House Power Problem

All the stuff that you listed as working are 120v appliances. This leads me to believe it is in the 12 V side. Start at the battery and check the voltage. Usually there will be a large fuse before the inverter and the rest of the house wiring. If there’s power past that then look for the battery disconnect relay. Keep checking until you find where the power is no longer passing. Another quick thing you can do is press the emergency start switch up in the dashboard. Make sure everything is off except a few lights. Depending on where that relay is wired may tell you where the problem is.