RV life is all about freedom, adventure, and enjoying the open road. But let’s be real, nothing zaps the joy out of a hot day quicker than your RV air conditioner struggling to start up, tripping breakers, or demanding a massive generator. That’s where a soft start kit for RV air conditioner comes in handy, transforming your cooling experience from a headache into smooth sailing.

These clever devices are game-changers, especially if you love boondocking, rely on a smaller portable generator, or just want to avoid those jarring jolts when your AC kicks on. A good RV AC soft start kit reduces the massive electrical surge (known as inrush current) that your air conditioner typically pulls when it first fires up. This means less stress on your RV’s electrical system, quieter operation, and the ability to run your AC on power sources that would otherwise buckle under the load.

In this article, we’ll dive into the top 7 soft start kit for RV air conditioner options available today, helping you find the perfect solution to keep your mobile sanctuary cool and comfortable, no matter where your travels take you.

What is an RV Air Conditioner Soft Start Kit and Why Do You Need One?

Imagine trying to start a heavy wagon from a dead stop. You need a big push initially, right? That’s similar to how your RV air conditioner’s compressor works. When it first starts, it demands a huge burst of electricity, often 3-7 times its normal running current. This “inrush current” can cause several problems:

• Tripped Circuit Breakers: Your RV’s shore power connection or a campground’s pedestal might not handle the surge, leading to frustrating trips.
• Generator Overload: Smaller portable generators (like 2000-3000W models) often can’t provide the necessary starting power, stalling out or shutting down.
• Voltage Dips: The surge can cause lights to flicker and other appliances to momentarily lose power.
• Wear and Tear: The sudden stress on your AC compressor can shorten its lifespan over time.

A soft start kit for RV air conditioner uses smart technology to “ramp up” the power to the compressor gradually. Instead of one big jolt, it delivers a controlled, smooth start. This significantly reduces that initial power spike, typically by 65-75%, offering a world of benefits for your RV electrical system:

• Run AC on Smaller Generators: Power your 13,500 BTU or even 15,000 BTU AC with a 2200W generator, opening up more boondocking opportunities.
• Avoid Tripped Breakers: Enjoy reliable cooling without worrying about power interruptions.
• Run More Appliances: With less power allocated to AC startup, you can simultaneously use your microwave, coffee maker, or fridge.
• Extend AC Lifespan: Gentle starts mean less stress on mechanical components.
• Quieter Operation: Say goodbye to that loud “thump” when your AC kicks in.

It’s a small investment that makes a huge difference in your RV’s power management and overall comfort. Now, let’s explore the best options out there!

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The Top 7 Soft Start Kits for RV Air Conditioner

Wodli Soft Start Kit for RV Air Conditioner

The Wodli Soft Start Kit is a fantastic option for RVers looking to maximize their generator’s potential and enjoy smoother AC operation. What really sets it apart are the newly upgraded 4 LED indicators, providing clear, real-time status updates, which can be incredibly helpful during installation and while on the road. This kit ensures your 15,000 BTU air conditioner can comfortably start even with a modest 2200W generator, leaving plenty of power for other essential appliances.

• Key Features:
  • Enables 15,000 BTU AC with a 2200W generator, allowing other appliances to run concurrently.
  • Ideal for 20A household hookups or running two ACs on a 30A hookup (with two units).
  • Reduces starting current by 65%-70% for low noise and smooth operation.
  • Prevents generator overload and circuit breaker trips, extending AC lifespan.
  • Features 4 LED indicators for easy status monitoring and troubleshooting.
  • Quick and easy installation with a detailed manual and color-coded wires.
• Pros:
  • Excellent power flexibility, great for small generators.
  • Reduced noise and vibration during startup.
  • Helpful LED indicators for user convenience.
  • Straightforward installation process.
  • Extends the life of your air conditioner.
• Cons:
  • Still requires some basic wiring knowledge for installation.
• User Impressions: Users appreciate the added power flexibility and the clear status indicators, making their RV trips more comfortable and less prone to power interruptions. Many highlight how it’s allowed them to utilize smaller generators effectively.
• See it on Amazon here

GlymXia RV Soft Start Kit for Air Conditioner

The GlymXia RV Soft Start Kit truly shines with its “Plug-and-Play Installation” promise, making it an incredibly attractive option for anyone who shies away from complex wiring. This kit is designed to get you up and running in about 30 minutes, even if you have zero technical skills, thanks to its clear instructions and video guide. Beyond easy installation, it offers smart protection features and robust performance, allowing you to power a 15,000 BTU AC with compact generators without a hitch.

