RV electrical problems often stem from faulty transfer switches, loose connections, or blown breakers in the main panel. Most 120V shore power issues can be diagnosed by checking the transfer switch operation, main breaker panel, and power distribution connections systematically.
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.
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
Cracked Dometic AC covers can be temporarily repaired with plastic welding or epoxy, but replacement is recommended for long-term durability. Roof vent caps are typically made of UV-resistant ABS plastic and can be replaced individually for $15-30.
Keep your RV generator running reliably with this comprehensive maintenance and troubleshooting guide for Onan, Generac, and Cummins units.
Guide to RV battery disconnect switches. Covers when to use, what loses power, and best practices for storage and daily use.
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.
Fix your RV refrigerator with this guide covering Dometic, Norcold, and residential fridge issues.
Lippert slide motor parts available from lci1.com, PPL Motorhomes, or RV parts suppliers. Motor only or complete gearbox options. Diagnose whether motor or gears failed to determine best replacement approach.
1990 Tioga E-350 no start - check battery, fuel pump operation, spark in that order. Listen for fuel pump hum with key on. Check inertia switch reset button. Common failures are fuel pump relay and ignition module.
Essential guide for Ford E-Series Class C motorhome chassis covering suspension, maintenance, and common issues.
Coleman Mach heat strips can be added using the Heat-Ready Control Box. This adds electric heat through your AC while keeping furnace independent. Verify AC model compatibility and check electrical capacity - heat strips draw significant amps.
Extra pedestal outlets may share breaker with your 50A - check before heavy use. Electric tankless heaters need more power than 20A outlets provide. Use for small appliances only.
For 50-amp RVs, invest in a quality surge protector like Progressive Industries EMS-HW50C (hardwired) or EMS-PT50X (portable). Hardwired units prevent theft and provide superior protection, while portable units offer flexibility but require security measures.
Air horn compressor blowing fuses immediately usually means seized motor or shorted wiring. Disconnect motor leads and test - if fuse holds with motor disconnected, replace compressor.