Generac Power Systems Reviews

Had my Generac 9 years and the engine died 1/30/2026. It is under warranty and still haven’t had it replaced. Generac Customer Service is awful and I would not recommend them to anyone looking for a full house generator. Use anyone but Generac. Awful!!!

I purchased the Generac based on good reports. In terms of reliability. However, within I warranty period my motor was defective and was replaced. Unfortunately within 3 years of it being replaced the new motor seized And Generac did not offer any type of warranty on the new motor defect. I contacted generac head office hoping to work out some type of a warranty agreement. But with no luck. If you're going to provide a customer with a new motor that motor should not seize within a couple of years with no recourse to the homeowner.

We have a whole house Generac generator installed in 2017 or 18 with a 10 year warranty. We thought we were covered for power outages. It seems that every year, for the last 3 -4 years something goes wrong that isn't covered under warranty like circuit boards and connectors. Just had power outage. It came on fine but when power was on again generator went off but didn't transfer to power co. Had to call service co. to come out 5am to fix it. Needed new board (that was replaced last year) again. $350 again.

I needed this generator to come through and work truly one time. 2 feet of snow. Power went out the everywhere. Generator never worked. Service for my system came three days later. I assume the other generators also failed.

Buy any other generator but General. Their customer service is non existing. They wrote on their retail boxes and on their owners manuals DON’T RETURN TO STORE. CALL 888-436-3722 and when you call some old lady answers that has ZERO product knowledge and is about as useless as they come. If fact this is a third party company that Generac has contracted to provide customer service and technical support but they know absolutely nothing. Conclusion, Generac is a lousy company that doesn’t give 2 hoots about providing customer service. Better look for another option.

I not had any luck with mine. Bought it new. Only had it 8 months or so and it's been repaired twice, with power going out. Now I'm sitting here with no power and it's not running. Will have to get looked at again. I'm told warranty don't cover what's happening.

First, you spend a small fortune just to buy the unit and install it. Then comes the real nightmare: maintenance and repairs that are outrageously expensive, to the point where it feels like a scam. You might as well buy a Porsche and rebuild the engine—it would honestly be cheaper to maintain than this so-called “reliable” generator. My unit cost $6,000. A Generac-authorized company charged $1,200 just to diagnose an issue. Then we were told the control board needed replacement—not the whole board, mind you, just a small chip—at a jaw-dropping $3,200. That’s insanity. For a “small” residential generator.

Junk. Is year long dispute with a bad generator. No warranty has been met. Will pay to have it picked up and fixed and buy a Craftsman. Pure junk. Hope your company folds. It 0 degrees outside. Glad I have a wood stove. Seen a posting on getting in touch with the Attorney General. Think I'll do the same.

Spent $15,000 on a whole house Generac & less than a year later unit doesn't work and trying to get warranty service is useless. Worst purchase I've ever made. Warranty is worthless. Find a brand that will actually stand behind their warranty claims, or you'll be sorry when something goes wrong. I can't emphasize enough how worthless their warranty is and how, in such a short time, the generator has broken down.

I have a Generac solar system.. It has been installed for 3 years..hasn’t gone 3 weeks without something breaking down. From defective snaps, pvlinks and a controller, to the battery system not switching over during power outages this system has been nothing but a nightmare.. and the dealer they told me to call that sold and installed the system won’t service the system, as he states they are too unreliable… he states he no longer sells them.. worst decision I’ve ever made to use Generac for battery back of of my solar system.

Excellent, reliable generator that we have had for 4 years. Horrible antique wireless adapter that should have been updated years ago drops continuously. Makes the mobile app useless unless you enjoy opening up your generator and reconnecting weekly.

We live in Hilton New York outside of Rochester. Integrated Power Supply Incorporated so does a Generac high-end generator. We have a 10-year warranty that's supposed to cover everything that we paid extra for. It was installed July 23rd 2025 by January 9th 2026 5 and 1/2 months later it's dead. The motor blew out and spewed oil everywhere and instead of giving us a new machine they refused so we went through the appeal process with generac. Brittany ** the appeals decider decided to refuse us and just give us a new motor instead.

