Help Domino xl 700 slowing down.

Looking at that video again I reckon it has to be faulty triacs/mosfets on the control board not boosting power under load.
 
How can a controller board fail? How can I prevent that from happening? I don’t have any issues with electrical lines before. All of my other power tools are fine. It there anyway to check my plugs?
 
I'm talking the controller in the domino, if the mains has been ruled out, the cutters fine, then I think it must be the IC's on the board or some other issue with the board.
 
Hello so I got the domino XL back and they told me that there nothing wrong with the machine. I decided to change the controller board and still the same. I figured out the problem would be the motor it self. But can’t believe Festool said there’s nothing wrong with my machine after watching my video. 😡
 
This is not normal in any way.

Try another power cord, in case the problem persists: send them the video to watch.
 
That is quite a mystery. On the one hand, you tried everything, but still have a lemon. On the other, Festool looked at the machine TWICE, and found nothing wrong (too bad they didn't take a video showing what they saw).

Where did you buy the XL? Is it still possible to bring it to the vendor and have them run it in your presence? The vendor shouldn't have any kind of electrical issues if they are really the cause for the abnormality.
 
I got this May 2022 at Hearthville Hardware via Amazon. Return window is over. It still cuts but it’s slow. Probably just going to wait to completely stop working before sending it again for service.
 
So unless I'm mistaken and missed it, even though you've tried it on a UPS you haven't actually tried it at another location? This is probably the last test you can try to rule out any weird grid issues where you are. Take it someplace that would be a totally unrelated grid/supplier to what you have at your place ideally.
 
I will try to bring it to another house but this only happens during mortising. Any ways my UPS is showing 126v from the grid will that matter?
 
Do you have a watt meter? I'm wondering what the current is when it cuts out. does it spike or go down?

Something like the Kill A Watt Meter. or graphing multimeter... or an oscilloscope if you happen to have one just lying around

i like the safety sandals
 
He has been sent down the rabbit hole with the power problem references. It will end up being time wasted. Were electrical supply the issue there would be failures in his home. To completely rule it out go to someone else's house and do some sample mortises.

Machine needs to go back to Festool for a power supply and/or motor replacement. 
 
JimH2 said:
He has been sent down the rabbit hole with the power problem references. It will end up being time wasted. Were electrical supply the issue there would be failures in his home. To completely rule it out go to someone else's house and do some sample mortises.

Machine needs to go back to Festool for a power supply and/or motor replacement.

Hence the earlier remarks to try it at another location.
 
JimH2 said:
Snip.
Machine needs to go back to Festool for a power supply and/or motor replacement.

As it stands, that's not gonna happen because twice, Festool has not found that to be a problem. It won't replace anything in the machine that it considers working well.
 
Thanks guys for helping. Anyways I did run it completely to my APC ups 1500 running only backup battery not plug to the grid it still have the same issue. So I think this will result in the same problem no matter where I bring the machine to another house.
 
Jt2694 said:
Thanks guys for helping. Anyways I did run it completely to my APC ups 1500 running only backup battery not plug to the grid it still have the same issue. So I think this will result in the same problem no matter where I bring the machine to another house.

That's what logic says, but after all that has been done so far, the only two things that are possibly different to the testing Festool has done, is the mains, or the way it's being used. So I would still say bring it to work or somewhere else to at least rule out some weird thing with the mains.

At this point what have you got to lose by not ruling out anything you can?
 
Got the tool run on my brother in laws house and still the same. The domino I got is a lemon. I will continue using it until it completely stops working and bring it back to Festool for warranty service. Hopefully they will fix it or change it to a new one.
 
If you ask me, the onus should be on Festool to record a video of the machine's running when it was at its place for fix for the second time, and show it to you that nothing was wrong. In fact, I think that should be the STANDARD procedure in cases like this. No good customers would send their machine in TWICE for service if it is working properly. (My brother's luxury car dealership sends him a short clip showing their technicians working on his car everytime his car is in for an oil change, etc. -- miminal work, added customer satisfaction (or reassurance)).
 
Yeah this is just a bizarre saga. It's hard to imagine a company that prides itself on quality tools not doing due diligence in testing a unit sent back twice.

I'd recommend reaching out to an account manager or service manager and provide them with links to some of your own high res videos clearly showing the issues (whack them on Insta, Youtube, etc), as I think you really need to get someone invested in the issue, as opposed to simply sending it to the service team. Start with the vendor you bought it from, they should have a contact placed high enough that should be able to help.

It's also possible not all the information is making it to the service dept as to what the issue actually is, which means some of the nuances might be lost.
 
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