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Question about AC blower

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Oct 5, 2021 | 01:34 PM

#1

Motohead911

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Laughing Gas

Joined: Aug 2018

Posts: 934

Likes: 248

From: CA

Question about AC blower

Hi, I have a 2005 F350 and I have a question about the AC blower motor. Is there a noticeable difference in air output from the vents between speeds 1, 2 ,and 3? Full speed is much more aire. The first 3 blow air, but doesn't really seem different from each other.

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Oct 5, 2021 | 03:55 PM

#2

Djosbun

Fleet Mechanic

Joined: Oct 2017

Posts: 1,704

Likes: 164

From: Southwest Ohio

My 2005 has all the air speeds quite distinguishable between them. Each fan speed toggle is easily felt.

-- Dave

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Oct 5, 2021 | 10:10 PM

#3

marksman76

Laughing Gas

Joined: Oct 2018

Posts: 1,010

Likes: 86

From: San Diego

The fan switch is full of resistors, the less activated resistors the faster fan blows.

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