I know that is the power distribution panel, but haven't taken it apart to see if the converter was behind it or not, and there is no fan vent on it. Based on other posts, the converter is in various locations depending on the RV/TT. With the heat the converter puts out, I do expect to see a vent. I have checked the fuses and breakers but will try resetting/re-seating them all again to see if that makes a difference before I take things apart.
2010 Zinger ZT29DS
2001 Silverado HD2500 Duramax