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No blower high speed

Discussion in 'Ask An Owner Operator' started by Perchie15, Sep 5, 2021.

  1. Sep 5, 2021 #1
    Perchie15

    Perchie15 Light Load Member

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    Aug 16, 2021
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    I have a 2013 westernstar w4900. I tried another resister and another blower motor and relay also and still no high speed so I guess all that’s left is the switch should be the culprit right? Idk what else to look at!
     
    Perchie15, Sep 5, 2021
    Perchie15, Sep 5, 2021
    #1
    feldsforever Thanks this.
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  3. Sep 5, 2021 #2
    ProfessionalNoticer

    ProfessionalNoticer Road Train Member

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    Usually if the resistor is bad you'll lose all speeds EXCEPT high. Sounds like the switch is all that's left. Unless there's something electronic in the circuit controlling it.
     
    ProfessionalNoticer, Sep 5, 2021
    ProfessionalNoticer, Sep 5, 2021
    #2
    feldsforever Thanks this.
  4. Sep 5, 2021 #3
    Perchie15

    Perchie15 Light Load Member

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    Aug 16, 2021
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    I got it fixed lol switch it is!!! I was trying to Delete this post not sure if we can? I found it after I posted this. Thanks
     
    Perchie15, Sep 5, 2021
    Perchie15, Sep 5, 2021
    #3
    feldsforever, baha and ProfessionalNoticer Thank this.
  5. Sep 5, 2021 #4
    baha

    baha Road Train Member

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    Its better to leave it up for the next person, just so they can see what the fix was.
     
    baha, Sep 5, 2021
    baha, Sep 5, 2021
    #4
    ProfessionalNoticer Thanks this.
  7. Sep 5, 2021 #5
    Ridgeline

    Ridgeline Road Train Member

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    A simple troubleshooting tip.

    If it only runs on high, it is the resistor.

    If it only runs on anything but high, it is the switch.

    If it doesn't run at all, most likely it is the motor but confirm by a volt meter at the motor leads.
     
    Ridgeline, Sep 5, 2021
    Ridgeline, Sep 5, 2021
    #5
    feldsforever and Vampire Thank this.
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