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  1. #1
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    how do i fix code 74 on a TS 300 thermo king unit



    how do i fix code 74 on a TS300 thermo king unit



  2. #2
    Join Date
    Dec 2007
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    Re: how do i fix code 74 on a TS 300 thermo king unit

    its done this for a reason, sounds like the eprom chip on the micro. Also check the sensor grades match what is in stored in the micro
    You can re enter all the values and clear the code via guarded access.
    Go to DDR 45 (last screen in selection) press hold TK button, go to DDR 45 press hold TK button again.
    Code 74 will be there press = to clear

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