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Customer reviews for Generac Guardian Series WiFi Enabled 18, 000-Watt, LP/17, 000-Watt, NG Standby Generator for
Generac Guardian Series WiFi Enabled 18, 000-Watt, LP/17, 000-Watt, NG Standby Generator
4.8 out of 5 stars
stars3,049 ratings3,048 reviews
  1. 5 stars86% (2,637)
  2. 4 stars9% (272)
  3. 3 stars2% (72)
  4. 2 stars1% (16)
  5. 1 star2% (52)

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Showing 401-410 of 3,048 reviews
Apr 6, 2026
Rmooring
5 out of 5 stars review

Love our Generac❤️

We have been thinking about buying a Generac for years. So glad we finally did! Our neighbors had their installation done in 2018. Every time a storm caused an outage, they were completely comfortable, up and running! It has made us feel much more secure with the hurricane season coming.

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062
Apr 18, 2026
Jjj210
3 out of 5 stars review

Bought 2 months ago and not satisfied ,Contractor had to Come 4 weeks straight to deal with low fuel pressure fault/shutdown during weekly exercise. Not very confident that generator will work properly during loss of power due to these issues Contractor who installed where outstanding

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062
Apr 15, 2026
ChuckG
5 out of 5 stars review

Excellent Great installation, look great Very impressed with the Installers effort to evaluate our power requirements He contacted the local utility company and found out our average and peak power utilization from the past two years and installed a system that will totally support the whole house

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062
Apr 6, 2026
Law2
5 out of 5 stars review

Now we have peace of mind in a storm

We bought our Stand by Generator recently and we are delighted with our purchase. I don't have to dread dragging my walker over the extension cords in the floor when the power is off. Now we simply go on as usual after a few seconds. Thank you Generac and Mr. Allen of Allen Residential Electrical for giving us peace of mind in stormy weather.

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062
Apr 4, 2026
Rita
1 out of 5 stars review

2026 Generator SUCKS!!!!

We purchased a brand new 2026 Generator. It is now April and the thing still does not work. Every time the power goes out ... the generator runs for 5 seconds and then shuts down and we get a "failed" message. Our installers (Blue Sky Plumbing) has said they have installed 23 of the these same generators and ALL OF THEM are having the same issue. I would not purchase a new generator again from these people and if we don't get our money back ($50K), we will be suing Generac.

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062
Apr 14, 2026
Elton
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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Mar 27, 2026
Don1
5 out of 5 stars review

Seamlessly continues power supply.

I bought this unit for a rental tiny home on my property. I had already installed a 17kv Generac which services the main house. We have electrical outages several times per year in our rural location and our Generacs work flawlessly to seamlessly continue to provide power when this occurs.

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062
Apr 10, 2026
Threw16KDollarsAway
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?6EVWNRJZHWSL13615064062
Apr 2, 2026
Momma
5 out of 5 stars review

It comes on when power goes out.

Had 15 different power outages in the last 12 months and some outages lasted days. We have had no power outages yet sense we bought and installed the Generac generator. Now when storms come I'm not worried about power loss but I am scared of tornadoes.

Review from generac.com
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Mar 26, 2026
GWilson
5 out of 5 stars review

Power in mind

Our Generac was installed new, at the end of February and we are really excited to have it. Although the power has not failed as of yet we feel more secure having the backup/emergency power. I have been disabled for 10 years now and having to lug around a portable generator only to run a fridge and furnace fan was getting very hard to manage for me. Now I can sleep a lot better knowing all that and more will be working as it should when commercial power is not available.

Review from generac.com
Helpful?6EVWNRJZHWSL13615064062