Repairing & Fixing The POWER-ONE AURORA SOLAR PV INVERTER! 

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Our inverter stopped working after 6+ years were quoted £1200 for replacement so searches the net for answers and found your RU-vid video we followed your instructions and low and behold exactly the same issue all now fixed and working fine we are very grateful for your video's saved us a lot of money and only took us about an hour to do.

Helpful videos, thanks. Having now dealt with our E031, I can feed back a few things to make this job easier. First is that disconnecting the grid cable at the PCB will make handling the PCB thereafter much easier. Secondly, it is much easier to lay the unit on it's front when removing the backplate and mounting brackets. Then, without repositioning the unit, you can pivot the inner metal backplate up to remove the ribbon cable, and then keep pivoting it over to almost 180 degrees, and you will find that the inner backplate will sit nicely in this position making it really easy to remove the remaining cables, and then the PCB. Finally, if we consider that the output, or product of this unit is is mains power, then it is logical that it must receive it's own operating power from elsewhere. Note that part of the start up process is to check for the presence of the grid, and this check would not be possible (or would be redundant) if the operating power to do so was coming from the grid.

Thanks so much for the video. Failed after 6 years was quoted $1200 Australian to replace. Fixed it with your help for $30.

Many thanks for making this video. My Aurora power one inverter failed after ten years in exactly the way you describe. I ordered the four relays via eBay from a very helpful company in Axminster, and they arrived within 24 hours. My inverter Is now repaired, and back to exporting to the grid. The only extra thing I had to do was reset the inverter clock, also described elsewhere on RU-vid. Thanks again guys

I just repaired my Aurora thanks to you and this video! Thanks for sharing this precious knowledge! Warm regards!

Mine's also gone down with this fault - I'll give it a try. Thanks for mentioning it needs to be reconnected - I would have been worried when nothing happened.

Thank you. Changed 3 relays which had obvious issues with the solder joints Added extra wiring as you suggested Connected the two solar strings and ac. No more E031 error codes and generating electricity as before. Only difficulty was removing the relays after desoldering. One coil connection had not been fully desoldered and the fine track lifted as I was jiggling it about. Fortunately the track did not break . Just want others to be aware to use a good solder sucker and solder braid Once again many thanks

The failure is not the PCB, but the relay contacts going high resistance which then is causing the overheating.

Well done!

Hi, Thanks for the reference, my series of videos all come from just wanting to know because this is a very common problem. Put it back in the loft, there's your problem, heat. I have a video about extending inverter life, cheers

Hi Gents. Fantastic video. Thanks for taking the time to make it. Really helpful for a novice like me. My Aurora inverter has just shown the E031 error after 11 years of trouble free use. Opened it up and only one of my relays has overheated. So bad though that it burnt off the green solder mask or about 1cm at one pin. What size wire did you use for the jumpers?

I have posted on one of Andy's videos, that Hongfa HF165FD/12-HY1TF relays are the same spec... and are available from Rapidonline for £1.81 Inc VAT each.

This is really useful - thank you. Will there be any issues having the Aurora reset after such jobs - will it affect built-in readings or info which is required for FITs, for example? Thanks.

Great tutorial. Now the goal posts have changed on renewable, can you recommend a battery storage solution to tie into this at all please, keep up the great work, Thanks.

Hi mate Great video. Mines gone too. I have ordered relays. Soldering iron and tools needed. Only thing I haven’t got is the jump wire. Do you think it is entirely necessary to jump?also a tad confused on positioning on cable on both sides of pcb

Do you have the total wattage, or amperage? I have an issue with the same model. Thanks for posting this gents

nice if you can list relay part and where you got it

Hello, 3000 watt solartronics full sinus inverter fault light is on. When the inverter is turned on, a relay tripping sound is heard, then the fault light is on, what do you think could be the problem?

Hi, what can i do about error e034?

Hello, I have the same inverter that is ten years old that no longer works I have no faults the solar panels supply dc 230 volts but I have no watts coming out it lights up in the morning and goes out in the morning evening without production do you have an idea of ​​the breakdown, thank you. I'm French sorry for the translation google.

Do you have the Service Code to get in deeper menu? i have the aurora pvi 3.0

These relays are two pairs in series doing the grid disconnect, one pair on the Live side the other on the Neutral. One side of each pair of coils is commoned, the other side are driven by two different parts of the control circuits. Not sure why they designed it that way. Has anyone been able to find a schematic for these units? I've looked for a circuit diagram but not found one online

can you change the hz. from 50 to 60 hz. in this incerter?????

hi .. my power-one say E011 error ... what can i do?

Rather scary picking up the whole PCB by a relay that is almost completely unsoldered. Good way to rip a track off the PCB. Also your inverter is not going to turn on without DC present from the solar panels!