
Generac Power Systems
Generac Power Systems Overview
The aggregated data is based on reviews and questionnaires provided by PissedConsumer.com users.
Generac Power Systems has 1.6 star rating based on 190 customer reviews. Consumers are mostly dissatisfied.
100% of users would likely recommend Generac Power Systems to a friend or colleague.
- Rating Distribution
Pros: Generator itself, Will run whole house, Refusal to stand behind product.
Cons: Customer service, Product quality, Company does not care about customers.
The aggregated data is based on reviews and questionnaires provided by PissedConsumer.com users.
Generac Power Systems has 1.6 star rating based on 190 customer reviews. Consumers are mostly dissatisfied.
100% of users would likely recommend Generac Power Systems to a friend or colleague.
- Rating Distribution
Pros: Generator itself, Will run whole house, Refusal to stand behind product.
Cons: Customer service, Product quality, Company does not care about customers.Recent recommendations regarding this business are as follows: "Shop different manufacturers", "There are better options", "It’s a good feeling to know that you have a back up When times are tough. Knowing that you do not have to go and Manually start the unit in the dark and During foul.", "Generac: junk and crooks. DO NOT BUY!", "DO NOT BUY A GENERAC GENERATOR!".
Most users want Generac Power Systems to offer a solution to their issues.
Review authors value the most Turnaround Time. Consumers are not pleased with Customer service and Reliability. The price level of this organization is high according to consumer reviews.
Media from reviews











































Brand new Generac 14K will not charge the battery
I (a retired electrician) installed a 14k Generac early this month for my brother in law.(Feb 2024) We had the unit on a concrete cement pad that is 12 above the soil. We have an 1 1/4 NG feed to the unit for plenty of volume. We are in Chicago and code requires conduit between the ATS (auto transfer switch) This is a perfect install.
The install was completed. The unit was started and ran well. The weekly exercise time worked to the minute. All was well..
Then,
The unit would not start for its weekly exercise a week later, the battery read 11.79 VDC. I replaced this brand new 26R battery with a new 26R battery on 2-21-2024. New battery volts were 12.49 VDC. Started unit and reprogrammed. Today 2-26-024 the unit displays battery low. Call customer service 888-436-****. A very nice customer service lady tried her best to help while I used my volt meter to measure T-1 voltage. 120 VAC at the T-1 ATS terminal and 120 VAC at the unit. I was to told replace the blue T-1 wire between the ATS and generator because the T-1 wire might be nicked. After I explained several or more times that in Chicago all wires are in metal conduit installed by me and reading the needed voltage at T-1 unit replacing the blue T-1 wire was not required.
I tried to explain that there is a neutral termination point just below the T-1 termination point and do I need to jumper a neutral to it (maybe thats the neutral half of the T-1 charging circuit. She just didnt understand.
I asked to talk with the actual tech support team member and was told they only talk to Generac service people
I complained however NO SUCCESS. Unit not charging the battery.
So Im sent packing, told to call a Generac service provider and they will determine whether or not the problem is installer or unit..
So heres the worst.. two Generac service companies WILL NOT make a service call because my brother in law didnt purchase and use them to install it.
I left a voicemail message at the 3rd service company and the 4th took a message claiming someone will call back.
Also.
I want all to know that the lady was polite and tried to resolve the issue.
This is a Generac problem and Ill never recommend generac products again to anyone until this issue is resolved by generac.
Im on my 2nd generac unit at my house in 21 years upgraded several years to a larger unit because of the persistent power outages. No issues
What the *** went wrong at Generac ?
- Had two so far
- No tech support
Preferred solution: The battery charging correctly
User's recommendation: Shop different manufacturers
This review is written by an individual who has purchased the reviewed product/service and/or confirms being a paying customer of this company. Check our FAQ
Verified Buyer |Installation wrapped up on 2/08/2024
User's recommendation: It’s a good feeling to know that you have a back up When times are tough. Knowing that you do not have to go and Manually start the unit in the dark and During foul.
