Ben, you definitely showed your ability to figure solutions for problems. This is what makes you shine over others in your industry. I am amazed by the complexity of the BMS on the Fortress power wall.
Hello, I’m also facing a similar problem. Mine is reading a code error (F58). Is that the reason why you had to replace the BMS? And if so, where did you find the BMS to purchase?
Hi Alex, I don't remember what the error code was here. I worked with Fortress and they are the ones who determined the issue and provided me with a new BMS. The reason we went that route instead of replacing the entire unit was because of the location of the battery. It was down in a terrible crawl space and it would have been a lot more work to get the battery out of there.
Thank you so much for sharing this. Looked like a terriblel space to be working in. I was caughing just looking at those fiberglass fibers in the air. Could you verify, it looks like the MOSFETs were controlling the relays. Is that right? And I was surprised to see a cheaper looking shunt instead of a brass one. Again, Thank you for sharing.
It was definitely not pleasant down there! The mosfet that burned up appeared to be on a separate board where the shunt and voltage sense leads tie in. Not sure why it smoked.
@@Starkchris this one at least had a poured floor and didn't smell like piss. That other one was something else. We put in a Sol-Ark 12k and 3 Simpliphi 3.8 to replace the Sonnen. It kept failing...
Ben, you definitely showed your ability to figure solutions for problems. This is what makes you shine over others in your industry. I am amazed by the complexity of the BMS on the Fortress power wall.
Oops, let the magic smoke out!
Smells awesome. lol
00:45 Are those big bars connecting to a contactor there?
Yup. Looks like the same one that's in the BMW batteries. There are 2 contactors in series I believe.
Hello, I’m also facing a similar problem. Mine is reading a code error (F58). Is that the reason why you had to replace the BMS? And if so, where did you find the BMS to purchase?
Hi Alex, I don't remember what the error code was here. I worked with Fortress and they are the ones who determined the issue and provided me with a new BMS. The reason we went that route instead of replacing the entire unit was because of the location of the battery. It was down in a terrible crawl space and it would have been a lot more work to get the battery out of there.
Thank you so much for sharing this. Looked like a terriblel space to be working in. I was caughing just looking at those fiberglass fibers in the air. Could you verify, it looks like the MOSFETs were controlling the relays. Is that right? And I was surprised to see a cheaper looking shunt instead of a brass one. Again, Thank you for sharing.
It was definitely not pleasant down there! The mosfet that burned up appeared to be on a separate board where the shunt and voltage sense leads tie in. Not sure why it smoked.
@@benssolarandbattery Look at it this way: at least it wasn't plumbing.
Hello, does the evault have a class T fuse inside of it?
Yes, I believe a 500a, plus a circuit breaker.
Ask rob about the basement crawl space we had to sneak a sonnen into.
Oh, I already pulled that one out. I took the inverter out first though to make it lighter!
@@benssolarandbattery haha. Was that the same crawl space
@@Starkchris this one at least had a poured floor and didn't smell like piss. That other one was something else. We put in a Sol-Ark 12k and 3 Simpliphi 3.8 to replace the Sonnen. It kept failing...
@@benssolarandbattery it failed a week after install they are junk. Have you checked out the blue ions yet.
Not yet. I'm really liking the Simpliphi 3.8 for higher end installs.