FORD 2011 F-550 v.1 - Manual (Page 159)

If the engine falls below 350 rpm while the cooled seats are on, the
feature will turn itself off and will need to be reactivated.
Climate controlled seats air filter replacement (if equipped)
The climate controlled seat system includes air filters that must be
replaced periodically. Refer to the scheduled maintenance information
for more information.
• There is a filter located under the
rear of each front seat.
• The filter can be accessed from the second row seat. Move the front
seats all the way forward and up to ease access.
To remove an air filter:
1. Remove key from ignition.
2. Push up on the outside rigid edge
of the filter and rotate toward the
front of the vehicle once tabs are
released.
3. Remove filter.
Seating and Safety Restraints
159
2011 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)