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerVery disappointed with the Generac warranty
- Warranty is apparently just hype
Preferred solution: The amount I paid the servicer, $175.
User's recommendation: There are better options
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Generac is junk, and their people are thieves
danI have reviewed this company previously, but want to add one final thing. These white collar crooks sold me a $10,000 generator that was defective, and that cost me $7,000 to fix and re-install. And then these arrogant bastards left me with holding the entire bag.
I am going to fight back and print up 2,000 bumper stickers that tell the entire gulf coast that GENERAC IS JUNK. And then I'm going to plaster them all over the gulf coast, from Destin to Houston.
What a bunch of crooks these arrogant *** are.
Lots of choices as to what generator to buy. Consider yourself warned that if you buy a Generac that is defective, you are royally screwed!!
User's recommendation: Generac: junk and crooks. DO NOT BUY!!!!
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Inverter error
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Generac wins The Triple Crown: deceitful, unethical and evil.
When *** freezes over.
That generator turned out to be very defective right out of the box, and Generac admitted it to me.
And here I am now, in the middle of hurricane season, with the exact same defective Generac generator, and all Generac has done is for me is lie to me and ignore me. Day after day after day after month after month after month after month.
Once they have your money, their arrogance is simply intentional, stunning and just so insidious.
Did I say intentional? Trust me when I say that. I have lived nearly 250 days of it.
I have spoken to 5 authorized Generac dealers and they have all told me that Generac knows that they have a serious quality problem, but because they sell so many generators at such high profit margins that they don't have to do anything about it. In fact, they have told me, that Generac's strategy is to frustrate their customers until they just surrender and go away.
Last thing, and here is all that you should need to know about Generac generators.
All 5 of these Generac dealers told me that they will no longer sell a Generac generator to their customers.
As one of them told me, "I love money a lot, but not enough to knowingly screw someone by selling them any of the crap that Generac is putting out".
Any questions? These people should be in jail.
User's recommendation: DO NOT BUY A GENERAC GENERATOR!!!!!!!
This review is written by an individual who has purchased the reviewed product/service and/or confirms being a paying customer of this company. Check our FAQ
Verified Buyer |This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerHorribly corrupt company
Generac has chosen to not extend any remunerations whatsoever in response to this debacle that is still going on after 6 years. They will not extend the warranty and will not even fathom the idea of giving us an offering for all of the days and weeks we went without a...
- Bought original Generac Synergy whole house generator in 2016. Total cost of all materials and labor $12K, which included a 500 gallon propane tank, and 120+ foot gas line.
- The unit began throwing an error code 1062 whenever we lost power, and that code could not be cleared so the generator could be run again until the grid power came back on. Kind of defeats the purpose of having a generator, wouldn't you say? It turns out that this is a fatal design flaw with the Synergy model, but Generac refuses to recognize that.
- Generac told our service dealer of the time which parts to try replacing, but told him that he would have to pay for the replacement parts out of pocket if it didn't fix the issue. Needless to say, no parts got replaced, and we were forced to continue with the error and loss of use of our generator over the course of 5 years.
- Then our service guy had health issues and had to retire, and then covid hit. We were left with no service support.
- When I called Generac to finally get this straightened out, they told us we would have to pay to have a new Generac service company come out and run a "diagnosis" on it. When I clarified why that wasn't going to happen, I got passed along to no less than four different customer support reps before getting one who wanted to handle the case.
- Generac paid more money to swap out various parts in the Synergy than it would have cost to simply replace it. So of course they wasted yet more money.
- They finally agreed to replace our Synergy with a "new" Guardian model.
- Unit was installed and immediately failed with low oil pressure.
- Instead of sending us another replacement, they insisted on making us wait for them to order and have installed a brand new engine. So now we were with NO generator instead of the previous one that we could sometimes piecemeal during an outage.
- The process of swapping in the new motor was NOT trivial. After seeing the complexity of it, I would have preferred yet another whole new generator.
