Replies

1. 
   grpphoto | Jun 23, 2007 06:48am | #1

   I have read that some motors trip GFCIs for no reason.

   George Patterson
2. 
   cabanillas3 | Jun 23, 2007 09:16am | #2

   I run my chop saw and table saw off an outside GFI outlet with no problems other than the occasional trip at plug in. I have never had it trip while I was running the saws.

   jose
   --
   "Though I don't think" added Deep Thought "that you're going to like it."
1. 
   BobChapman | Jun 23, 2007 02:41pm | #3

   Thanks for your thoughts

   Bob

3. 
   DanH | Jun 23, 2007 03:10pm | #4

   Some electric motors tend to trip GFCIs. Most likely with brush-type motors.

   So convenient a thing it is to be a reasonable Creature, since it enables one to find or make a Reason for everything one has a mind to do. --Benjamin Franklin
4. 
   MrBill | Jun 23, 2007 03:29pm | #5

   Bob,

    I rented a manlift on Memorial day weekend to finish my facia / soffit replacement project. I had to do a lot of sheathing trimming with my circular saw and had no problems with it tripping the GFI. My detached garage has GFI breakers  on everything and I dont have any problems using power tools.

   Hope this helps,

   Bill Koustenis

   Advanced Automotive Machine

   Waldorf Md

5. 
   BossHog | Jun 23, 2007 03:38pm | #6

   I wonder if the chainsaw has a short, or soemthing like that. When it touches the tree it would definitely be grounded, so that would trip a GFCI.

   When you say the "GFCI quit", do you mean it tripped? Or did it burn out completely?

   When the Buddha was asked to explain why he did not respond to a verbal attack, he said, "If someone declined to accept a present, it would belong to the one who offered it. In the same way, I decline to accept the abuse."
6. 
   [email protected] | Jun 23, 2007 05:56pm | #7

   When was the last time you checked the brushes.  GFCIs function by sensing current imbalance between the legs on the circuit.  It the if the brushes are bad there may be enough arcing to trip it.