We have had 2 systems installed with the primo inverters. our last home that had13kw system(40panels) 2 x 5kw inverters as the zone we were in only allowed 5kw back into the grid, so 1 for feed in & other for usage. Really had no issues with either. i found them easy to navigate as they would lose connection but that was where we lived (rural).… Read more
We did have issues with online updates but again i think that was Telstra's reception Since moving we have had another install done with a Fronius primo8kw gen24. This is a 11kw system (27 panels) with a 12kw BYD battery. At this stage no issues with is inverter either. i check several times a day just see input into battery as we are in the ranges so we do get fogged in. 3 mths on havent drawn from the grid as the battery copes with our usage. Summer will be different for the r/c air but we have a fire place for winter. My opinion is they are a good inverter with no issues over last 5 yrs.
Our Fronius system was ordered in December, it is still not up and running. The installers are coming again on Monday to try to get Fronius support to assist with the software problem. So disappointing, I didn't want Chinese and have wasted all the summer sun. Think twice about Fronius. Show details
Reviews with attachments
Electricity conversion is LOUD! – The Fronius Primo is primo in price, it's quality is low, it's feature list is low, it's monitoring app requires payment and isn't great. But above all it's extremely loud, about 42db when running. To put that in perspective it's like listening to lawn mower. If you plan on being anywhere near it you will have a constant very annoying racket. Stay away and buy something else.
I have two houses with identical systems 2 Primo GEN24 5.0 Plus On both houses. good when they work, but for example, to day I can see how much power coming from the sun, but it will not tell me how much powers in the batteries, how much charge in going to the batteries. And how much power the house is using. This been going on for the last eight… Read more
months. And they keep saying, oh, we're going to do an update, update, update. That's it. Not worth buying. I spoke to a Different. company. today to give me a quote. to replace the inverters to a different brand that works.
freezing up and losing internet regularly – I've been using the Primo GEN24 5.0 for about six months now. It's alright for the most part, but it keeps freezing up and losing its internet connection. Because of this, the app can't show me how much solar energy it's generating. The only workaround they've given me is to manually restart the inverter every month, which seems pretty nuts!. I've… Read more
reached out to their support team multiple times about this, but they haven't really looked into it whether this is a system bug or what . Now, they're not even responding to my support ticket. Makes me question how they're meeting their SLA to paying customers like me. Poor product poor service, I don’t recommend this product.
If you want the best, this is it, fact! – After many years of dealing with faulty solar panels, fault inverters, faulty installers and sooner or later the law of averages kicks in and I cracked it. i.e understanding solar. Never the less over a decade of learning on the run with the early technology, it has help enormously. After the previous problems I have had, family members in Far… Read more · 1
North Qld asked for help to buy and have installed a large system for them; especially due to air conditioner usage. After selecting 1 out of 4 Solar Installers, that actually made sense when I spoke to them, I went up there and met with them. I decided the best install for my adult family would be a 6.6Kw system with a Sungrow 5Kw inverter. I classed that (with a bit of investigative help) as a well above middle of the road system. It has been on their roof now for a year and a half; not a problem. A "Pro" install with workmen who are actually on their employers books and not just subbies; that's one of the biggest questions to ask. I've been in the building game 50 years myself. Well; we decided to sell up a year ago, move up there and I used the same company to price a system for me, but this time I wanted ALL the good stuff. I put on a 6.6Kw of 'LG' panels linked through a 'FRONIUS PRIMO' 5Kw inverter. This inverter is under rated and can pump out well over the 5Kw but in a year we have not had a power bill. It puts more back into the grid than we use, even with 6 split system air conds and a pool pump. I bought the 5 year care package as well and just had the panels cleaned and the system checked as part of the deal, this is annual event for 5 years . I calculated that I didn't need the battery pack if I got the system right; I love it when a plan comes together.
Latest follow-ups
Hi there, I had this inverter for 7 years and now failed under warranty. I had real hell dealing with the Fronious tech support and also my installer to even get to start assessing the inverter issues. On the 7th year Fronius will only cover parts… Read more
and they sent me refurbished inverter which failed again in 2 weeks. I have requested several times to replace to a new one and they again replaced to a refurbished one which is working but not even generating a quarter of solar energy and not exporting to energy company. The tech support said I need to get the panels checked for which my installer is coming after one month to just investigate. I have already paid $300 a month now for 4 months and who will pay me this back. I request every one not to go with thi s lrkducyvas their warranty terms are deceiving customers and never believe your installers they only do the job at he start and later on fir any issues it’s hell to deal with.
Follow-up · It’s been terrible experience as my solar power is not generating anything and my electricity bill is sky rocketing.I would never recommend this product to anyone and my solar installer had been a hell to deal with as it’s been 6 months now and he dint resolve the issue.
