.

2. Connect vent to damper assembly.

1. Install filters. Refer to the User Instructions for filter placement.

2. Plug microwave oven into grounded 3 prong outlet.
3. Reconnect power.
4. Check the operation of microwave oven by placing 1 cup 

(250 mL) of water on the turntable, and programming a cook 
time of 1 minute at 100% power. Test vent fan and exhaust by 
operating the vent fan.

5. If the microwave oven does not operate:

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Check that a household fuse has not blown, or that a 
circuit breaker has not tripped. Replace the fuse or reset 
the circuit breaker. If the problem continues, call an 
electrician.

■

Check that the power supply cord is plugged into a 
grounded 3 prong outlet.

■

See the User Instructions for troubleshooting information.

Installation is now complete.
Save Installation Instructions for future use.

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