Whirlpool WGD7990X 用户手册

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Cleaning your lint screen before each load.

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Replace plastic or foil vent material with 4" (102 mm)  

diameter heavy, rigid vent material. 

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Use the shortest length of vent possible. 

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Use no more than four 90° elbows in a vent system;  

each bend and curve reduces air flow.

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Remove lint and debris from the exhaust hood.

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Remove lint from the entire length of the vent system  

at least every 2 years. When cleaning is complete, be  

sure to follow the Installation Instructions supplied with 

your dryer for final product check.

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Clear away items from the front the dryer.

Along with heat, dryers require good air flow to  

efficiently dry laundry. Proper venting will reduce  

your drying times and improve your energy savings.  

See Installation Instructions.
The venting system attached to the dryer plays a  

big role in good air flow.
Service calls caused by improper venting are not  

covered by the warranty and will be paid by the customer, 

regardless of who installed the dryer.