--- title: "Mobile RV Electrical Repair MA | Clean Slate RV" description: "RV electrical repair for 12V & 120V systems in Carver, MA. Converter, inverter, battery & wiring specialists. Serving 50+ South Shore Massachusetts towns." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Why do my RV lights flicker or dim?", "acceptedAnswer": { "@type": "Answer", "text": "Flickering lights usually indicate a voltage drop — often caused by corroded connections, a failing converter, low battery voltage, or undersized wiring. We test the entire circuit to find the weak link." } }, { "@type": "Question", "name": "Can you upgrade my RV's electrical system?", "acceptedAnswer": { "@type": "Answer", "text": "Yes! We handle battery bank upgrades (including lithium conversions), solar installations, inverter upgrades, and electrical panel improvements. We'll design a system that fits your power needs and budget." } }, { "@type": "Question", "name": "What's the difference between a converter and an inverter?", "acceptedAnswer": { "@type": "Answer", "text": "A converter takes 120V shore power and converts it to 12V DC to charge your batteries and run 12V accessories. An inverter does the opposite — it takes 12V battery power and converts it to 120V AC to run household appliances when you're off-grid." } }, { "@type": "Question", "name": "Why do my outlets work on shore power but not on batteries?", "acceptedAnswer": { "@type": "Answer", "text": "Your 120V outlets require either shore power or an inverter to function. If they only work on shore power, you may not have an inverter installed, or your existing inverter may need repair." } }, { "@type": "Question", "name": "How much does an RV electrical repair cost?", "acceptedAnswer": { "@type": "Answer", "text": "Our labor rate is $165/hour. A one-time $125 service call fee applies on your first visit only — that covers a complete electrical diagnostic. We then provide an upfront estimate for any repairs or upgrades. You'll always get an upfront estimate before any work begins." } } ] }, { "@context": "https://schema.org", "@type": "Service", "name": "12V & 120V Electrical", "description": "Battery banks, inverters, converters, solar, wiring — full diagnostics with multimeters, load testers, and thermal imaging.", "url": "https://cleanslatervrepair.com/services/electrical", "provider": { "@type": "AutoRepair", "name": "Clean Slate RV Repair", "url": "https://cleanslatervrepair.com", "logo": "https://cleanslatervrepair.com/og-image.png", "telephone": "+1-508-333-3302", "email": "cleanslaterv@gmail.com", "address": { "@type": "PostalAddress", "addressLocality": "Carver", "addressRegion": "MA", "postalCode": "02330", "addressCountry": "US" }, "geo": { "@type": "GeoCoordinates", "latitude": 41.8834, "longitude": -70.7626 }, "openingHoursSpecification": { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], "opens": "08:00", "closes": "18:00" }, "sameAs": [ "https://www.facebook.com/profile.php?id=61575527498498", "https://share.google/7IOdK6btzO74hEsEk" ], "areaServed": [ { "@type": "AdministrativeArea", "name": "Plymouth County, MA" }, { "@type": "AdministrativeArea", "name": "Bristol County, MA" }, { "@type": "AdministrativeArea", "name": "Barnstable County, MA" } ] } } ] --- ❄️ Book Your Winterization Now — [(508) 333-3302](tel:+15083333302) ❄️ Book Your Winterization Now — [(508) 333-3302](tel:+15083333302) [![Clean Slate RV Repair](/assets/logo-DsNULCls.webp)](/) [Services](/services)[Service Area](/service-area)[Blog](/blog)[About](/about)[Contact](/contact)[Call Now](tel:+15083333302) [Services](/services)[Service Area](/service-area)[Blog](/blog)[About](/about)[Contact](/contact)[Call Now](tel:+15083333302) ![RV 12V & 120V Electrical Repair](/assets/service-electrical-DtS4n_Ny.jpg) 1. [Home](/) 3. [Services](/#services) 5. 