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    What are some steps to troubleshoot fault code OHF on an ATV61 and ATV71 drive (Overheating faults)?

    Issue:
    What are some steps to troubleshoot fault code OHF on an ATV61 and ATV71 drive (Overheating faults)?

    Product Line:
    Altivar ATV61 and ATV71 drives

    Environment:
    All

    Cause:
    Drives thermal temp has exceeded 118%

    Resolution:  
    Check to see if the cooling fans are running.  Check for blockage on the top of the drive to see if cooling fans are being restricted.
    Menu 1.2 monitoring, check the drives thermal state as the drive starts to warm up, is the signal jumping around?  Which could tell us the thermal sensor is inoperative.
    The drives thermal should be 100% and below in normal running conditions.
    Contact your drives product support group for more assistance if needed.

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