I have a 2017 View with a Norcold N3000 frig that works on propane and electric. On the outside of the RV. There are two panels. One is a vent and the other is an access panel with propane heat vents(chrome) The acces panel is rusting. I removed all the screws . 4 screws on panel and 6 on the propane vent. I still cannot remove the panel to repaint. It almost looks like the chrome propane heat vent may be riveted to the two tubes. Does anyone know how to remove the panel. This is the lower panel not the refrigerator vent. Thanks!