12V & 120V Electrical # RV 12V & 120V Electrical Repair Expert electrical diagnostics and repair for all RV systems — from batteries to breakers — at Clean Slate RV Repair. We provide comprehensive diagnostics, repairs, and upgrades for both low-voltage DC (12-volt) and standard AC (120-volt) systems in your RV. That includes battery banks — lead-acid, AGM, lithium-ion, Battle Born, SOK — along with Victron complete systems, inverters, converters, solar charge controllers, [wiring](/services/electrical) harnesses, circuit breakers, outlets, and grounding. Using multimeters, load testers, thermal imaging, and voltage drop analysis, we trace faults, repair shorts, replace corroded terminals, and optimize charging curves. Every job follows NEC, RVIA, and manufacturer specs. [Electrical](/services/electrical) issues in RVs can be frustrating and even dangerous if left unaddressed. Loose connections, corroded wiring, and overloaded circuits are fire hazards. We take electrical safety seriously and ensure every repair meets or exceeds industry standards. Your rig delivers stable power, zero downtime, and long-term reliability — no matter how far off-grid you go. ![Damaged RV power cord wires held up showing exposed copper conductors and worn insulation](/assets/electrical-damaged-wires-Dm33KSN9.jpg) ## Common RV Electrical Problems We Fix RV [electrical](/services/electrical) systems run dual 12V DC and 120V AC systems simultaneously, creating unique diagnostic challenges. Here are the most common issues we see: Dead or weak batteries: Batteries that won't hold a charge, have reduced capacity, or die overnight. We load-test individual batteries, check charging system output, and identify parasitic draws that drain batteries when everything should be off. Converter/charger failures: The converter takes shore power and charges your batteries while powering [12V](/services/electrical) systems. When it fails, your batteries die and 12V accessories stop working. We test and replace converters from all manufacturers. Flickering or dim 12V lights: Usually caused by voltage drops from corroded connections, undersized [wiring](/services/electrical), or a failing converter. We trace the circuit from source to load to find the weak link. GFCI outlets tripping: Ground fault circuit interrupters trip for a reason — moisture intrusion, a faulty appliance, or [wiring](/services/electrical) faults. We diagnose the cause rather than just resetting the breaker. No power on shore hookup: Could be a faulty shore power cord, a tripped main breaker, a failed transfer switch, or a problem at the pedestal. We trace the power path from inlet to panel to identify the issue. ### Need help with 12v & 120v electrical? Give Phil a call or send us a message — we'd love to help. [Call Us](tel:+15083333302)[Send a Message](mailto:cleanslaterv@gmail.com) ![RV power pedestal connection showing wiring entering the junction box during electrical diagnostic](/assets/electrical-power-pedestal-CnxKJOy_.jpg) ## Our Diagnostic Process [Electrical](/services/electrical) diagnosis in an RV requires specialized knowledge and equipment. Our process is systematic and thorough: We start with a full system assessment — checking shore power input, transfer switch operation, converter output, battery voltage and state of charge, and all circuit breakers and fuses. Using multimeters, we measure voltage at multiple points to identify drops. Load testers verify battery capacity under real-world conditions. Thermal imaging reveals hot connections and overloaded [wiring](/services/electrical) that aren't visible to the naked eye. We check every ground connection — poor grounding is one of the most common and most overlooked causes of RV [electrical](/services/electrical) problems. We also verify polarity at every outlet and test all GFCI circuits. ![Close-up of RV power connector with color-coded wires being routed into junction ports](/assets/electrical-connector-detail-CuUelJQO.jpg) ## Battery & Solar Upgrades Want more power for boondocking or full-timing? We design and install complete battery and solar systems tailored to your power needs: Lithium battery upgrades: We install Battle Born, SOK, and other lithium-iron-phosphate (LiFePO4) banks that provide 2-3x the usable capacity of lead-acid at half the weight. We handle all the [wiring](/services/electrical), BMS integration, and charging profile adjustments. Solar