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.
Protect your RV from freeze damage with this comprehensive winterization and de-winterization guide.
When your Dometic RV air conditioner runs but doesn't blow cold air, the most common causes are dirty air filters, blocked condenser coils, low refrigerant, or faulty capacitors. Start with cleaning filters and coils before checking electrical components.
Fix your RV refrigerator with this guide covering Dometic, Norcold, and residential fridge issues.
Yes, run RV antifreeze through both appliances. Pour antifreeze into dishwasher sump and run briefly. For washer, draw antifreeze through inlet hoses via short rinse cycle. Use only non-toxic RV/marine antifreeze, never automotive.
When your RV water pump runs constantly but produces no water after de-winterizing, you likely have air in the lines or a priming issue. Start by checking all faucets are closed, then prime the pump by opening the closest faucet to the pump until water flows steadily.
RV toilet dump valves stick after winterization due to lack of moisture and seal drying. Apply water-based lubricant or silicone spray to the valve mechanism and seals before and after winterizing to prevent sticking.
When your RV's washer P-trap dries out from non-use, gray tank odors will escape through the drain. Add water monthly, install a trap primer, or use a P-trap cap to maintain the water seal and prevent sewer gases.
Atwood 90029 mixing valve has internal O-rings that deteriorate during storage. Can attempt rebuild with new O-rings, but full replacement often better choice after 8 months sitting. Valve is reasonably priced and straightforward to replace.
RV fridge filters should be removed and bypassed during winterization. Leaving the filter in is incorrect - antifreeze damages filters and water inside can freeze. Request they replace it.
Travel with winterized RV but expect no water systems. Use campground facilities or de-winterize once reaching warm destination. Plan to de-winterize in Keys and re-winterize for return trip north.
Yes, you can use a spare DC/DC charger to maintain chassis batteries during winter storage by connecting it between your solar-charged house batteries and chassis batteries. This creates an effective battery maintenance system for long-term parking.
Storage temp spec may be more lenient than charging temp - verify with your battery docs. Most LiFePO4 stores fine below zero. Options are indoor storage at 50% SOC or leaving in RV with heating pad. Main concern is charging temp not storage.
Brakes stuck after 24+ years are rusted cables and drums. May release with penetrating oil and working cables. Complete brake system service required before road use - cables, drums, shoes, and likely wheel cylinders all need inspection or replacement.
You're absolutely right to be concerned - most RV water heaters don't have built-in dry-fire protection, and running them empty can cause serious damage. You need to install an aftermarket safety device or develop better operational habits to prevent this dangerous situation.