Hi Jacob,
The Furrion Electric RV Fireplace with Crystals # FF30SC15ABL is an optional safety measure that can shut the fireplace off in the event that the slide out is retracted in to the stored position. It shouldn't affect the functionality of the fireplace when not connected. If you're having issues the display will typically flash a code so that you can fix the issue. Is yours showing any kind of code?
If not the main troubleshooting steps are to remove the unit from the cutout... view full answer...