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Blower issue

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Old Aug 4, 2019 | 08:11 PM
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Blower issue

New here and have my first f250 super duty that has a few issues. Previous owner couldn’t get the blower to work. He put and brand new blower and resistor in. I found the relay in the box under the hood blown and corroded. Put in a new relay and now the blower works but never turns off. Control panels works and speeds work but never completely off. Any help is appreciated.
 
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Old Aug 4, 2019 | 08:22 PM
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Turn the MODE switch to OFF. That's the only time the blower motor is completely shut down.
 
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Old Aug 4, 2019 | 08:25 PM
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Key is off and control panel is in off position and it still spins like it’s on speed one. Only way to turn it off is put the fuse or relay or unplug at the blower under the hood.
 
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Old Aug 4, 2019 | 10:16 PM
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Did you replace the relay kind for kind?
 
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Old Aug 5, 2019 | 04:42 AM
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Kind for kind? Got a typical relay from local AutoZone
 
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Old Aug 5, 2019 | 05:35 AM
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Fully identify what you are working on. The designations of "F250" covers more than 20 years of production.
 
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Old Aug 5, 2019 | 05:39 AM
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2006 F250 super duty xlt. Standard cab 8ft bed. 5.4 3v.
 
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Old Aug 5, 2019 | 09:16 AM
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Manual or electronic automatic climate control?
 
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Old Aug 5, 2019 | 09:18 AM
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Manual controls
 
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Old Aug 5, 2019 | 12:44 PM
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I learned years ago not to use anyone but OEM electronics in my vehicles. Changed a fuel pump relay in my old F-350, 2 days later I had gone to help a friend do some work to come back out and find gas dripping out of the intake, pumped a half a tank of gas into the crankcase. Had to replace the relay and the pressure regulator.
 
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Old Aug 5, 2019 | 08:50 PM
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I would start with a new relay preferably OEM.
 
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