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HR20-100 Case Fan Specs?

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by SparkyX, Nov 20, 2010.

  1. SparkyX

    SparkyX Cool Member

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    0
    Jul 15, 2009
    Anybody know the specs of the case fan in a HR20-100? I have a noisy fan and would prefer not to swap the receiver and lose my recordings.

    Thanks,

    - Patrick
     
  2. crendall

    crendall Legend

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    Jun 26, 2006
    I have the same question. The fan in my HR20-100 is getting rather noisy. I tried replacing it with a similar fan but the fan didn't spin. Anyone have a good source for replacement fans for the HR20-100?
     
  3. TomCat

    TomCat Broadcast Engineer

    4,153
    100
    Aug 31, 2002
    It's a garden-variety 4.5" 12VDC fan. You can get them at any electronics parts supplier. Nothing fancy, no 2-speed logic control. just a dumb fan that spins when it sees 12 volts. Allied.com likely has them.
     
  4. crendall

    crendall Legend

    146
    0
    Jun 26, 2006
    I picked up a fan at Best Buy that has then same dimensions and runs on 12 VDC but the fan doesn't spin and the internal temp got up to 127 degrees when I pulled the plug.
     
  5. TomCat

    TomCat Broadcast Engineer

    4,153
    100
    Aug 31, 2002
    Well then I guess there is no fan that will ever work. :rolleyes:

    Either that, or the fan was bad or you didn't hook it up right. I would think you would verify that it spun before closing the case and cooking your DVR.
     
  6. P Smith

    P Smith Mr. FixAnything

    21,323
    127
    Jul 25, 2002
    Mediterranea...
    Or peel off a sicker from the fan and drop little bit oil into.
     
  7. SparkyX

    SparkyX Cool Member

    25
    0
    Jul 15, 2009
    I figured it out--it is a 80mm case fan, but a $10 Dynex fan I purchased from Best Buy wouldn't spin. I checked the power cable from the broken fan and confirmed with a volt meter that the 12V (red) and ground (black) lines needed to be swapped. I used my smallest jeweler's flatblade screwdriver to gently remove the cables out of the plug and swapped them. Works like a champ now.

    On another note, for some reason my HR20-100 wouldn't successfully start up without the internal HD plugged into power and data (I have an external 1TB WD Green drive in an Antec MX-1 case). So much for sparing the HR20 the unnecessary heat.

    - Patrick
     
  8. SparkyX

    SparkyX Cool Member

    25
    0
    Jul 15, 2009
    FWIW the broken fan is a JMC 8025-12LS, part number 8122271-5. Website is jmcproducts.com .

    - Patrick
     
  9. crendall

    crendall Legend

    146
    0
    Jun 26, 2006
    SparkyX, I purchased the same Dynex fan from Best Buy. I also noticed the red and black wires needed to be swapped, and once I did that the fan started working and the internal temp is holding steady at 108 degrees.
     

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