Trina panels are known to fall over.
In qld and the more tropical areas north thay have had huge problems and had to replace thousands of the things literally. I have bought a lot of panels and set my own 20 Kw system up but the only ones I won't touch are the Trina panels. I believe the new ones are OK but the older ones had a major problem. Wonder the company hasn't gone under really.
Aurora inverters were not great either. They were well enough featured but I have been through 4 of them now. All seem to fail the same way with the tracking going nuts and output up and down several times a second. Mate had them as OEM on his install as well and went through 3 in 5 years Even though he only had a 2 KW system runnning through both trackers on a 3.6 KW outdoor unit mounted in a cool spot of his garage .
None of the older inverters were really much chop. They all pretty much have a 5 Yr life. Depends how you treat them too. I have a Delta in the shed and I have put a heat switch on the thing so a fan blows down the back of the fins and across the front to keep it cool. The heat that comes out of the thing well belies the supposed efficiency that's for sure. People always worry about the warranty on the panels as if it actually matters whether you get 10 years or 20 but forget all about the inverters.
You did do well to find an installer that will stand by their work like this. They are pretty much obligated to replace the whole system now anyway. Unless the panels and or inverter are on the CEC list, you cannot " repair" or upgrade a non compliant system by law. It's a good benefit to you as you will be getting an over all more efficient setup.
Do you know what panels and Inverter you will be getting as replacements? I imagine they will haveing to be doing the racking as well because the earthing requirements and Isolator mounting has also changed compliance wise.
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