2007 heat only works when it wants to 1 day it works next day it wont whats the problem

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Joshua Lieg, Aug 18, 2018.

  1. Joshua Lieg

    Joshua Lieg New Member

    Joined:
    Aug 18, 2018
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    Location:
    Wisconsin
    Vehicle:
    2007 Prius
    Model:
    N/A
    Im trying to help a friend fix this problem before it gets worse what do i do... 1 day it will blow nice warm heat but the next day the heat wont work at all
     
    #1 Joshua Lieg, Aug 18, 2018
  2. hchu1

    hchu1 Active Member

    Joined:
    Sep 28, 2006
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    Location:
    Houston, Tx.
    Vehicle:
    2014 Prius v wagon
    Model:
    Two
    I am assuming it is still blowing air, just no heat. Does he have a check engine light? If yes, find out what dtc, likely it's the 3-way valve.

    This will give you an idea of the valve, if this is your issue.

     
    #2 hchu1, Aug 19, 2018
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