Popular New Guides Product Guides Tools Checklists My Rig

Results for "inverter upgrade"

787+ Q&A Updated Weekly Free
RV Inverter Guide: Modified vs Pure Sine Wave - Safe Power
Solar Batteries Medium 4-6 hours for inverter replacement 326 👍 1

RV Inverter Guide: Modified vs Pure Sine Wave - Safe Power

My multimeter's out and I'm ready to tackle this RV electrical mess myself — pretty sure the inverter's the culprit but need to know where to start. I have a 2000 Winnebago Ultimate Advantage with four deep cycle house batteries and recently installed a Xantrex 758 inverter to replace my old Freedom 15 unit. The first time I tried using the inverter power while unplugged from shore power, something very strange happened - a hair dryer in the bathroom started running by itself and wouldn't shut off when I tried the switch. I had to unplug it, and the handle was warm. The hair dryer appears to be ruined now.

When I bought the Xantrex 758, I paid around $725 for what I thought was a good unit, but I'm now learning there's a difference between modified sine wave and pure sine wave inverters. I wasn't aware of this distinction when I made the purchase, and it turns out the 758 is a modified sine wave unit. I've since heard that modern electronics, especially things like residential refrigerators, computers, and sensitive electronic components, can be damaged by modified sine wave power.

I'm really concerned about potentially damaging my new residential refrigerator, stereo system, and computer equipment. Should I be worried about using this modified sine wave inverter with modern RV electronics? Is the hair dryer incident a sign that I need to upgrade to a pure sine wave unit, or are there other factors that could have caused this problem? I'm trying to understand if my current setup is putting my expensive electronics at risk. …more
RV DC Electrical System: Expert Guide to 12 Volt Systems
Electrical Medium 30 min read 182 👍

RV DC Electrical System: Expert Guide to 12 Volt Systems

Opened my RV this morning to find the 12V system going haywire — lights dimming randomly, fans slowing down, and the inverter shutting off despite full batteries.

Specifically, I need to understand the fundamentals of RV batteries - different types, proper sizing, charging requirements, and maintenance. I'm also confused about DC wiring best practices, what gauge wire to use for different applications, how to properly route and protect circuits, and where fuses and breakers should go. Voltage monitoring is another area where I'm lost - I see all these battery monitors and don't know what I actually need or how to interpret the readings.

I'm also planning some system upgrades down the road like adding solar or upgrading to lithium batteries, so I'd love to understand how all these components work together and what I need to consider for future modifications. Is there a comprehensive resource that covers all aspects of RV DC electrical systems from batteries and wiring through monitoring and upgrades? …more
Best RV Thermostatic Shower Mixing Valves 2024 - Installation Guide
Appliances Medium 3-4 hours 177 👍

Best RV Thermostatic Shower Mixing Valves 2024 - Installation Guide

According to my screaming every morning, there's this scalding burn followed by an icy shock sensation hitting my back in my RV shower. There's no middle ground - it's like my water heater has anger management issues.

I'm shopping for a thermostatic mixing valve to save myself from daily temperature shock therapy. I keep seeing mechanical models like the Symmons Temptrol and Phoenix PF213200, but honestly have no idea if they're any good. And don't get me started on those fancy digital ones like the Kohler DTV+ - they look amazing but I'm guessing they're about as RV-friendly as a pet elephant.

Anyone know which thermostatic valves actually work well in RVs without requiring me to rewire half my rig or sacrifice my firstborn to the plumbing gods? …more
RV Inverter Beeping 3 Times Then Shutting Off: Complete Troubleshooting Guide
Solar Batteries Medium 45 minutes 173 👍

RV Inverter Beeping 3 Times Then Shutting Off: Complete Troubleshooting Guide

Standing next to my RV watching what started as occasional inverter beeps last month escalate into exactly three beeps and complete shutdown after just minutes. My multimeter shows the batteries at 12.8V when I check them, so they seem fine.

I'm worried there might be something more serious going on that I'm missing. Could this be a safety issue? What would cause an inverter to shut itself off like this even when the battery voltage looks normal? I don't want to keep trying to restart it if there's a risk of damaging the system or creating a safety hazard. …more
Coleman Mach AC Fuse Blows With Battery On - Rockwood Fix
Ac Refrigeration Medium 2-3 hours for diagnosis, professional repair likely needed 161 👍

Coleman Mach AC Fuse Blows With Battery On - Rockwood Fix

Found out the hard way that the previous owner of my 2019 Rockwood Minilite 2509s left me with a Coleman Mach AC that blows fuses instantly when I flip on the battery. The AC fuse blows instantly when I turn on the battery disconnect, before the AC is even activated. The fuse literally blows before it's completely seated in the panel.

This began two weeks ago without warning - the system had been functioning normally prior to this. Initial fuse replacement provided temporary operation, but the problem returned on the next trip with the fuse already blown upon arrival.

