Sun Joe 15-Inch Electric Powered Lawn Dethatcher with Scarifier Blade Reel and Collection Bag - 13-Amp Corded Yard Power Rake Tool Machine for Grass Thatch Removal, AJ805E

Works great BUT came with a broken ejector flap - the part is plastic. Look online and you'll see that a lot of people either received it broken like I did or it breaks soon after use. It can be fixed with a bolt. Though I'll probably 3D print something up. Sunjoe's quality control is garbage. I would avoid the brand. Update 04/22/2026 After reaching out to Sun Joe directly about the issue I had one of the best customer service experiences you could ask for. They quickly identified what the issue was (sent them a picture), ensured my purchase and then they simply resolved the issue. The dethatcher/scarifier itself is awesome. I have not dethatched my front lawn in 10 years or more. The dethatcher removed over 10 full lawn/leaf bags full of dead grass. The lawn looks pretty bad right after but after a few days of watering it looks better than it did before. I also scarified and then over seeded. In 4 - 5 weeks I will see if the work paid off. Thank you the awesome support Sun Joe!!!

All the video reviews I watched were absolutely right: the Sun Joe 15-Inch Electric Powered Lawn Dethatcher is the perfect tool for the job. I was a bit skeptical about whether a corded electric machine could handle my yard, but the 13-amp motor didn't hesitate for a second, ripping up an unbelievable amount of dead grass, moss, and compacted thatch on the very first pass. The 15-inch path covers ground quickly, and the adjustable depth control allowed me to tune it perfectly so it cleared out the debris without tearing up my healthy turf. As most reviewers noted, you definitely want to leave the laughably small collection bag off and just use your lawnmower to scoop up the aftermath, but otherwise, this powerhouse completely saved my back and transformed my lawn. The unit was strong and never bogged down. Plus I could not get over how easy it was to assemble. Best purchase for my lawn I have ever made.

The SunJoe Dethatcher is a great machine, does the job well with very little learning curve. I did my back yard with it a week or so ago and I have seen improvement in the lawn already, I typically mulch when I mow, didn’t realize how thick the thatch was until the lawn start looking ragged. The machine pulls itself along so there’s little effort required, it doesn’t seem to bog down when it hits thicker spots. I suggest try adjusting the angle of the handle (there’s an adjustment knob) to see what works best for you. I started on the middle setting and didn’t think to try another setting until I was almost through. Turns out the setting that pushes the front of the machine closer to the ground did a better job for what I was doing. I’m looking forward to trying the scarifier drum this fall when I’ll scarify then over-seed. My only criticism is the original machine was broken when I received it, a small nylon hinge pin on the back flap was broken. I contacted the manufacturer who told me this pin was not a replaceable part, instead the sent me a new machine. This part can’t be worth a dollar and from the looks of it would be simple to replace if they could send a new pin. That would have wasted a lot less resources. With that said, the replacement was mailed out right away and both the damaged one and the replacement were delivered well before the estimated delivery dates.

Fantastic unit !! I used the recommended 12/3 15 amp 100 foot cord. It did such a great job. I used the unit right out of the box. I used the Scarifier . I set it on the 2nd lowest setting (lowest would be too deep). I did not use the bagger. The unit moves right along, no bogging down, very light weight. Cant believe how easy it was to use. I would definitely recommend. See photo.

Works surprisingly well. I used the scarifier attachment and it will essentially till up your yard if you set it too deep. I was doing a whole lawn renovation so i actually wanted that. I will try it again this fall just to scratch the soil a bit before overseeding. It comes basically assembled other than the handle. I found the bag attachment to be kind of useless. I ended up just raking up everything after I was done.

If you damage the Thatch Collection Bag this product is USELESS, is it IMPOSSIBLE to get a replacement bag. I have been trying for 18 months to find a replacement Collection Bag anywhere. I even contacted the manufacturer directly and all you get is "Sorry That Part Is Currently Out of Stock" from both Sun Joe and every retailer that carries this model. How they can continue to sell these without having the part that is most likely to be damaged or lost available for replacement is honestly criminal. The catcher bag was flimsy to begin with, my daughter caught it on a rake in the garage and the thing ripped like paper along the seam (absolute junk) and that was it. I've had a 169 dollar paperweight sitting in my garage ever since. Also, you CANNOT use this without the attached Collection Bag, it throws rocks and debris at a very dangerous velocity directly out the back and into your legs without the bag attached. If i could give this product a ZERO I would.........Amazon should stop stocking and selling this product until Sun Joe provides a supply of BASIC replacement parts for it.