Positive reviews
inverter a failure – The Fronius Primo inverter failed after 5 years and 4 months and is only recognizing the output from one string of solar panels. The installer's electricians have confirmed that solar power is going from both solar arrays but only half the power is going from the inverter to my meter. The electricians , rather than try to find the problem wrote… Read more
off the inverter and recommended a new one. I had a certificate for an extension of the warranty but after waiting 5 months to get a new inverter or at least a competent electrician to investigate the problem I have had no response from either Fronius or the installer, Smart Energy Group of Byron Bay. I have other non Fronius solar inverters that have been operating satisfactorily for more than 12 years and am considering installing batteries but wont be using either Fronius or Smart Energy group.
Best inverter in the market – They have a awesome products and the best support. They even have an office in Victoria and WA which gives me confidence in the brand for after sales and warranty. Fronius Primo inverter is loaded with features (load management, IO control, Modbus control, API, Push service). I love the user interface of the app. For $2.75 a month Solar.web… Read more
premium unlocks additional features such as compatibility with Amazon Alexa, infinite history data, PV production forecast for 2 days, custom reports and a lot more. Fronius Ohmpilot for hot water systems and Fronius Wattpilot for EV charging makes it a future proof inverter.
We’ve got 2 . No issues – We’ve had 2 Fronius inverters in our house for about 2 years now. We’ve got 44 panels on the roof and they provide 10kwh. I’ve read a few of the other reviews which indicate problems but ours have been great. Would buy again. Show details
Negative reviews
We have a Fronius inverter as part of our house’s solar. It is 4 years old. It had regularly had error 517 occurring since Feb 2024 which we continually needed to reset when we notice it. This summer, during our peak usage, the inverter failed to work on most days due to this error and it took several weeks for our electrician to obtain a part… Read more
under warranty to fix. The additional cost of electricity during the last two months has cost us over $500. When we asked if there was any offer of compensation the simply laughed and told us to read the fine print. I would not recommend if you are considering solar to use a Fronius inverter.
Good inverters, but their web monitoring is beyond useless. I've been locked out of my account for months, and the process of having it reset is proving laborious and absurdly inefficient. Show details
Not helpful app. No ability to access settings. No ability to set cost parameters (aka tariffs). Apparently they want you to sign up to "Premium Service" at a cost of course. So you spend $6500+ but have to pay another $50 to get functionality. And don't try and get assistance or help. That is not forthcoming. I would not commit to them again. Show details
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Recent reviews
Service support is very poor to both the customer and our electrician. Our battery installation has stalled because we cannot get a software upgrade in Kangaroo Valley NSW. Show details
Good product let down by tech support. If you hate your job that much do something else. Your meant to be here to help. Speak clearly and be interested in the service person trying to help you. Your don’t give 2 f#cks attitude sux for all off us.
Fronius seem to be a good product let down by a poor service network. The manufacturer tech are great but when you want the installer, or because they fail to respond or a recommended Fronius installer don’t bother. Waste of space. Take forever. They all want the money from the initial install but not the follow up. Stay away from Natural Solar and Shoalhaven Solar. Show details
Lousy website – Absolute crap website. Always down for days at a time. I like to track my usage but the four day+- lag makes that impossible. I had to have the inverter replaced on warranty after 2 years. They were good about that. I had to threaten the installer with legal action to get the process going Show details
Very poor support if something goes wrong – Poor tech support and customer service if something goes wrong. I can’t count how many hours I have spent on hold trying to get the monitoring up and working again. In the end the fix is for me to spend almost $400 for there labour to replace the broken part supplied under warranty. This was sold to me as a premium upgrade. My experience is anything but premium. Show details
Fronius inverter – Having trouble with solar wed reading. Fronius never answer email. Even call. Fell on death ears. For the money you pay. I would recommend sungrow . I have both systems and they are on par with each other. Sungrow is user-friendly app. And no problem on call centre Show details
Would not recommend the Fronius Primo – The Fronius Primo is a good unit when it works. Have had it for approximately 18 months and the efficiency has dropped significantly. In summer we have been averaging 55-60% of power output expectation, and on a clear blue sky day the inverter reaches peak output and then drops off. Our solar installer has verified the unit is faulty. Fronius have… Read more
not been helpful at all and will not acknowledge the fault. I estimate having lost hundreds of $ in FIT.
After sales service and support is lacking to say the least, and they do not respond in a timely manner.
Good product when and if it is working - don't expect good service – The inverter started to malfunction in early November 2023. The unit is unstable and keeps resetting several times a day. Some software issue with internal components not communicating with each other. Now mid December and no closer to a resolution. The original installer does not seem to be able to motivate Frionus Tech support to take the issue… Read more
seriously. They started by denying there was a problem with the inverter, even suggesting that my home WIFI network was dropping out and somehow contributing to the problem ? Newsflash - Solar panels and inverters were around long before the NBN, how did they function then ? Finally, Frionus grudgingly agreed to supply some replacement components that were duly fitted, but did not fix the problem. We then went through another cycle of denial before yet more parts were supposedly shipped the week before Christmas - Woeful !