Given the immediate fuse failure with just battery power connected, what type of electrical fault would cause this symptom pattern in a Coleman Mach unit, and what's the most likely location of the problem in the AC circuit? …more
RV 3-Way to 12V Compressor Fridge Replacement: Cut Power Use 80%
Ac Refrigeration Medium 4-6 hours 150 👍

RV 3-Way to 12V Compressor Fridge Replacement: Cut Power Use 80%

Three weeks into owning this RV and the previous owner left me with a power-hungry Norcold 3-way absorption fridge that's absolutely demolishing my 600AH battery bank daily.

I keep hearing people rave about switching to 12V compressor fridges like the Dometic DMC4101, claiming they'll solve all my power woes. But here's the thing - everyone says "it uses way less power" but nobody gives me actual numbers! I need the cold hard facts: exactly how much power will I save making this switch? Will it really make that big of a difference, or am I just trading one expensive problem for another?

Please tell me someone has real-world experience with the power consumption difference between these fridge types! …more

Still stuck on this repair?

Get a personalized answer from a verified RV mechanic. Describe your issue and get step-by-step help.

Chat with an RV Mechanic
27708 RV owners helped · Avg response under 5 min
MagnaSine MS2012 Inverter Replacement Guide - Best Upgrade Options 202
Solar Batteries Hard 4-6 hours 147 👍

MagnaSine MS2012 Inverter Replacement Guide - Best Upgrade Options 202

About my 2007 Fleetwood Bounder: the MagnaSine MS2012 manual claims it should handle my loads perfectly, but this inverter keeps failing on me anyway. It's been acting up for months now - the microwave keeps causing it to hiccup and shut off, then it comes right back on. I know it's only going to get worse from here.

I've been looking at upgrading to something more reliable, maybe a Victron or another brand, but I'm honestly overwhelmed by all the options out there. What are the best replacement inverters that other RVers have had success with? I just want something that's going to work consistently without all these random shutdowns.

Before I spend a bunch of money though, could this actually be a battery issue instead of the inverter itself? I'd hate to replace a perfectly good unit if the real problem is somewhere else in the system. …more
Georgetown GT7 Lithium Battery Conversion: Complete RV Installation Guide
Solar Batteries Medium 4-6 hours 138 👍

Georgetown GT7 Lithium Battery Conversion: Complete RV Installation Guide

Turned the keys on my 2023 Georgetown GT7 and discovered the previous owner left the electrical system in complete shambles, now facing this intimidating lithium conversion nightmare. I know I need LiFePO4 batteries, but every forum post I read mentions different components and I'm getting conflicting information.

I really want to make this upgrade work - the lead acid batteries are killing me with their weight and charging limitations. What specific components do I need beyond the actual lithium batteries? I'm especially confused about whether my converter will work and if I need additional charging equipment for the alternator. Please tell me my 2023 model year gives me some advantage here! …more
Complete RV Solar System Guide 2024: Sizing, Installation & Wiring
Solar Batteries Medium 4-8 hours 132 👍

Complete RV Solar System Guide 2024: Sizing, Installation & Wiring

Turned to YouTube for RV solar advice and now I'm more confused than ever - probably a dumb question, but how do I actually size this thing? Could fellow RV owners share details about their current solar setups?

Please provide insights on:
- Total system watts
- Fixed or portable panels
- Rigid or flexible panel types
- Series or parallel wiring configuration
- Total system amps
- System voltage
- Wire gauge used
- Controller type
- Personal pros and cons of your current setup
- What you might change in a future installation

These details will help establish baseline specifications for a fleet installation project. …more
Winnebago Ekko Solar Battery Setup: Complete Boondocking Power Guide 2
Solar Batteries Easy N/A - planning 125 👍

Winnebago Ekko Solar Battery Setup: Complete Boondocking Power Guide 2

Looked at our 2022 Winnebago Ekko's dual 320 Amp Hour Lithionics batteries and 450-watt solar setup after my wife mentioned it wasn't optimized for boondocking, and now I'm completely obsessing over our power management. Planning extended boondocking trips to music festivals and remote locations.

I'm particularly interested in understanding how feasible it is to run the roof AC while driving using solar panels and batteries, and ensuring enough power remains when I arrive at my destination. What's the best strategy for maximizing battery life and solar charging efficiency during extended off-grid stays? …more
How to Install a Lithium Battery Manager Relay in Your RV - Complete Guide
Solar Batteries Medium 2-3 hours 122 👍

How to Install a Lithium Battery Manager Relay in Your RV - Complete Guide

Got my weekend planned to install a lithium battery manager relay in my 1999 Fleetwood American Dream Saturday — what should I have ready beforehand? I understand these relays are crucial for protecting lithium batteries from overcharging by managing the connection to the alternator, but I want to make sure I understand the complete installation process before I start.