- Fast forward to Christmas Eve day. We had lost power the day before, and the generator kicked in, and we felt like we could finally enjoy some piece of mind from our big investment. I want out to check on it and came to find ALL of the motor oil drained out into the cabinet of the unit. The dipstick read ZERO oil in the block. The oil pressure gauge did NOT shut off the engine, so it ran for who knows how long with little to no oil in it.
- Now the rep from Generac who was on our case, has bailed on us and kicked the can down to the next rep. Why? Because she knows that she will be listed as the primary contact for my lawyers to reach out to her with a lawsuit.
This company is a TOTAL POS. I can't stress how sorry I am for falling for their *** and buying their garbage. They don't stand behind their products or their customers. Generac SUCKS!!
Here are photos of the oil issue and what it looked like to replace the engine in this thing. What could possibly go wrong, right? I'm right on the edge of filing a lawsuit. Pretty sure it's going to go that way. Six plus *** years of trying to deal with these *** just to GET what I *** paid for!!!
- Do not care about customers at all
Preferred solution: Full refund
User's recommendation: Steer clear of Generac. They are totally corrupt and disfunctional.
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Unreliable and useless customer service
We were stranded without our power and our thousand of dollars Genercrap died. We hand bailed water out of our sump pump at 4AM until he could get another generator hooked up.
Just to plug in the sump pump. We get it maintained as scheduled by authorized technicians and it cost $700 this last year with now an estimated $956 to fix this new issue. I had to take work off today because I cant rely on the Genercrap to work, dont want a flooded basement. Cusmoer service is useless and told us to put an new battery in it, we did, thats 2 new batteries in less than a year theres nothing they will do since its a few months out of warranty.
So you spend thousands, yearly maintenance fees, repair costs and it still doesnt work.
About 200 hours on it and the service guy said its like new still. Something that costs that much should be reliable and last more than 5 years.
User's recommendation: Unreliable with horrible customer service
Predator Company Allowing Poor Electrical Practices
- Poor customer service and quality control
Preferred solution: Full refund
User's recommendation: Run away. Buy something else
Pleased with product
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerLack of accessible support, poor quality of parts, slow response times
Preferred solution: RMA one of my two faulty Inverters. Restore functionality and support to PWRView Dashboard online.
User's recommendation: Stay away from Generac Solar Products. Far Away!
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerBAD PRODUCT
Still has not resolved. Generac hired Sunnova Energy for repair May,2022.
As of Feb 16th.2024 Sunnova has not finished repair. Solar panels as of this date do not operate.
I received another message from Generac stating they are waiting on parts to be sent to Sunova for repair. Generac warranty 25 years.
I can't get problem solved.
Solar panels and battery backup system now is going on eight months without operation. All sales should halt until problems are resolved with products that already having problems.
Still waiting on repair, Generac states waiting for Sunova Inc. Sunova states waiting on Generac for repair parts.
- Takes for ever for repairs of warranty systems
Preferred solution: Full refund
User's recommendation: Check with local utillty company to be advised on which solar company is rated in top
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Unreliable junk
User's recommendation: Don’t buy generac
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerGenerator would not start when needed.
Have heard absolutely nothing from GENERAC nor installer! I did find Tennessee Home Power in my home town that gave the answer.
It seems natural gas line can freeze up at low temperature.
They advise their customers to pour hot water on the gas line to thaw it out and use pipe insulation as a preventive. I now have a new dealer and service provider!
- Good advertising and good salesman
- Did not work when needed
Preferred solution: Apology
User's recommendation: Do not buy Generac!
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerFailed generator with 15 hours
Generator failed 3 minutes after power went it from Ian. Immediately called service and got no answer.
Kept calling everyday until someone answered. Was told someone would be out to look. No one came for 5 days, was told manufacturer defect part would be overnighted and repaired next day. Three days later told part wont arrive until 10/11?
LTL instead of overnight? No offer of a loaner, no attempt to reach out to neighboring dealer, no communication from dealer or corporate.
- Talk a good story
- Do not walk the talk
Preferred solution: Apology
User's recommendation: Don’t buy

This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Biggest piece of crap
- Piece of junk
Preferred solution: replacement unit
User's recommendation: DO NOT PURCHASE A GENERAC HOME STANDBY GENERATOR
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