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Customer reviews for 3,300 / 2,500 Watt Generac GP3300i Portable Inverter Generator for
3,300 / 2,500 Watt Generac GP3300i Portable Inverter Generator
4.4 out of 5 stars
stars
549 ratings549 reviews
  1. 5 stars67% (369)
  2. 4 stars19% (102)
  3. 3 stars7% (40)
  4. 2 stars1% (7)
  5. 1 star6% (31)

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Showing 161-170 of 549 reviews
Dec 1, 2020
OK1
3 out of 5 stars
3 out of 5 stars review

very good generator once it was repaired

I ordered the generator on line. After receiving the generator, I followed the directions of setting up and preparing the generator for use. The unit started but did not produce any electricity. I called for Generac for assistance and was offered either return or bring it to a service store. The was the best option for me. After a 5 minute investigation by the service person it was determined that a plug next to the battery was unplugged during shipping. Once this plug was connected to the display screen, the unit worked and is working well after 65 months of starting and running on a monthly basis. Generac, it have viewed several reviews of this generator on line and it appears this is a common problem. Please correct this issue.

Review from generac.com
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Dec 15, 2020
BKS
3 out of 5 stars
3 out of 5 stars review

Flawed Product

I purchased this unit 6 months ago from menards.com. Overall, this seems to be a good generator with the features necessary to support sensitive electronics and it is very quiet. However, it has some production flaws. The first thing I noticed is that the exhaust pipe does not line up with the grill that covers it. After a run of several hours, I'm guessing that the plastic grill will be melted where the exhaust pipe is pointing. The second thing I noticed is related to the maintenance of the unit. The oil drain for the unit does not actually exit the outside casing of the unit, leaving it up to your creativity how you are going to get the oil to drain out of the unit without making a mess on the inside of it. If someone has some suggestions to make this process clean and simple, I may increase the product rating slightly. So far a search of FAQs on Generac's website and a thorough search through the internet has not amounted to anything. The third thing I'll make note of is the quality. After just 6 months and 2 uses, the electric start on the unit no longer works.

Review from generac.com
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Jan 22, 2025
Scott
3 out of 5 stars
3 out of 5 stars review

Sucks

I bought one of these generators for a backup for my Ryobi generator and it’s so frustrating!!!!!! It takes forever to get the thing started vs my 10+ year old Ryobi to start. I can start my old Ryobi with 3-5 pulls and it has well over 100 hours on it as it’s over 10 years old! But my generac is much harder to get started and it’s got maybe 10 hours of use on it! I wish I had bought 2 of the Ryobi generators at the same time!!! You say you’re one of the best out there but even Coleman is easier to get started than generacs! I would give it a lower rating but once you finally get it running it does its job. I don’t think I will ever buy another one again unless it’s the cheapest option in a pinch. Good job generic!!

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Jul 18, 2020
galleneng
5 out of 5 stars
5 out of 5 stars review

Keep for emergencies and farm development

This is perfect for our requirements, here at home to keep the portable AC going IF NECESSARY, fridge/freezers. But great at the farm to run power tools and have available at the 'bug out' shelter/cabin. Easy to start, quiet, and versatile to move around. Recommend using non-ethanol gas exclusively,

Review from generac.com
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May 25, 2021
Will
4 out of 5 stars
4 out of 5 stars review

30 amp advertising misleading

I bought this to power a small rv with a small a/c unit. It is strong enough to handle it; however, I am having to purchase an adapter to go from the L5 outlet to the TT30r. $800 is a lot to me, but this is my third generac product and all have worked well. It is quiet. I just wish that I had known that it would not work out of the box without purchasing something else. I called customer support and told them what I needed and they did not inform me of that either. Not a negative review but a head's up for future buyers.

Review from generac.com
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Jul 6, 2021
Eric
5 out of 5 stars
5 out of 5 stars review

Very Quiet As Advertised

I purchased this for the same reason as many others. I wanted a reliable power supply for my travel trailer. I also wanted something quiet so others wouldn't be annoyed at camping areas. Set up was simple. Connect the battery, put in the oil and gas and it is ready to go. Started right up and ran smooth and quiet. However, while running, I heard a slight vibration noise that didn't sound normal. After a little investigation I saw that one of the standing frame supports was cracked where it mounts to the base of the unit. (Access door side on the left) I'm certain this is not a manufacturing flaw, rather something that happened during the shipping process. I called the Generac customer support number (On a Saturday during a holiday weekend) and spoke with a very nice woman named Linda. She registered my product and informed me that this is something that would be covered under the warranty. She was able to get me in contact with a local authorized repair shop. I have since contacted them and they have the replacement part on order. Service after the sale is extremely important. I was pleasantly surprised how smooth this process has been to get the repair done.

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Oct 1, 2019
Rayda
1 out of 5 stars
1 out of 5 stars review

I can't get it to start at all.

I really want my review to be 5 star. I bought the shelf model during a snow storm last April; last one in any store around. I brought it home and went back to work for a few more hours. I got home, poured the oil in, and the power turned back on. A week or so later, I thought I should try it out. I poured in fresh gas and pulled the cord. And pulled and pulled. About the 40th pull it took off. I experimented with it and killed it half dozen times and restarted it over a 1/2 hours time. Seemed OK. It has sat now for several months and I thought I should start it again. I poured in fresh gas and pulled till my arms felt like they were going to fall off. No start. I just registered and hope to follow through w/ a warranty claim. But at this very moment, it's a $575 paper weight.

Review from generac.com
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Feb 2, 2021
Otis
4 out of 5 stars
4 out of 5 stars review

An almost perfect generator

I bought 2 of the Generac GP3000i generators. Both are very, very quiet and easy to use. I can run our RV air, refrigerator and charge a golf cart at the same time on a single unit, but I like the parallel kit when I need a little more. I wish there was a way to do an extended run fuel system to get longer run time between gas refills. I think at this price point it should also have a built in hour meter. The little door at the top to access the spark plug flies off of both of them when it is in the bed of my truck and should really be better designed. One of the generators has less capability than the other and goes into fault mode randomly. We will see what customer service is like to correct that issue. I would buy another one if I needed it.

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Mar 11, 2020
Km5187
1 out of 5 stars
1 out of 5 stars review

Broke down after 3 hours

Bought this generator for California’s wild fire power outages, after 3 hours of runtime the generator started running rough and not producing power. Contacted Generac to fix it under warranty, Generac referred me to a local repair shop, I’ve been waiting for 6 weeks now to find out what’s wrong with it. I have a $1000 generator that has spent half it’s life in a repair shop without any answers.

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Feb 3, 2022
Kayak54
3 out of 5 stars
3 out of 5 stars review

Began positive

I have had several carb issues. I worked where we sold Generac generators, and always spoke highly of them. I owned a GP5500 prior w/ few problems. I always kept ethanol free gas or gas w/ Stabil in my IQ3500 . Which purchased 9/2019. I had one carb replacement a year ago ,after a month wait for parts from Generac. It would start but not run and the ECO setting would shutter and shut the engine off. Now it is repeating problems, after only being run on ethanol gas for less than 1 hour. We used it to run the 13.5K A/C or to run heater fan and charge RV batteries. We were able to do one or the other at a time. It was never able to pull the 25 Amp specs.

Review from generac.com
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