RV Electrical & Battery Systems: Complete Guide
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
Master your RV electrical system from house batteries to shore power. Covers 12V DC, 120V AC, inverters, and charging.
Keep your RV generator running reliably with this comprehensive maintenance and troubleshooting guide for Onan, Generac, and Cummins units.
External generators need signal wire to trigger ATS, which is only connected to onboard genset. Solutions include manual bypass switch, simulating the run signal, or universal voltage-sensing ATS.
Built-in Southwire surge guard EMS provides comprehensive protection including surge, voltage monitoring, and fault detection. External unit unnecessary if built-in is full EMS. Verify yours has EMS features not just surge protection.
Your Onan 7000 generator fuel pump is receiving only 9V instead of the required 12V, causing starting issues. This voltage drop is typically caused by corroded connections, faulty control board, or wiring problems in the fuel pump circuit.
Keep your RV comfortable in any weather with this AC, furnace, and heat pump troubleshooting guide.
Ford V10 Fuel Pump Driver Module FPDM on Allegro Bus is on driver side frame rail near fuel tank. Small black box with single connector. Common failure point causing starting or stalling issues.
Check internal DC fuse first - common failure point. Located inside inverter behind front panel. Also verify battery voltage at inverter terminals and check MATE controller cable. No display with fan running often indicates blown DC fuse or control board failure.
For 1800W toaster oven, need 2300W+ running watt generator at 80% capacity. Battery alternative requires 400Ah lithium with 3000W inverter. Most practical: hybrid approach with 200Ah battery for essentials and small generator for cooking.
Connect bus via existing 30A inlet with transfer switch in generator position. Transfer switch must fully isolate from grid. 3000W Victron can provide about 25A continuous. Monitor battery carefully - house loads can drain bank quickly.