Replace door awning motor cap by identifying awning brand and ordering from RV parts supplier or manufacturer. Protect motor end from moisture until replacement arrives. Most caps snap or screw on.
Thor Ace has both macerator and gravity dump. Look for valves in the wet bay that direct flow to one or the other. Close the valve to the outlet you are not using. Some setups have both connected - gravity works by default, macerator works when pump is on.
Top Presto-Fit alternatives: Camco RhinoFLEX (best value), Valterra Dominator (heavy duty), Lippert Waste Master (premium cam-lock). Look for 20+ mil thickness, quality fittings, and cold-weather flexibility. Avoid ultra-cheap thin-wall hoses.
Tight sewer connections from oversized flanges. Apply silicone lubricant, lightly sand the bayonet ears with fine sandpaper, or switch to slip-fit style connectors for easier use.
Sewer hose without fittings is rare - buy cheap complete kit and swap fittings, or try industrial bulk hose. Consider repairing leak with hose clamp or sewer hose repair tape.
LED clearance lights turning off when headlights activate is a ground issue. LEDs draw little current so poor grounds cause backfeed. Fix by improving ground connections.