I bought the 26kw generator for our all electric home. We contacted Generac who referred us to Echo Electric Supply, Council Bluffs, IA. They in-turn gave us the name of authorized installers and we chose one of them to install the unit. The unit was installed and I bought a maintenance agreement for it for 2 years from Generac recommended service facility. We purchased a brand new tank from Knudsen oil & propane, Washington, NE. They have installed over a hundred generators and been in business for 40+ years. 2 months later we get a phone call from the installer that the inspector had written a comment in our Generac files saying we had inadequate tank for this propane generator. We had the inspectors name and phone and his boss. I called the inspector, very polite young man and he said he never put any comments in the files. I then called his voice mailed boss, not uncommon when trying to reach echo electric.

I bought a Generac 10kW standby generator from the local dealer here in DownEast Maine just over four years ago. I am currently awaiting delivery of my SECOND replacement engine. The first one absolutely drank oil - a quart bottle was lasting for less that 12 hours runtime, and after the dealer tried and failed to fix it, Generac told them to replace the engine. The replacement engine has just died, the dealer's tech believes with a broken crank rod, and I'm now awaiting another replacement. The dealer's tech was honest enough to tell me that they'd had a lot of problems with the single cylinder engines, and consequently no longer sold them. Generac refused to consider any kind of upgrade, even with me paying any difference in price, all they would tell me is that if I wanted to replace the generator with a different model, I would just have to buy a different generator from the dealer.

Worst purchase experience of any product in my life. The 24Kw generator arrived dead on arrival. I spent months (still not fully resolved) trying to get a replacement but they insisted on having several repair companies try to repair what was several broken seals and an engine that was cracked. They still insist that they acted in good faith but only replaced when I threatened to report them to the state Attorney General office. I was making payments for months for a non-functional generator and Generac still refuses to reimburse me for that period.

Purchased a solar system with inverter, panels and battery cabinet in August 2021. It has not functioned properly since it's been installed. I have a 25 year warranty which is totally useless. The electric company that Generac is contracted with in my area, comes out and does a scope and determines what's wrong and that it would be a warranty covered repair. Generac denies it. It's been nothing but a headache. I have an active lawsuit with this company and open BBB complaint. Literally the worst experience of my life. Do anything but buy any generac product. I've been trying to get a single issue fixed for 7 months. According to the electrician they contracted and sent out, it's an easy fix but they are purposely denying it & trying to save money by not fixing issues. So it's blatantly intentional.

I question the low scores for Generac. Our experiences have been exceptional, both with the generator and the generator support team that’s available 24-7. The system is a little techy for me and being able to call them and have a person be patient, knowledgeable and clear to understand to assist is well worth the peace of mind this purchase has provided. On a 1-5 scale, I give them 100!

I bought a new gp9200e. Ran it a few times here and there to make sure it was ready for use. Well time finally came and it's a complete turd. It can't run half what my onan pro6000e did. One 240 leg was gone. After about 6-7 hours the missing leg started working, but not enough to power any 220v devices. It runs poorly, governor bounces constantly, power is inconsistent. If you tighten the fuel cap it draws vacuum and starves itself of fuel after an hour, so the cap must remain loose. It's the most awful piece of junk. My onan was trouble free for over a decade. I hoped this would be an upgrade, but it's nothing but a disappointment. I was going to try and fix it, but it's not worth my time. I could never depend on it. This was my first and last experience with a Generac product. Absolute junk.

Size your generator using a good electrician. Total electric homes may require a larger unit. A 22kw unit w/ tax $7k-7.5k. Insure you can get propane co. To set and fill minimum 500gal tank. Some will not do this if you have no other gas appliances. 500 gal tank and first set and fill around $1,000. Plumber needs to install flex connector and hard black pipe to generator with connection for gas regulator at a minimum of 5' from unit. You will need a $250 battery for the generator also. Plumber may cost $150-$300. Natural gas if available is best option. To insure warranty is valid, have a qualified Generac tech perform the initial startup of your unit. I purchased a 22kw unit with transfer switch and flex connector included. Propane company said I was the last customer they would set, fill and service because I'm total electric and the revenue off of my usage is not very much.

Generac Generator purchased in May of 2021. Serial number: 000000003008290317 Unit Description: 48KW 4.5L 120/240 1P NG AL In the 4+ years we have had this generator, it has NEVER worked. It has NEVER once come on when we have lost power. It has an error of "low coolant." When a technician comes to service, they find that there is NOT low coolant. Generac has replaced the sensor twice. This has not worked.

Lost a sale due to shipment being lost. I contacted them for a refund and they refused. 60 days from original order. Was told there is a no return policy. Out of our control and they were unwilling to help. Told us to sell to another customer. Will not recommend to any other dealer.

