Just had two powerwall 2s installed. I wasn't home when they did the install. Since adding the gateway to my app, I've noticed that the powerwalls don't charge. I set it to 100% backup and had high solar generation and no energy would go to the powerwalls. Is there something the installers had to do to "activate" charging on the powerwalls? I went through the app troubleshooting, reset everything, solid green light on the powerwalls, ensured all breakers were on, and still won't charge. I'm going to contact my installer tomorrow but if there was an easy fix I'd take care of it myself.