The RC7-GS inverter charger can properly charge 105Ah AGM batteries using the 125Ah setting, as AGM charging is voltage-based, not capacity-dependent. Generator start issues typically stem from wiring problems or incorrect DIP switch configurations.
Compare scan tools for Cummins 6.7 diesel engines in RVs. Covers professional and DIY options for diagnostics, codes, and DPF regeneration.
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
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.
Guide to RV wheel alignment including warning signs, finding qualified shops, service frequency, and what to expect during alignment.
A $6,400 DPF replacement quote is high but typical for dealers. Your 2022 Cummins B6.7 may still have emissions warranty coverage for 5 years/100k miles. Consider professional DPF cleaning ($800-1,500) or authorized Cummins dealers before replacement.
Your generator likely uses the chassis battery and may have a weak connection or failing starting battery. The main engine alternator charges the chassis battery when running, explaining why the generator starts after running the engine.
First oil analysis without history is difficult to interpret. Change oil, run 2-3K miles, sample again. Compare YOUR samples to establish trend. Metals may stabilize with fresh oil.
DEF low pressure with leak needs prompt attention. Check filter housing, lines, and connections for the leak source. System will derate engine if not repaired. Filter replacement is common fix.
The Onan 5500 can be tuned up with quality aftermarket parts when OEM parts are unavailable. Use NGK 3432 spark plugs, Wix 57358 oil filter (not 57398), and zinc-containing oils like Rotella T6 for optimal performance.
For exhaust manifold gasket replacement with broken studs on your 2003 Fleetwood Southwind in Waukesha, WI, contact specialized RV service centers or heavy-duty truck repair shops. This complex job typically requires professional expertise when head removal is needed.
For Cummins 6.7 ISB, use AGM Group 31 batteries with 900+ CCA. Duracell (East Penn) and NAPA Legend are both excellent choices with good warranty. Replace both batteries together. AGM handles diesel starting demands better than flooded.
Code 14 is overspeed but your real issue is carburetor gummed from sitting. Choke mechanism needs cleaning to operate automatically. Clean carburetor thoroughly - jets and choke linkage. Use fresh fuel and add stabilizer to prevent future issues.
Year of storage without stabilizer causes carburetor varnish. Carburetor needs thorough cleaning or rebuild - soaking, jet cleaning, new gaskets. Running rough and stalling under load are classic symptoms of blocked jets from old fuel residue.