installations: Rooftop panels, charge controllers (MPPT or PWM), and [wiring](/services/electrical) — sized correctly for your battery bank and power consumption. We also install Victron complete systems for monitoring and control. Inverter upgrades: Need to run household appliances off-grid? We install pure sine wave inverters sized for your loads, with proper [wiring](/services/electrical) and overcurrent protection. ![Heavy gauge RV power wires stripped and prepared for connection with an RV visible in the background](/assets/electrical-wire-closeup-C1n_uQ1z.jpg) ## Safety & Code Compliance [Electrical](/services/electrical) problems in RVs aren't just inconvenient — they're dangerous. Loose connections, corroded wiring, and overloaded circuits cause RV fires every year. Every repair and installation we perform follows NEC (National [Electrical](/services/electrical) Code), RVIA standards, and manufacturer specifications. We use properly rated wire, correct overcurrent protection, and appropriate connectors for every application. We also check for common safety hazards during every service call — reverse polarity, open grounds, missing bonding, and improperly modified [wiring](/services/electrical) that previous owners or unqualified technicians may have left behind. ## Pricing & What to Expect Our labor rate is $165/hour. A one-time $125 service call fee applies on your first visit only — that includes a thorough [electrical](/services/electrical) diagnostic. From there, we provide a detailed, upfront estimate for any repairs, upgrades, or installations needed. Every connection is tested, every circuit is verified, and every job is documented. No surprises. ## Proudly Serving the South Shore, Southeastern Massachusetts & Cape Cod Based in Carver, MA, we provide mobile RV 12v & 120v electrical across Plymouth, Bristol & Barnstable Counties and surrounding areas. [Carver](/service-area/carver-ma)[Plymouth](/service-area/plymouth-ma)[Wareham](/service-area/wareham-ma)[Middleborough](/service-area/middleboro-ma)[New Bedford](/service-area/new-bedford-ma)[Rochester](/service-area/rochester-ma)[Bourne](/service-area/bourne-ma)[Fall River](/service-area/fall-river-ma)[Yarmouth](/service-area/yarmouth-ma)[Sandwich](/service-area/sandwich-ma) [View full service area](/service-area) ## Frequently Asked Questions ### Why do my RV lights flicker or dim? ### Can you upgrade my RV's electrical system? ### What's the difference between a converter and an inverter? ### Why do my outlets work on shore power but not on batteries? ### How much does an RV electrical repair cost? ## Related Articles [ ### 5 Things Every Massachusetts RV Owner Should Check Before Their First Spring Trip After a long New England winter, here are the 5 essential checks to get your RV road-ready—from roof seals to plumbing pressure tests. ](/blog/rv-spring-maintenance-tips)[ ### Mobile RV & Camper Repair in Yarmouth, MA | The Ultimate Guide Expert mobile RV repair in Yarmouth, MA. We service Bass River, Sun Retreats, and all Mid-Cape campgrounds. Call for on-site AC, electrical, and plumbing repair. ](/blog/yarmouth-mobile-rv-repair) ## Other Services We Offer [ ### Furnace Repair & Upgrades Blower motors, sail switches, combustion chambers, igniters — full diagnostics and modern upgrades to keep you warm on the road. ](/services/furnace-repair)[ ### Water Heater Service Burner jets, thermocouples, anode rods, tankless upgrades — we get your hot water flowing and keep it that way. ](/services/water-heater-service)[ ### Absorption Refrigerator Repair Burner cleaning, thermocouple replacement, cooling unit diagnosis — we keep your fridge ice-cold on gas or electric. ](/services/absorption-refrigerator) ## Need Help with 12V & 120V Electrical? Give Phil a call or shoot us a message. We're here to help — whether you're in Carver or across the South Shore. [Call Us Today](tel:+15083333302)[Send a Message](mailto:cleanslaterv@gmail.com) Clean Slate RV Repair Professional mobile RV repair across Plymouth, Bristol & Barnstable Counties. Based in Carver, MA. 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