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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
3,788 ratings3,747 reviews
  1. 5 stars84% (3,177)
  2. 4 stars9% (356)
  3. 3 stars3% (105)
  4. 2 stars1% (33)
  5. 1 star3% (117)

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Showing 831-840 of 3,747 reviews
Jun 15, 2026
Reviewer name: JNYjumpup
5 out of 5 stars
5 out of 5 stars review

We Got PREPARED!

After SoCal Edison left us without power for 19 days in 2024 and had surges that destroyed our switch panel and side-by-side refrigerator / freezer we updated to the new 10 KW unit with all electronic panel and surge system and new UPS for our computer system. We also added a whole house insurance program and a service / monitoring system / account for our generator. So far we are very happy with our choice to upgrade our system.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Apr 27, 2026
Reviewer name: RI2024
4 out of 5 stars
4 out of 5 stars review

New Whole house generator

The generator does what it is suppose to do very well, it's been a savor for a couple storms and power outages. But I have been made aware that the generator should be shut down after prolonged outages intermittently. Which I'm trying to understand what one does when you're away for a prolonged period of time and there is a prolonged outage while you're away?

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Aug 22, 2023
Reviewer name: David
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Life after Generac

This is a great generator! I purchased it from this manufacturer because everyone I know that own one is very pleased. The instructions are very clear and straight forward. Also, due to popularity of this product there are a multitude of videos available if you have questions including videos from generac. Last but not least, I love the fact that I always know the status of my device through an app!

Helpful?4J7FW5DJ5Z5113606214426
Apr 2, 2026
Reviewer name: LightsOutInAsheville
2 out of 5 stars
2 out of 5 stars review

Beware

Died 30 minutes into TS Helene 9/24. Even with all the $$ and "certified" service, a wrong oil filter was used causing an oil blowout through air cleaner. 24 hour support a joke, kept referring to companies inside the storm zone (they were wiped out). Took six month to repair after reaching out to a very large generator company 2 hours away. Oh and mobile kept reporting everything was ok (generator was off) for those 6 months.

Review from generac.com
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
Helpful?4J7FW5DJ5Z5113606214426
Apr 22, 2026
Reviewer name: Paul on the Cape
5 out of 5 stars
5 out of 5 stars review

Reliable during a 4 day power outage

I bought my 22KW wifi enabled unit in April of 2024 along with a service contract from my authorized installer. For the 18 months the unit reliably performed its weekly check run along with providing power during half a dozen power outages that typically lasted from 15 minutes to 2 hours. Many times I didn’t even know the generator turned on and only found out in the monthly email report. Then we had a bad snow storm in March 2026 that knocked out power for nearly 4 days. The generator ran flawlessly. I am very happy we bought this unit.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Apr 9, 2026
Reviewer name: Plainsman70
4 out of 5 stars
4 out of 5 stars review

Runs quieter and has great App features.

We bought this 24KW four months ago and was only able to get it installed a month ago. So far we're very pleased with it. We bought a 22KW Generac 20 years ago and got a lot of usage out of it in south Louisiana. Back then it was referred to as a "whole house generator" but we soon learned that didn't mean you could run "everything" in the house on it. It running under a load because of a power outage and my wife was running the clothes washer, dryer, microwave, the electric oven and all the lights at the same time and it handling the load just fine until our 3.5 ton AC kicked on and it started to bog down badly. Lesson learned!! We have only used this one in the exercise schedule and not under a load yet. It is quieter than our old one though. Be sure to get the App for it if you want a more detailed status of it and setup an exercise schedule.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
May 22, 2026
Reviewer name: Rural1
4 out of 5 stars
4 out of 5 stars review

Does the job well!

I have had it for a year now, and of course there has not been a power outage since the installation. However I did decide to run a simulation of an outage and was very happy with the results. My only issue is the description provided on Generac’s website, makes it sound like the noise level is just above the level of an air conditioner. If I had an air conditioner that loud, I would be worried!!

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Mar 31, 2026
Reviewer name: Nel44
5 out of 5 stars
5 out of 5 stars review

No more power worries

I just had this whole house generator installed to my delight. It works seamlessly with household with low noise level. I can run everything in my household without interruption. The only difficulty was using their APP since we are not very Teck savvy.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Apr 6, 2026
Reviewer name: Law2
5 out of 5 stars
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?4J7FW5DJ5Z5113606214426