.

tompoland wrote:Following with interest and my DF64V arrived from df64coffee this morning (240v). in respect to the response time, I've bought 6 grinders from them and they are slow but dependable at around the 2 - 3 day mark. So give them a couple of business days and based on my experience they will respond. Cross fingers for you.

Thanks. Having already sent the pictures of the box and machine they asked for, yesterday they sent me a message asking for a video of the problem. I'm not sure how to show a dead machine on video but I took an iphone video plugging the machine in, of the RPM lights coming on and turning, and the power switch being depressed and nothing happening. I have now asked again where to return their defective machine, and still waiting for any substantive response.

I'm not worried about any of this as my credit card has refunded my purchase and I'm sure they won't make me pay for goods not delivered. I don't want to deal with DF64 at this point, have no confidence in their product, and won't accept a replacement. They had many chances to satisfy me, and that window has closed.

Cuprajake wrote:This is the 3rd or 4th defective df64v I've heard of this month though.

My machine has a serial number in the 60s, so I don't like the sound of those odds and one would think its likely that for every person posting on a forum about a problem there are several with problems who haven't.

I disagree, the df64v had a tiny launch that people outside of online forums probably would have never heard about. I imagine nearly everyone who has trouble with one will be reporting out on it.

FWIW I've had a df64v for a month now. I've gone through 5 bags of coffee, all espresso grinds, without any issue.

Cuprajake wrote:This is the 3rd or 4th defective df64v I've heard of this month though.

seem to be all 110v so far. but they may be the only ones out in the wild at the moment. three that I know of which is a concern.

they are starting to ship 240v now so we'll no doubt know more if there are any issues in that model in another month or two.

I put 2.5kg of seasoning beans through my recently arrived 240v 64DFV (yesterday). I pushed them through side by side next to a DF83 I was seasoning and the V didn't even break a sweat compared to the DF83 which is a real workhorse. The latter heated up a lot more than the V. I was quite impressed because I deliberately pushed the V hard to see if it would break. It didn't even get hot. So far, so good. Crossing fingers.

Less friction with brushless motors. Good to know it can hold it's own.
DF83 is a pain to season if doing it throughout a session. Motor is powerful but it would need ventilation holes or a fan fpr heavy workloads. It's also easy to clog if you grind too much at a time.
Extra points for the DF64V on this one!

Makes me wonder if the manufacturer was a bit too cautious with the fail safe a low RPM... Maybe the cutoff wasn't necessary at all?

Makanmata wrote:Thanks. Having already sent the pictures of the box and machine they asked for, yesterday they sent me a message asking for a video of the problem. I'm not sure how to show a dead machine on video but I took an iphone video plugging the machine in, of the RPM lights coming on and turning, and the power switch being depressed and nothing happening. I have now asked again where to return their defective machine, and still waiting for any substantive response.

I'm not worried about any of this as my credit card has refunded my purchase and I'm sure they won't make me pay for goods not delivered. I don't want to deal with DF64 at this point, have no confidence in their product, and won't accept a replacement. They had many chances to satisfy me, and that window has closed.

Don't write it off just yet. I'd say look to buy a Df64V from espresso outlet once you get your refund. Joe and the team there are well know for their excellent and prompt customer service.

I'm done with DF64. Their "customer support" has been egregious and after photos and videos of the non-functional machine they still haven't given me any proper response other than to say that they'll ask their engineer for his opinion - seemingly having at least dropped their initial plan to lay this on FedEx. They seem to have no appreciation that as a customer delivered a defective machine I don't really care why the grinder won't work - only that it doesn't work - and at this point it seems like they're just "circling the wagons" to try and ignore my issue for as long as they can . . . and perhaps the issue for the other people out there.

My machine is serial number 062 by the way, and I don't know how many machines have been produced in the "second batch" that mine is supposedly from the beginning of, but more than one defective machine should represent a fairly huge percentage of defects within this production run. Six Sigma is <3.4 defects per million, and even if mine is the only bad one in this production run -- which doesn't seem to be the case - its an unacceptably high defect rate.

This doesn't make df64coffee.com look good at all. I've always been comfortable recommending Espresso Outlet based on my own positive experiences with Joe Kolbs.
Can't say the same about DF64coffee. Actually feel like recommending people to be cautious when considering purchasing from them.

As far as the defective rate of DF64V's... As this point, no one except the manufacturer knows how many units were delivered and returned. 2 out of 62 is obviously much different than 2 out of 620. Production number can only tell you so much.

There's definitely something going on with the motor failsafe. @TOTK and @Sproyo have you reached out to the distributor to let them know of the stalling issue? Feels like the failsafe trips more easily on some units vs others.
When comparing motor specs with other current grinders, I feel like the 300W brushless motor should be strong enough to chew through green beans at 600rpm.

Joe and Barret from espresso outlet are very active on the df64v Facebook group. Their thoughts are that low rpm's are for filter and higher for espresso. No indication that the failsafe can be adjusted. They care very much about, at least the appearance of, customer satisfaction. I haven't had issues so I don't know how they would handle defective units.

Also agree that at this point haphazardly guessing about manufacturing problems comes with all the problems of small sample statistics, better to wait for more data.