Dealing with Signature Solar has had a couple small bumps for me but other then that so far I’m pretty satisfied.
1. there was a bit of a mess up with shipping where the web site over charged me about $375.00 shipping. this issue was resolved. They gave me a credit and I used it to purchase a 12k mini split.
2. The charger isn’t what was advertised and I think mines got a real problem because at times it just won’t turn on. It draws 350w from the generator but nothings going to the batteries. They are working on this still.
For me at least they are trying. Before I ordered from them I tried to work with 3 other solar suppliers. They all just jerked me around and wasted my time. One told me they didn’t have time to even deal with me.
But I to agree there are a few things they can work on between this thread and a couple others. Like where I use to work. LACK OF Communication!
Ditto for me and for the most part happy with most items but this has been my honest experience:
Most issues were conflicting information on various things - examples are incorrect info on the correct battery communication port to use on the Growatt 5000es inverter - spent days trying to make it work with the BMS port when the RS485 was the correct one.
Proper address to use for master battery (one that communicates to inverter) for their different battery types - LiFepower 4 is different than the LL version - this is OK but there is conflicting info in various documentation or their various youtube videos.
LL version uses the RS485 port on the battery to communicate to inverter, LiFepower4 uses battery comm ports to communicate to inverter - this is ok to but I assumed the same ports would be used on the LL batttery because I didn't find specific instructions for the LL version stating to use the RS485 port.
I'm not entirely sure the LL version and Lifepower4 batteries are compatible in regards to BMS communications - so far my experience says they are not. Should have stuck with one version but when you need a battery and the availability is what it is-
The solar edge Autotransformer from them blew circuit breakers from day one - their tech support blamed everything else including my wiring job when I insisted it had an internal short to case from day one - I later proved it by opening the transformer and finding the winding shorted to the back of the case and clearly shows a winding high spot that pushed right through the insulation. I made it work by adding a sheet of silicon rubber to insulate the short. Being a brand new unit I asked for a warranty replacement a couple times - still have not seen that replacement and am still using the faulty one. I see now they sell a different auto transformer.
Tech support has been OK on easy issues - on more difficult issues I have waited days to weeks to get responses and I feel like the tech is learning stuff as we go.
My hunch is some of these issues are new batches of product comes in from china and it's a new revision where things have been changed - however tech documentation on the website is for older versions.
I've spent a bunch of money there - 2-5000es inverters, 38- 395w & 450W panels, 9 - 48v 5.12kwh batteries, 2 - 6 slot battery racks, bunch of other stuff to make it all work..