Works fantastic for dethatching lawn. Good adjustments and lightweight. I’m very pleased with this machine!!

Used the dethatcher last week to overseed about 10,000 sq ft of my lawn. Using How to with Doc's method of planting seed. It worked fairly well. We had rainfall a couple days prior to starting the project. Some areas of the yard were still a little wet. Had a lot of trouble with the two dinky back wheels locking down with mud packed into the frame above the wheels. Real pain to keep them cleared. Other complaint was the motor vents on the front of the machine were blowing the grass seed away on the bare areas that I was trying to get reseeded. Pretty frustrating. Had to put down more seed and cover with soil to get these areas planted. Sun Joe should relocate the vents to blow more upward or to the sides not forward and down where it blows your seeds away. Last complaint...one of the ejector flap hinges (plastic crap) broke before I finished the job. Impossible to find a replacement. Looked online at Shopjoe. Online chat deferred me to a human support person. Tried that and got another robot who could only direct me to the online website that already proved to be of no help at all. Sad that it should be so hard to get one little piece of plastic crap. Only good thing about all this is the machine itself wasn't terribly expensive. Just another made in China piece of junk...made to look like it will work but doesn't hold up very well. I think I'll be able to come up with something to replace the hinge so I can continue to use the machine without having to wrap bungie cords around it to hold the flap in place. I do like what it does for my yard. Just need to make sure it's not too wet and try not to break anything. I would probably buy this again as long as the price doesn't get much higher. Update: My apologies to Chinese Engineering! I made the repair to the ejector flap with parts found at our local hardware store. Took a little modifying but got it to work. Noticed that the SunJoe machine is actually a product of Vietnam.

This did the job as required with ease. Easy to setup, clean and store. Nothing fancy. The catcher is quite small so expect frequent stops. Great value.

Works great. Takes out a lot of dead grass.

The lawn on our new-to-us property has been neglected for the last few years and things are pretty matted, so I bought this thing to help give new life to the property and give things a bit of a head start for next year as we head into fall. I scarified the backyard yesterday, a couple hours after receiving it, and man, it works really well! Starting out going north-south, then doing a second pass going east-west, it ripped up a pile of dead grass - so much so that I could only do a couple of passes before having to empty the pointlessly undersized basket, so I quickly decided to run it without the basket and just leave the door down. A little later I ran across some small washed rock that had worked their way out of the flower bed over time and the pin that holds the door to the body broke. This was annoying, but I fixed it by sliding an equivalent bolt into it's place and finished the yard without any other issues. After both passes from just the back yard, and using the lawnmower to pick up the spoils, our green bin was completely full, so I guess I'll need to wait until next week to do the front yard. Over all, I'm impressed. Things to note: The body is definitely cheaper plastic, so I don't know that it'll last 10 years or anything, and I definitely wouldn't leave this outside in the elements, but the scarring blades are in perfect condition after the back yard, even with hitting some rocks. I haven't tried the dethatcher tines yet, as I needed to start with something more aggressive, but I have no doubt they'll do a solid job.

I would like to speak with a rep from sunjoe, I got about and hour out this machine, it just stopped and will not run, I am concerened it is burned out. I think they use copper coated aluminium windings in the motor, and those will cook instantly, I looked for a thermal reset switch but could find none. We have a modest yard and did less than half of it. I am looking into the warrenty if there is any. I may have gotten a bad machine, but ya if they use copper coated aluminium windings I would bet it is cooked.

Assembling the handle is all that is required to get you up and running. I was skeptical till I first used this machine, it is incredible how much thatch it removed even after I had manually raked my lawn prior to me purchasing this machine. Switching from dethatcher to scarifier is simple, flip over machine, removed fastener bolts and switch implements. The removeable collection bag is a joke WAY TOO SMALL, fills up in less then a minute, tried using it once and only once. I rigged up the discharge door so it is partially open to deflect and to discharge the thatch down and behind the machine, if you leave it closed the thatch will bung up under the machine. If you leave the discharge door fully open your legs will be pelted with thatch and debris discharged by the machine at high speeds-and it hurts. I use heavy duty 10 gauge extension cord and have not had any issues, I have read reports of people using light duty extension cords and the motors overheating and burning out. Storage is easy, handle folds similar to a lawnmower, because of its light weight I just hang mine on the wall of my shed in the back yard. This past summer my lawn was the greenest and fullest it has ever been and people complimented me on that. Spring will be here soon, time for dethatching-second summer, so far I highly recommend this product.