I'm looking for detailed information on how these battery manager relays function - specifically how they disconnect the batteries from the alternator when charging isn't needed. More importantly, I need step-by-step guidance on the actual wiring process, including how to properly connect the relay between my alternator/converter and the new lithium battery bank. I'm particularly concerned about getting the fusing right and understanding what control circuits are involved in this setup.

This is a significant electrical modification to my RV's charging system, so I want to ensure I have all the technical details covered before I begin the installation. Any comprehensive guidance on the complete process would be extremely helpful. …more
Motorhome vs Toy Hauler Electrical Systems: Complete Comparison Guide
Electrical Easy 10 min read 122 👍

Motorhome vs Toy Hauler Electrical Systems: Complete Comparison Guide

Walked into three dealerships with my $40k budget and they're all pushing different electrical setups — can't afford to buy wrong between motorhome vs toy hauler power systems. Currently I have a 2020 F350 diesel SRW with a Reflection 29rs toy hauler, and I'm comparing a Grand Design Lineage 31ZW Super C motorhome versus a Momentum 381MS toy hauler.

The toy hauler I'm considering comes with serious electrical upgrades - 2 heated 400Ah lithium batteries with internal BMS, dual 3,000kVA inverters, four 300W bifacial solar panels, dual 50A solar controllers, and 60A DC-DC truck charging. Currently, to transport my side-by-side (SxS), I need two trucks and two trailers, which is inefficient.

I'm weighing pros and cons like overall length (truck and toy hauler would be about 60', MH and 20' cargo trailer would be about 57'), maintenance costs of keeping two diesel trucks, and transportation flexibility. I also have an F150 that could potentially serve as a toad vehicle.

What experiences can others share about transitioning between these RV types, especially considering power management and transportation logistics? …more
RV Whirlpool Refrigerator Cycling Every 30 Minutes: Is It Normal? [202
Ac Refrigeration Easy 30 minutes 122 👍

RV Whirlpool Refrigerator Cycling Every 30 Minutes: Is It Normal? [202

Looked everywhere for answers on my Whirlpool residential refrigerator cycling every 30 minutes—my neighbor says it's normal, RV dealer says it's broken, YouTube says something else entirely. The ambient temperature here is around 65°F, and I have both the fridge and freezer set to the 3rd snowflake setting.

I haven't timed it exactly with a stopwatch, but I keep noticing it kicking on again after what feels like a short time. I'm concerned this frequent cycling might be a sign of a problem or could lead to premature failure. I try to keep the vents clean when I can access them. Should I be worried about this 30-minute cycle pattern, or is this within normal range for an RV refrigerator in these conditions? …more

Need a second opinion?

Not sure if this applies to your rig? An RV technician can confirm the fix for your specific make and model.

Ask an RV Expert
27708 RV owners helped · Avg response under 5 min
RV Chassis Battery Draining & Dead Outlets - Troubleshooting
Electrical Medium 2-4 hours 120 👍

RV Chassis Battery Draining & Dead Outlets - Troubleshooting

Finally followed the manual's advice to check the converter first when my outlets died, but my RV chassis battery keeps draining even though the converter tests perfectly. here and I'm at my wit's end with my 2018 Winnebago Vista. The chassis battery keeps going completely dead every few days, even when we're plugged into shore power at the campground. I've already replaced the battery twice thinking it was just old, checked all the obvious stuff like dome lights and radio, and even had the alternator tested - everything checks out fine.

What's really driving me crazy is that this just started happening about a month ago out of nowhere. We've been full-timing for three years without any major electrical issues. I'm wondering if there's some parasitic draw I'm missing or if the battery isolator could be acting up? Has anyone else dealt with this nightmare? I'm getting tired of jump-starting this thing every other day and my wife is about ready to sell the rig and get a travel trailer instead! …more
50 Amp RV Inverter Charger Replacement: Complete Installation Guide 20
Solar Batteries Hard 4-6 hours 120 👍

50 Amp RV Inverter Charger Replacement: Complete Installation Guide 20

Finally moved into an RV with a 20-year-old Tradewinds inverter/charger unit that's completely dead and I have absolutely no idea how to replace it. The repair shop is offering a used Magnum MS2812 (2800VA) for $700 installed, but I'm concerned about its actual charging capacity versus my requirements.

My RV is wired for 50A shore power service, and I need an inverter/charger that can handle the full charging load. The shop claims the MS2812 will work, but the specifications seem to indicate it's only a 30A charger unit. Are there any legitimate 50A inverter/charger options available under $1000, or should I be looking at different manufacturers like Progressive Dynamics or Aims for this price range? …more
Robert, RV Mechanic
Ask an RV Mechanic Avg reply < 5 min

My Rig Settings

Hi, I'm Hank!
Need help setting up? I can walk you through it
Rig Info
Give it a name you'll recognize
Power & Electrical
Climate Control
Water System
Refrigerator Type
Leveling System
Convenience & Features
Sync across devices

Rig Saved to Cloud

Your sync code (use this to load your profile on another device):

Write this down! There is no way to recover it if you lose it and clear your browser.