Troubleshooting DeWalt DCG418
- Thread starter 1190R
- Start date
finn
Well-known member
Start with the switch, then the wiring. Third would be the board.
Did you try a different battery? Battery contact pins good?
Basic troubleshooting.
I bet it’s not the brushes (!).
Did you try a different battery? Battery contact pins good?
Basic troubleshooting.
I bet it’s not the brushes (!).
WWheeler
Well-known member
If it's only 6 months old I'd be contacting Dewalt.
www.dewalt.com
I own a many yellow tools some going back decades and have only ever had small issues twice, and both times I called Dewalt customer service and they made it right, even once when it was just out of warranty.
DEWALT Tool & Product Warranty Information | DEWALT
We believe a solid warranty package ensures the safety, reliability and service our products are meant to deliver — from the beginning to the end of every job.
www.dewalt.com
I own a many yellow tools some going back decades and have only ever had small issues twice, and both times I called Dewalt customer service and they made it right, even once when it was just out of warranty.
mike93lx
ALLIANCE MEMBER
Better not be brushes since it doesn't have any.
I agree on warranty. It's inconvenient, but you may just get the tool swapped.
Outside of that, open it up and see if anything looks wrong.
Thanks Finn
Any way to test the switch other than buying another one?
It looks normal BTW as does the wiring and capacitors
Doesnt really have a board
Have tried multiple batteries and pins look fine
It did run for a second after I put it back together after taking it apart
mike93lx
ALLIANCE MEMBER
Does that model have an overload shutdown? I wonder if it is tripping and causing it to shutoff. Any weird light blinking after it cuts out?
finn
Well-known member
Did you miss the wry humor in the brush remark?
Jacko264
Well-known member
As long as you have the receipt take it back and they will / should give you a new one that’s what I had to do
Graham
Graham
finn
Well-known member
Use a meter to check the continuity.
My wife’s faithful Bosch orbital palm sander quit on her. Six months later when I finall got around to looking at it, I found a power wire broken off at the terminal.
The terminal was available, but proprietary, so it probably cost $15 to fix.
If your grinder is relatively new just try to warranty it. There should be a phone number on the label or you can search for it.
No I got it
I did. Still want to fix itIf it's only 6 months old I'd be contacting Dewalt.
DEWALT Tool & Product Warranty Information | DEWALT
We believe a solid warranty package ensures the safety, reliability and service our products are meant to deliver — from the beginning to the end of every job.
I own a many yellow tools some going back decades and have only ever had small issues twice, and both times I called Dewalt customer service and they made it right, even once when it was just out of warranty.
Agree
Done. Still want to fix it
I did. Everything look normal
Even ran a few seconds after tear down and reassembly
Unfortunately no
Been done
Will try using meter on the switch
If it's bad and the replacement is $15, I'll end up with 2 good grinders
Hello, new guy here. I have been having issues with a couple of DCG418s. This is the description I provided when filing a support request via Dewalt's website.
"I have two of these and this one is the newer, cleaner and less used of the two. The other gets used in much tougher conditions and is still going strong. The problematic grinder is pulsing and not running at a steady RPM. It is like the speed control or brake are acting up. It is doing this with brand new flapper wheels, cutoff discs and no tooling at all. Please advise on what I need to do to get this resolved.
They responded to my inquiry and directed me to a service center (1 hr away) or online repair. Either is going to cost $ due to the note in the reply. "Regarding your concern, Upon further checking, your DCG418B is covered with a Three-Year Limited Warranty. One year of |free service for wear and tear, and the 3-year limited warranty covers defective parts."
The first started having problems about a year ago, when it was just over a year old. The second is now starting to exhibit the same issue. They don't get used that much. I am using them for wire brushing, cutting and grinding on some steel fabrication I am doing.
I have also had several 60v batteries die prematurely and now have a circular saw starting to have speed/switch issues and it looks brand new with very little use. I have many thousands ******* in Dewalt tools, batteries, chargers and can say I am starting to question this investment.
Sorry for the venting. In my searching online, this is the closes thread to what I am seeing with the DCG418 grinders. All I am finding are reviews (great for new grinder) and for sale (ebay...) links. I actually had to go freespoke.com search to find this thread. Google, duckduckgo were not even showing this thread in the multiple pages I scrolled through.
Any suggestions would be appreciated.
"I have two of these and this one is the newer, cleaner and less used of the two. The other gets used in much tougher conditions and is still going strong. The problematic grinder is pulsing and not running at a steady RPM. It is like the speed control or brake are acting up. It is doing this with brand new flapper wheels, cutoff discs and no tooling at all. Please advise on what I need to do to get this resolved.
They responded to my inquiry and directed me to a service center (1 hr away) or online repair. Either is going to cost $ due to the note in the reply. "Regarding your concern, Upon further checking, your DCG418B is covered with a Three-Year Limited Warranty. One year of |free service for wear and tear, and the 3-year limited warranty covers defective parts."
The first started having problems about a year ago, when it was just over a year old. The second is now starting to exhibit the same issue. They don't get used that much. I am using them for wire brushing, cutting and grinding on some steel fabrication I am doing.
I have also had several 60v batteries die prematurely and now have a circular saw starting to have speed/switch issues and it looks brand new with very little use. I have many thousands ******* in Dewalt tools, batteries, chargers and can say I am starting to question this investment.
Sorry for the venting. In my searching online, this is the closes thread to what I am seeing with the DCG418 grinders. All I am finding are reviews (great for new grinder) and for sale (ebay...) links. I actually had to go freespoke.com search to find this thread. Google, duckduckgo were not even showing this thread in the multiple pages I scrolled through.
Any suggestions would be appreciated.
Just to piggyback w/ SSH I hace the same brushless grinder about 4 years with light use and it started acting the same way only power intermittently untill it doesn't anymore. I have several 60v batteries ( also have 1 died after a year of buying it) so yea question my alliance with dewalt