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Forum topic by DonJ posted 01-30-2013 07:19 PM 1326 views 0 times favorited 11 replies Add to Favorites Watch
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250 posts in 3521 days

01-30-2013 07:19 PM

I was just out in the shop…turned on my 3hp Griz dust collection system and I heard a pop, turned around and saw some sparks and smoke coming out of the on/off control panel. Bummer!!

-- Don, San Antonio, TX

11 replies so far

View Gary's profile


9331 posts in 3427 days

#1 posted 01-30-2013 07:20 PM

Bummer for sure. Hope it can be an eazy fix

-- Gary, DeKalb Texas only 4 miles from the mill

View SCOTSMAN's profile


5849 posts in 3579 days

#2 posted 01-30-2013 07:27 PM

Make sure it’s all clean, and there’s no dust in the switchgear there.I suggest you take it apart and make sure a build up of swarf-wood-dust might have shorted it it has been known. Alistair

-- excuse my typing as I have a form of parkinsons disease

View RonInOhio's profile


721 posts in 2858 days

#3 posted 01-30-2013 07:40 PM

And ????

View Dallas's profile


3599 posts in 2481 days

#4 posted 01-30-2013 07:52 PM

look for fricasseed critters! lol.

We have a 3 HP/3Ph exhaust fan in the boss’s big shop up in the rafters.

The switch gear and power box are down below on a big panel.

One day I went in and flipped the power switch and a great cloud of BBQ smelling smoke emerged along with mounds of exciting sparks and strange thumping noises.

It turns out a big chameleon had crawled up in the switch box and a bird flew in to get it. As I flipped the power the bird, chameleon and at least 2 of the contacts made Rond- aye – Vous.


-- Improvise.... Adapt...... Overcome!

View DonJ's profile


250 posts in 3521 days

#5 posted 01-30-2013 08:38 PM

Well, I opened up the switch box…no critters or bugs, nor anything else in there that I could see. It appeared to be pretty well insulated from outside dust, etc. At any rate, the large white wire from the power source (wall outlet) was burned in two where it was connected to the thingy-majig. As is obvious, I’m not mechanically inclined. The impeller was spinning after all power was off, so hopefully there is no issue with a frozen shank or something like that. I’m assuming it would not be a wise idea to simply replace the switch box without having someone check out the motor and other aspects of the unit? I would hate to replace it and it do the same thing again. Any other thoughts? Thanks for the interest.

-- Don, San Antonio, TX

View JoeinGa's profile


7736 posts in 2001 days

#6 posted 01-30-2013 09:19 PM

Now you KNOW you’re not supposed to let the smoke out of them wires!

Hope it’s an easy fix!

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View RonInOhio's profile


721 posts in 2858 days

#7 posted 01-30-2013 09:32 PM

Just curious what is the load limit on that circuit ? And current draw of the DC ? Good idea to have it checked out.

View brunob's profile


2277 posts in 4163 days

#8 posted 01-30-2013 10:29 PM

Since the white wire is burned and it’s supposed to be neutral, my guess is that is came in contact with one of the hot wires or contacts.

-- Bruce from Central New, if you'll pardon me, I have some sawdust to make.

View Richard Miller's profile

Richard Miller

139 posts in 1965 days

#9 posted 01-30-2013 11:46 PM

If the white wire is burned off check to see if it was grounded out . A 3hp motor should be on 220 volts so that makes the white wire one leg of the 220 volt system.

-- Dick F,Burg Iowa

View Don W's profile

Don W

18707 posts in 2561 days

#10 posted 01-30-2013 11:54 PM

Warning: no pyrotechnics in the woodshop.

-- - Collecting is an investment in the past, and the future.

View exelectrician's profile


2327 posts in 2421 days

#11 posted 01-31-2013 12:25 AM

The white wire, Hot in this case, might have been trapped between the cover and the box. After a while the insulation gave way and it shorted to ground burning the wire off.
This is a common fault. To fix use a wire nut to join the white ends together.

-- Love thy neighbour as thyself

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