KVT overheating - help

Discussion in 'Heidelberg Printing Presses' started by NimeshSilva, Sep 4, 2015.

  1. NimeshSilva

    NimeshSilva Senior Member

    Joined:
    Jan 2013
    Messages:
    246
    Location:
    Sri Lanka
    Hi all,
    Have a small problem on SM74-2 CPTronic compact.
    The KVT is overheating (temp goes upto 85C) and eventually the machine stops with an error KVT 77FF. The temp goes up after around 20 minutes after production starts and after 10 minutes cool down the machine can be run again.

    I've monitored the current and voltage and they seems normal. (224V 41A @1111rpm)
    What might be the problem?
     
    NimeshSilva, Sep 4, 2015
    #1
  2. turbotom1052

    turbotom1052 Senior Member

    Joined:
    Oct 2008
    Messages:
    1,054
    Location:
    Vermont
    is it being vented properly? filters clogged?
     
    turbotom1052, Sep 4, 2015
    #2
  3. NimeshSilva

    NimeshSilva Senior Member

    Joined:
    Jan 2013
    Messages:
    246
    Location:
    Sri Lanka
    Yes.. the cooling fan was defective. :p
     
    NimeshSilva, Sep 5, 2015
    #3
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