The level of support from Frionus is very unsatisfactory. Also the Solarweb app is clunky, does not provide real time information - not user friendly at all. No one seems to be able to explain why the app started to malfunction at the same time the inverter did. Is it intentional, so I cannot see the inverter malfunctioning in real time, and I have to run outside several times a day to see if the thing is producing anything ? Just another unanswered question.......
OK, later update. We were promised a fix before Christmas 2023, which course did not happen. Now in early January 2024 everyone seems to be enjoying a holiday and we are left with a malfunctioning inverter, and nowhere to turn to. Frionus are you really reading these reviews ? There is an unhappy customer here, what are you doing about it ?
Frionus get a below average mark for problem solving, and a nil (zero) mark for communication. Here you go Frionus, an opportunity for improvement, talk to your customers and keep them in the loop....... Or do you believe that if you ignore a problem long enough it will go away?
What a farce, I just spent half an hour on the phone to Frionus, only to speak to a computer who thanked me for my patience.......... I don't think the level of service could be any more woeful.
OK Just to wrap this up.... Now mid January 2024. A replacement unit was fitted a few days ago, and the problem seems to have gone away.
Customer service is below expected standard – I had this product installed a few months ago.It is too early to say if it is a good product (seems good so far) but the app has stopped working a few times and I have needed to ring Fronius to assist me with restarting it . My issue is very "poor customer service".Just be aware if you ring the customer support… Read more
line to expect a long wait on the phone.In my case 40 + & 20 + minute waits have been my experience (if they pick up).After poor results re phoning I have emailed them with my query and yet no email replies.(umm) Most of my queries are simple ones and luckily as a last resort I have rung the installer (I rate him 10/10) and he has fixed/answered my query within seconds/minutes.My goal is to learn to troubleshoot so in the future I can fix a problem myself (if it is simple) as sadly dealing with customer service has very extremely disappointing.
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App doesn’t work – The inverter is great but their ap is woeful. Didn’t work for days so you have to go out to the inverter and find out it’s working well. Then works for a few days then nothing!
The app is a Scam – The app worked for a couple weeks then stopped. No support, they don’t give a damn. Shoalhaven solar from Berry, no call back support. Go figure. Show details
absolute rubbish – I bought this system because it was highly regarded by most tech web sites however, I believe the truth maybe that Fronius spend more $ on the tech web sites than they do on their product. just clicked on the tech support and surprise gors to page that cant be found. save your self some grief use another inverter Show details
Awful app – The app is not user friendly at all. Considering Fronius’s reputation for quality products, may i suggest they invest in some quality IT for their app. It simply is rubbish. Show details
Can’t get any data – Cannot access or setup this system to get any information about how or even if it is working correctly. Terrible app and website for trying to work out how to add a new system or get help. Website constantly just wanting to add cookies and get you to default agree to unnecessary cookies. Show details
Works fine but I object to having to pay for data – Fromius Primo inverter came with the house was fitted 2 years ago by previous owner and appears to have worked fine since. I hate that Fronius want to charge me for data from the inverter about my electricity usage. It is not a lot - $40 per year but the principle. I much prefer my Solar Edge system which I added. Much better app and monitoring which is free. Show details
Shocking unit – 4 service call outs in 5 years, would not recommend any Fronius products after this. Unit just keeps locking up during hot days, have had different "experts" diagnose and "fix" the issue and then exactly the same issue over and over. Now trying to get entire system replaced.
Good inverter but expect spam email – No issue with inverter but continue to receive extended warranty/offer etc. email from the manufacturer despite requesting them to remove my email. No option to unsubscribe. App is not that great.
Great Inverter Useless Software and App – After many hours of frustrating app set up (kept getting locked up and not progressing), finally got it working only to have it go off-line. Not easy to set up the app and get it working then it goes off-line. Absolute rubbish software not intuitive at all and when I got it working the app did not tell me all I wanted to know.
Terrible mobile app – The whole reason I bought this system was because it was ment to be smart. It was a nightmare to connect to and just keeps crashing. All the information isn't there even though I'm a premium member. Absolute 90s trash software
App is offline more than 50% of the time – I am annoyed that when I purchased this inverter I was told that I could access it anytime via an app and/or logging into their website, yet it appears to be offline 60-70% of the time. When I complained to Fronius they sent a generic reply directing me to their FAQ section of their website.
Excellent Inverter - no problems – We had a Fronius Primo inverter installed as part of a 6.6kW Solar System in Melbourne in July this year. The installer recommended hard wiring the Inverter to our Data Router and we've had no issues with the connectivity or the App. Both the Desktop and the Mobile versions of the App seem to provide all of the performance information clearly.… Read more
There's only minimal fan noise. The installer also placed a stainless steel shield above the Inverter to block direct sunlight on the unit. We did have to clear a bird nest that formed last month in between this shield and the top of the inverter as it was blocking the top air vents and probably would have caused the unit to overheat. We have since placed bird netting over the shield and inverter.
One of the worst inverters – Very bad inverters Very poor service Never take fronius inverters .
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Have continued to deal with fronius support who acknowledge fault but refuse to rectify the unit.