I'm telling you the worst company to deal with. The second generator I had installed for over $12000 only worked for a month. Also, they forgot to plug my freezers in, and I had over $400 where the food go bad, they can care less. They're trying to get more money out of me for additional parts that wasn't in the estimate nor demon quoted to me. The first generator I had installed on Lasted, 5 years in. They stood toes from my basement.

I am not happy with Generac Generator's customer service. I had a generator installed Sept 2025 and in less than 30 days Oct 2025 a promotion came out for a 10 year warranty and Generac would NOT give me the better warranty, as a courtesy. WHY NOT??? I'm a Veteran, always hearing "Thank you for your service" well it sure would have been nice to be shown some thanks! It is not an unreasonable request to receive the better warranty especially since I just got my unit installed. If it was a product that could have been returned and repurchased I definitely would have done that, to get the better warranty. The general manager for Generac SHOULD NOT BE PROUD of the customer service rendered to me. I wish I could have spoken to the general manager about this. Absolutely ridiculous not to change my warranty after such a short period of time, and Really Thank a Veteran!!!

I had a 22kw whole house Generac generator installed Oct/2018. I have 77 hours of use and the engine has blown. I've maintained it yearly as required. The warranty was up Oct/2023 so I'm screwed. Thanks Generac for your POS. Buyer beware,.

Can’t recommend. The 26k generator was installed by a professional company that does HVAC and generators. After the install they told us all the common failures, that wasn’t great. They also told us, “Don’t waste my time with the app. It’s garbage.” The tech said “even Generac tells us don’t use the app.” Well I installed the app anyway and the wifi signal is horribly weak. I installed a $400 outside WiFi extender less than 10 feet from the generator, which brought my signal to a strength of 50% some days, wow; in all fairness the app did tell me the battery was not charging which there was no way of knowing otherwise. After a service call we found out the technician didn’t hook the wires correct at the transfer switch and blamed it on Generac for changing the wiring recently.

I have a 22kw generator, the rotor and stator failed. it was less than three months out of warranty. Low hours on it. Generac would not cover any of the cost for repair. Looks like Generac has the five-year warranty figured out correctly, so the customer has to pay the bill. If you are thinking about Generac, you better take the extended warranty.

Dealers everywhere, none are trained. Delay 1: Doesn't come with battery. Delay 2: gas line not purged. Delay 3: couldn't operate or test without code. Delay 4: no code issued without serial number. Delay 5: dealer didn't have serial number. 100 miles to unit. Delay 6: customer service woke ** and wouldn't guide or help. Just told me no serial # no help. Told me not to call back and Hung up. Beware. These are monopoly attitudes with zero fs given for customers on 10k product.

We purchased a $15,000 Generac backup generator for our home using a contractor from Generac website. Two years later, the generator stopped working so we proceeded to activate the extended warranty that we purchased. The contractor from their website went out of business and could not provide any maintenance records so they denied our claim. Very disappointing since we purchased the extended warranty.

Take this information a 40 year electrical engineer who has repaired Generac machines and have found them to be JUNK! Unreliable, to not meet their own specs and provide no support (parts, schematics or any support) on their machines over 10 years old from manufacturing date. All Generac techs will charge outrageous prices to service or repair so be aware before spending huge money on the garbage machines. I’ve sold, repaired and installed Gens for over 40 years and you can save yourself thousands of dollars by purchasing a top quality machine.

New residential generator in Dec 2024, spent months trying to connect wifi to mobile app with numerous |Generac tech service agents. New generator had old technology 2.4G wifi module. Generac offered to sell me a new generation wifi module ~$250 for my new generator (ugh). Turns out after a service tech visit that the wifi module and wifi ID label were mismatched at the factory! No amount of attempts by me would have fixed the issue, had I purchased the new wifi module their manufacturing defect would have been concealed. There is obviously another customer with the same issue somewhere. Poorest level of Customer satisfaction I have ever encountered. No commitment to Customer satisfaction or ownership of manufacturing defects! Buy another brand!

