1. If you would like to get rid of these banners and the ads within the posts, all you have to do is sign up and they will go away!
  2. Hey Guest, are you here looking for the PDF Plans? They are located in the store in the tab above, but you must be signed in to access that part of the site. It only takes a second to sign up!
Hey Guest, I see you are not signed up on our forum yet. Did you know Registration is FREE and is only a couple clicks away? You can even sign in from Facebook, Twitter or Google+ for your convenience! So what are you waiting for, CLICK HERE to join in on the conversation!

ESC esc heating up

Discussion in 'Electronics' started by matthias, Sep 10, 2017.

  1. matthias

    matthias New Member

    Blog Posts:
    0
    Joined:
    Jun 15, 2017
    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Male
    Location:
    hillsdale ny
    hi i am doing my first airplane build and i have a 30a esc when i plug my battery in it starts smoking and heats up. Anyone know whats going on?
     


  2. Tony

    Tony Administrator Staff Member

    Blog Posts:
    10
    Joined:
    Feb 21, 2011
    Messages:
    31,863
    Likes Received:
    1,205
    Trophy Points:
    113
    If it is already smoking, then the ESC is more than likely toast. Some things I would double check is polarity of not only the main power wires, but also the polarity of the small wires that go to the Rx. If those are good, then I'm guessing you just had a FET go bad which caused the others to short out as well. If you can, take the wrap off the ESC and post up a picture.
     
  3. matthias

    matthias New Member

    Blog Posts:
    0
    Joined:
    Jun 15, 2017
    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Male
    Location:
    hillsdale ny
  4. Smoggie

    Smoggie I Support Rc-Help! Rc-Help Supporter

    Blog Posts:
    0
    Joined:
    Dec 14, 2015
    Messages:
    2,106
    Likes Received:
    76
    Trophy Points:
    58
    Location:
    Aberdeen, UK
    +1 on Tony's advice. If there was smoke the ESC is toast.

    There are several possible causes, it could just be a random fault though reverse polarity or connecting batteries of too high voltage are also possibilities.

    PS...... just noticed the photos, there are no connectors soldered on and no insulation of the exposed wire ends. This makes reverse polarity and/or a short more likely.
     
  5. Tony

    Tony Administrator Staff Member

    Blog Posts:
    10
    Joined:
    Feb 21, 2011
    Messages:
    31,863
    Likes Received:
    1,205
    Trophy Points:
    113
    It will more than likely be under that heat sink. Not really seeing anything too bad on the back side though.
     
  6. matthias

    matthias New Member

    Blog Posts:
    0
    Joined:
    Jun 15, 2017
    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Male
    Location:
    hillsdale ny
    OK hear is the stuff under the heat sink

    DSC00001.JPG
     
  7. Smoggie

    Smoggie I Support Rc-Help! Rc-Help Supporter

    Blog Posts:
    0
    Joined:
    Dec 14, 2015
    Messages:
    2,106
    Likes Received:
    76
    Trophy Points:
    58
    Location:
    Aberdeen, UK
    PS.. the linear regulator IC (the black chip with three pins on one side and one on the other near where the wires that go to the Rx are soldered) looks like it may be burned, it would need a close up pic to be sure.

    If that's the case then the most likely cause would be a short between the red and black wires on the Rx cable, this could be caused by a faulty or stalled servo or a wiring fault.
     
  8. Tony

    Tony Administrator Staff Member

    Blog Posts:
    10
    Joined:
    Feb 21, 2011
    Messages:
    31,863
    Likes Received:
    1,205
    Trophy Points:
    113
    I noticed that too steve, but it's too early for me to have thought of what the name of that thing is lol. Also, the last pic, it kind of looks like the lower left chip is "wet" which is a sign of it going bad. The top left also looks like it has a dark leg as well.
     
  9. matthias

    matthias New Member

    Blog Posts:
    0
    Joined:
    Jun 15, 2017
    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Male
    Location:
    hillsdale ny
    i have a 3 cell 11.1v 1300mah battery and a 2300kv motor anyone know what esc to buy that would work for both?
     
  10. rdsok

    rdsok Well-Known Member

    Blog Posts:
    0
    Joined:
    Sep 11, 2011
    Messages:
    1,146
    Likes Received:
    45
    Trophy Points:
    48
    Location:
    Norman, Ok USA
    Home Page:
    The kv that a motor is not helpful ( except when configuring props to use etc )... on this side of things, it's more about the voltage range the motor can use and at what amperage it pulls...

    Then on the battery... you'll need to know it's "C" rating so you know how many amps it can supply...

    The kv rating is just how fast the motor turns at a given voltage... it doesn't tell us voltage or amperage ratings.
     
  11. matthias

    matthias New Member

    Blog Posts:
    0
    Joined:
    Jun 15, 2017
    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Male
    Location:
    hillsdale ny
  12. Tony

    Tony Administrator Staff Member

    Blog Posts:
    10
    Joined:
    Feb 21, 2011
    Messages:
    31,863
    Likes Received:
    1,205
    Trophy Points:
    113
    I see no wattage or amp rating on those motors. I do see it says 2-3s and has "been tested with 4s" but they never state the outcome lmao. I can "test" with a 12s, but what did it do.... Chinese sellers at their best.

    With that said though, most 2204 motors are safe with 12a ESC's unless you are running 2s, then I would go 15-18 amp.
     

Share This Page