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Monday, October 06, 2008

heat and air does not come on anymore.

I have a 2005 F250 Harley Davidson edition and the heat and air does not come on anymore. It has the auto control system in it. It started out with the air blower not being able to be controlled or shut off then it went to just nothing? Where should I start to look? So far just reset the battery to see if it rests the computer
Assuming you have checked all the fuses. The first place I would look would be the blower motor relay ( located in the battery junction box under the hood, for specific location refer to fuses and relay section in the owners manual). If it is sticking it would cause the issue at hand. the other thing that might be a problem would be the blower motor speed controller but not as likely. Reference: Using a multi-meter

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