At first I was very happy and excited about my new generator! The installation staff was very helpful and professional! But as a new client, I had to deal with some « situation « that needed to be explained! I called the head office in Ontario! The guy (owner) said he’d send a technician! Not only he didn’t, but he got upset when I called him back the day after!! He said he’d send wouldn’t send me a technician each time there is a power outage!! He was very impatient!! I had to call the sales man whom I dealt with, and he said he’d send wouldn’t would send someone to look at the situation, but 2 days later, no one has showed up yet!! Maybe it’s too soon for me to review this service, but I am definitely not impressed by the way things have been handled yet!!!

Worst company ever, I spent over 80K cash in Pwrcell equipment with standby generator in Dec of 2022. Still does not work in 2025, never has worked and they just keep sending people out here to do nothing. I was part of the BETA test program and assured by Generac I would be upgraded if anything needs it to ensure the system would work. I live in SW FL and so far during every power outage, this thing just fails and the inverter trips and fails. Major run around, never buy this Pwrcell junk, just get a regular generator and skip the green energy nonsense. Try Briggs and Stratton, better equipment and better warranty.

I have had a simple issue with my 7500exl Generac portable. I have been working to have customer service help direct me to a engineer or technical person to help with my issue. The idle control coil lock nut came loose which vibration caused the screw to push the speed arm causing the engine to rev high & causing the motor to blow out the circuit board. Getting it back running was what I have done but can't find adjustment for that coil arm. I have been trying since Feb 2025, messaging customer service, hoping someone will help with my simple fix. Needless to say you never get the same person to help on my ticket. Every message sent comes back with a new representative giving some worthless information that I've already know about or tried. Again and again sending multiple messages with the same circle back with worthless information like they don't read any information before the last one pertaining to the ticket.

We purchased our 24k Generac a little over a year ago. So our generator is a little over a year old. It worked fine until we had a complete power outage a few months back. The generator fired up and we had power to all appliances except our A/C. This brings me to when we first had the little guy come to our home to go over the size needed and what we wanted powered during an outage. Our major concern was having A/C during any power outage because we live in the heart of Louisiana where the temperatures are always extremely humid. The generator suggested to us by the salesman was our 24k Generac. We questioned him extensively about this generator powering our A/C and he lied and said this generator is what we wanted. There was no mention of added devices such as their (SMM) smart management module.

Never purchase a Generac generator. They have zero oversight and will allow their dealers to steal your deposit. I hired ACH electric out of Lambertville NJ to do my job. Gave him 9k in December of 23. Kept calling every two weeks. Told I’m next in line. Family had a life changing event in March of 2024. Called to cancel job which he had dragged out. Said it would be a few weeks to get me my money back. No harm no foul. Next customer gets the generator. Reach out several more times till he tells me there is a no refund policy. He screwed me out of 9k. Reach out to generac to complain and they tell me it’s out their hands. So generac is ok with their dealers sticking customers for deposits. I’m thinking about suing federal and ACH Electric. Don't buy Generac products.

The best purchase we ever made. We were contacted immediately and service was top quality. We have had numerous power outages and Generac has always come through for us!!! Would recommend this system to anyone.

Installed in 2013. Maintenance of $160 per year. Used for a total of 130 hours since then. This includes recently, when my local utility went down for 3+ days in the heat. The unit ran fine for 15 hours, then quit. I got an emergency repair ($1000+) and it ran another 15 hours and quit. Now it needs about a $1200 repair of the generator system. So there you have it, 130 hours and the electrical l system is worn out. It is useful for some short term convenience, but never again will my family have security in owning a Generac.

Bought a power washer in 2019. Just it's been ran 1 time. Had to replace battery 3 times. Wouldn't recommend it to anyone. They do absolutely nothing to help you. Basically it's junk and Generac keep giving me runaround. Zero help. Wouldn't recommend to anyone.

New generator install by FA Electric. Dropped off and pad mounted one day, installed in one full day after propane hooked up. Competitive pricing. Very knowledgeable and detail-oriented during estimate and install. Checked heat pump specs to make sure generator model was adequate. Inside panel work, transfer box, and load sheds very neat and orderly. Highly recommend.

I have purchased and installed 3 whole house generators in 3 houses. 2 Kohlers and 1 Generac. The Kohlers were very reliable and service was excellent. The Generac is at best mediocre in reliability and local service is terrible. I called for warranty repair. The service tech came to the house, declared nothing wrong and left then they sent me a bill for $200. 2 weeks later the engine failed in the same way. I called and they said they would not fix it unless I agreed to pay for it because I installed the gas regulator too close to the engine. In reviewing the installation guidelines, there is no spec on that. Do not buy Generac!