Whirlpool W10100920D Specification Guide

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For closet installation, with a door, minimum ventilation 
openings near the top and bottom of the door are required. 
Louvered doors with equivalent ventilation openings are 
acceptable.

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Companion appliance spacing should also be considered.

 

*Recommended spacing.

Certain electronic dryer models have airflow detection 
capabilities. (See specific model product literature for details). If 
the airflow in the dryer is extremely low, an “AF” code will be 
displayed on the control panel. For single dryer venting systems, 
this code means that you may have a blocked or partially blocked 
vent or that your overall vent system length is too long. To resolve 
this issue:

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Check to see if the vent run from the dryer to the wall is 
crushed. Refer to the “Venting Requirements” section of 
the Use and Care Guide for more information.

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Confirm that the vent run from the dryer to the wall is free 
of lint and debris.

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Confirm that the exterior vent exhaust hood is free of lint 
and debris.

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Confirm that your vent system falls within the 
recommended run length and number of elbows 

 

for the type of vent you are using. Refer to the “Plan 

 

Vent System” section of the Use and Care Guide for 
details.

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Select a Timed Dry heated cycle, and restart the dryer.

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If the message persists, have your entire home venting run 
cleaned.

For multi-dryer venting systems, the “AF” code means that your 
vent may be blocked or partially blocked or that the venting 
system is creating back pressure in excess of the maximum 
allowed. In this case, the engineering firm that designed the 
system should be consulted.

Multiple dryer venting systems must be designed specifically for 
each application. 
NOTE: It is recommended that an architectural or HVAC 
engineering firm be consulted for designing the dryer venting 
system.
Connecting a number of dryers to a single vent system is 
common in coin-laundry stores and in many apartment 

 

buildings. Listed here are some requirements for examples 

 

of three different multiple dryer venting systems. 
Option 1 - Horizontal System
The most common is the horizontal system, in which banks of 
dryers are all located in one room and vented through a common 
duct. See the following illustration for an example of a generic 
horizontal system.

*Minimum spacing required between dryers

Option 2 - Vertical System
The vertical system is used in some apartment buildings that have 
a washer and dryer on each floor. Each dryer is exhausted into the 
same central vertical duct. See the following illustration for an 
example of a generic vertical system.