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Customer reviews for 22,000 Watt Generac Guardian Series WiFi-Enabled , NG Standby Generator With 200A Automatic Transfer Switch for
22,000 Watt Generac Guardian Series WiFi-Enabled , NG Standby Generator With 200A Automatic Transfer Switch
4.7 out of 5 stars
stars
3,767 ratings3,726 reviews
  1. 5 stars84% (3,160)
  2. 4 stars9% (355)
  3. 3 stars3% (104)
  4. 2 stars1% (33)
  5. 1 star3% (115)

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Showing 141-150 of 3,726 reviews
Mar 22, 2026
Reviewer name: anniebie
4 out of 5 stars
4 out of 5 stars review

Seamless

I bought this magnificently engeneered machine in February this year. My neighbours and friends made fun of me, saying that I didn't need a generator for the entire house. The thing is, I work from home online. No power = no revenue. I own five pets. No power = no drinking water because I have a surface well. No power = no drinking water (for humans too), no flushing, no showering nor bathing. Since the installation a month ago, we have had five power outages which would have cost me five days of work. The transition to the generator power is absolutely seamless, in fact, I was not aware of any of those outages, happily working away in my home office...I learned through the neighbours' complaining about the length of time it took to reestablish power. On a couple of occasions, I could hear a 'lawnmower' going and thought to myself 'who on earth would mow the lawn under three feet of snow! Only then did I realize that the lawnmower noise was actually the generator doing its job! lol I am so glad I did not listen to my neighbours and friends! I rated four stars only because there was a set back with the installation date.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Oct 5, 2023
Reviewer name: tenTom
1 out of 5 stars
1 out of 5 stars review

Be warned!

Had several issues with the installation and operation of my 24Kw generac generator. Primary issue is that they say you get FREE mobile link connectivity...which is only true if you have slow, and outdated wireless connection, a 2.4 gigahertz source. If you have that you are in, if not, you pay hundreds of dollars for an upgrade, or they say to get a wifi extender that is at the slower hertz and puts a low security connection outside in your yard. Had to call Generac, which took days because "unusual phone call volume", and had to pull the information out of the help desk that the wifi must be specific to the 2.4 gigahertz. It could be another error by my installers, but research says check your wifi manual, and I never got one, and can't find it online. Other issues were time required to install, and if you going to a natural gas model, there could be a huge cost on upgrading your gas meter. The last issue is the problem with Generac's 24/7 customer support that puts you on hold. I always gave up after 20-25 minutes.

Helpful?4J7FW5DJ5Z5113606214426
Dec 4, 2022
Reviewer name: Happy Buyer
5 out of 5 stars
5 out of 5 stars review

Must Have for East Coast living!

I moved to PA from CA 2 years ago and when I was doing my walk through on my new house my neighbor said that I should get a generator, the power goes out often in this area. A few months later the power went out a tree took down the power line at the end of the block. The power was out for 2 days. I ordered my Generac Generator immediately! All the homes on the block had their generators running and the lights were on. My wife and I sat on the front porch in the dark and watched the moon. Ha Ha. We have had 2 power outages since I have had the unit and it is such a great feeling to know that you don't have to sit in the dark. Well worth the investment. I did a lot of research and Generac seems to be the best system out there for homeowners.

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Apr 24, 2022
Reviewer name: Unhappy Camper
1 out of 5 stars
1 out of 5 stars review

May not work in snow and wind

We had one installed on Cape Cod in Dec 2021, and it failed during a nor'easter in Jan 2022. Snow blows into the vents, melts, then refreezes on the air filter. Removing the air filter (as suggested by Generac's emergency service) just pushes the ice further down the power chain. Seems like a design flaw, to have no way to divert snow blowing in. When I called Generac to ask for a fix, they only offered to sell me warmers (for another few hundred $$) which may not work. Their attitude was indifferent; they claimed I was the only customer who had ever had this problem. That's a lie - my local installer had reported to them a hundred customers on Cape Cod with the same catastrophic failure during that storm. So this may work well for you if your climate is mild, but don't count on it during a winter storm with wind.

Helpful?4J7FW5DJ5Z5113606214426
reply from Supplier Response

Thank you for the review, we appreciate your feedback. We recommend contacting our customer support team at 888-436-3722 as they will be better able to assist you.

Mar 13, 2023
Reviewer name: useless warranty
1 out of 5 stars
1 out of 5 stars review

warenty useless

after my original warranty ran out I purchased the next warranty and I have spent about $6,000 on repairs because it seems nothing is covered. Had to replace my mother board twice within about 18 months and neither one was covered under warranty along with other problems. It is strange Generac sells a warranty and I have not found one item that is actually covered

Helpful?4J7FW5DJ5Z5113606214426
Apr 14, 2026
Reviewer name: Elton
4 out of 5 stars
4 out of 5 stars review

Overall satisfactory

Since these initial and really no longer relevant items above there have been two emergency stops. I basically emailed everybody for whom I had an address and Kirsten Sandoval responded and told me how to to fix the error. "This issue can be resolved by going out to the generator, making sure the black switch located on the back of the generator is in the up position open the generator lid press off press enter, press auto, and that should clear the code." The first time that occurred was September 7, 2025 according to the date on the email and it occurred once more earlier this year. There is a possible future problem here in that my spouse is not mobile and I am becoming less mobile with age and I can foresee some time in the future when I can't go outside and fix it myself so if there is a permanent fix that would be great. For a period of time after installation the mobile connection would fail for a period of time. I made several complaints and perhaps somebody came out and fixed it when I wasn't here or they did something online to fix it but it has worked fine since.

Review from generac.com
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Jun 28, 2023
Reviewer name: Terry
5 out of 5 stars
5 out of 5 stars review

Great Product

Peace of Mind I just had the 18kw installed. I had a Great Experience with the Contractor. They came out and Explained Everything I needed to know. I have Natural Gas appliances so I didn't need a Huge Generator. I have heard it run and Seen it work. I Highly Recommend the Generac. It Cost Me a good bit of Money but I sleep with a CPAP Machine and My Wife has Insulin in the Refrigerator so We Needed This. Right Now I have Peace of Mind!

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Jun 3, 2026
Reviewer name: FredB
5 out of 5 stars
5 out of 5 stars review

Well engineered and assembled!

Although I have just had this unit installed a month or so ago, my wife and I are so happy of knowing that we will have power when there is an outage. The cool thing is that it is scheduled to run every 2 weeks for a few minutes. We have experienced this ‘run’ and it is very comforting to know we have a great solution in case of an outage. In addition, the noise level was outstanding!

Review from generac.com
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May 24, 2026
Reviewer name: Myles
5 out of 5 stars
5 out of 5 stars review

Awesome product, worth the investment.

Awesome investment. We needed to install a generator for medical usage. When we started caring for my mom she needs oxygen 24/7. The generator was a life saver because since we had it our electricity has went out on several occasions and it switched over quickly with no problems. Thanks Generac.

Review from generac.com
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Apr 10, 2026
Reviewer name: Threw16KDollarsAway
1 out of 5 stars
1 out of 5 stars review

Don’t Waste Your Money - Buy A Different Brand

I bought this generator and installation was attempted by a Generac “Elite” dealer and installer. Now, 3 weeks later, and after multiple attempts by the installer, IT STILL DOES NOT WORK! There are battery charging error codes and fuel delivery error codes. If it comes on during the weekly self test it shuts off after 4 minutes, the warning light turns red and it sends a warning that it won’t restart in an emergency. Don’t waste your money buying a Generac 22KW whole house standby generator. Look at other brands that actually work .

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426