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Join Date:

12-17-2010

Last Activity:

12-30-2010 8:40 PM

  • Sussex
  • NJ

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  • Posted in thread: switching transformer hum normal? on 12-17-2010 at 10:30 PM
    Thanks. since I have two db levels of hum I would say one is abnormal.I am assuming you are
    saying these can go a long time with a loud hum and still work.Still it is annoying to hear it
    through the f...

  • Posted in thread: Hi on 12-17-2010 at 09:25 PM
    My name is Mark from NJ and I am a DYIer. I just posted a question in the HVAC section had hope
    to find help from those who know.

  • Posted in thread: switching transformer hum normal? on 12-17-2010 at 09:23 PM
    I have an older furnance with a Honeywell RA 89a 1074 switching transformer that has a loud hum
    at times at other times a low humWhen I hear the loud hum the system still works and if I turn
    off the p...

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