Your Coleman Mach AC unit on the 2019 Rockwood Minilite 2509s has developed a short circuit that's drawing power even when the AC is off. The fact that the fuse blows before it's even fully seated indicates a direct short to ground in the AC circuit.
For F53 chassis work near Raleigh, try truck/fleet service centers rather than Ford dealers. Exhaust manifold and AC are standard automotive repairs any qualified shop can handle.
Keep your RV generator running reliably with this comprehensive maintenance and troubleshooting guide for Onan, Generac, and Cummins units.
Reversed heater lines cause hot dash air while driving because coolant constantly flows through heater core. Diagnose by feeling hose temps, fix by swapping hoses or adding shutoff valve.
The ultimate guide to Ford F53 chassis ownership covering everything from routine maintenance to advanced troubleshooting. Learn about common issues, upgrade options, and keep your motorhome running reliably.
RV air conditioners freeze up due to restricted airflow, dirty filters, low refrigerant, or thermostat issues. Turn off the AC, let ice melt completely, then clean or replace the air filter and check for blockages.
Lukewarm water from your RV heater is typically caused by a failing heating element, sediment buildup, or thermostat issues. Most problems can be fixed by replacing the heating element, flushing the tank, or adjusting the thermostat.
Fix your RV refrigerator with this guide covering Dometic, Norcold, and residential fridge issues.
Most RV heat pumps draw 12-16 amps when running, well within your 30-amp service capacity. However, you'll need to manage other electrical loads to avoid tripping breakers when the heat pump cycles on.
You likely have an incompatible control box model. The 9430A751 with dual SIG terminals is designed for true multi-zone systems, while your single-zone setup needs a simpler control box with one SIG terminal.
A Norcold N7LX.3F running more frequently than normal typically indicates cooling efficiency problems. Check door seals, thermostat calibration, and ensure proper ventilation around the cooling unit.
Camplux ovens have a calibration screw inside the temperature knob shaft. Remove knob to access small adjustment screw. Turn slightly to correct temperature offset. Use oven thermometer to verify accuracy.
The Dometic R31 is a solid upgrade from older units like the Wedgewood Vision, with reliable oven performance. The pressure test requires a 0-15 PSI gauge connected to the regulator test port to verify 11" WC gas pressure.
For RV showers, the Symmons Temptrol and Phoenix PF213200 are top mechanical thermostatic mixing valves. Digital models like the Kohler DTV+ require significant electrical modifications that aren't practical for most RV installations.
Motor overheating in a 1997 Ford Rexhall typically stems from thermostat failure, water pump issues, or airflow problems. After flushing the radiator, check the thermostat, inspect for leaks, and verify the cooling fan operation.