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Ac only works when the car is not moving and the gas engine is not running

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by Cristopher Jacob Standish, May 3, 2019.

  1. Cristopher Jacob Standish

    Cristopher Jacob Standish New Member

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    2013 Prius c
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    Two
    My ac works when I'm sitting still until the gas engine kicks in then it pumps hot heat has anyone had this problem

    Posted via the PriusChat mobile app.
     
    #1 Cristopher Jacob Standish, May 3, 2019
  2. Cristopher Jacob Standish

    Cristopher Jacob Standish New Member

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    Two
    Hey I'm having a similar issue my ac only works when the car is siting still and the gas engine is off when I put it in drive and hit the gas it goes right to blowing really hot air mine is a 2013 toyota prius c

    Posted via the PriusChat mobile app.
     
    #2 Cristopher Jacob Standish, May 3, 2019
  3. Cristopher Jacob Standish

    Cristopher Jacob Standish New Member

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    #3 Cristopher Jacob Standish, May 3, 2019
  4. Elektroingenieur

    Elektroingenieur Senior Member

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    Did you use a Toyota Techstream diagnostic system or follow the procedure in the Repair Manual (more info) to check for codes using the air conditioning control panel? If you used a generic OBD II scan tool designed for engine and emissions diagnosis, it probably wouldn’t have been able to communicate with the air conditioning amplifier assembly to retrieve stored codes.

    In any case, @Leadfoot J. McCoalroller's suggestion above about the air mix damper (the No. 1 air conditioning radiator damper servo sub-assembly, in Toyota’s terms) is a good one. If this damper is broken or in the wrong position, the airflow through the air conditioner will go through the heater radiator unit sub-assembly, which has hot coolant when the engine is running.

    Even if the code isn’t stored, I’d suggest the Repair Manual troubleshooting procedure for B1441/41, Air Mix Damper Control Servo Motor Circuit (Passenger Side). If it is the servo sub-assembly, though, replacement is unlikely to be a do-it-yourself job.
     
    #4 Elektroingenieur, May 4, 2019
    ztanos likes this.
  5. Cristopher Jacob Standish

    Cristopher Jacob Standish New Member

    Joined:
    May 3, 2019
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    Location:
    New york
    Vehicle:
    2013 Prius c
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    Two
    Turned out to be the blend door got the whole hvac system replaced thank God for a warranty

    Posted via the PriusChat mobile app.
     
    #5 Cristopher Jacob Standish, May 17, 2019
    ztanos likes this.
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