• Key Features:
  • Plug-and-Play installation with zero technical skills needed, done in 30 minutes with instructions and video guide.
  • Smart Protection for devices and generator, including over-voltage, over-current, and short-circuit protection.
  • Reduces AC startup current by 65-70% (from 30A to 10A).
  • Allows 15,000 BTU AC with 1500W-2200W generators.
  • Enables simultaneous operation of AC and other appliances.
  • Durable dustproof casing and anti-corrosion wiring for tough road conditions.
  • 12-month manufacturer’s hassle-free support.
• Pros:
  • Incredibly easy and quick installation.
  • Robust built-in protection for safety and longevity.
  • Significantly reduces startup current, ideal for small generators.
  • Allows multi-appliance use without overload.
  • Durable construction ensures reliability.
• Cons:
  • Requires at least 5 learning cycles to achieve maximum effect.
• User Impressions: Customers rave about the hassle-free installation and the noticeable difference in generator performance, making it a favorite for DIYers. The added protection features also provide peace of mind for their RV electrical system.
• See it on Amazon here

SoftStartRV Soft Start for RV Air Conditioner

The SoftStartRV unit is a market leader, known for its cutting-edge technology and commitment to customer satisfaction. What truly distinguishes this soft start kit is its incredibly compact size – now 40% smaller – ensuring it fits seamlessly into even the most low-profile RV A/C units. It offers unparalleled flexibility, letting you run two A/Cs on a 30-amp hookup or a single AC on a small generator or 15-amp connection, all while being 100% waterproof.

• Key Features:
  • 40% smaller enclosure, compatible with all low-profile RV A/C units.
  • Enables running two A/Cs on 30-amp, one on a small generator, or 15-amp shore power.
  • 100% waterproof design ensures durability in all conditions.
  • Powers up to 36,000 BTUs with a 2200W generator, including 15,000 BTU rooftop A/C.
  • Reduces compressor noise and vibrations for a quieter RV experience.
  • Offers easy guides, tutorials, and live support from certified technicians.
  • Backed by a 30-day satisfaction guarantee.
• Pros:
  • Ultra-compact design for universal fit.
  • Exceptional versatility for various power sources and AC configurations.
  • Completely waterproof for reliability.
  • Reduces noise for a more peaceful environment.
  • Outstanding customer support and satisfaction guarantee.
• Cons:
  • Often positioned at a premium price point.
• User Impressions: Reviewers frequently praise its compact design and the peace of mind offered by the live support and satisfaction guarantee, making it a reliable choice for various RV setups. Many highlight the significant reduction in AC startup noise.
• See it on Amazon here

Aoteda Soft Start for RV Air Conditioner

The Aoteda Soft Start for RV Air Conditioner is designed with both performance and durability in mind, offering a robust solution for managing your RV’s power demands. Its standout features include a highly durable build with dust-proof and waterproof components, coupled with precision engineering to ensure stable and safe operation. This kit makes it simple to run your 15,000 BTU AC with a smaller generator while also powering other appliances, freeing you from power limitations.

• Key Features:
  • Allows starting a 15,000 BTU AC with a 2200W generator, plus other appliances.
  • Reduces AC starting current by 65%-70% for smoother power consumption and low noise.
  • Compatible with 20A domestic connections or dual ACs on 30A (with two units).
  • Durable construction: dust-proof ABS shell, waterproof wiring, upgraded capacitors, overload/short circuit protection.
  • Includes a detailed wiring diagram and color-coded wires for easy installation.
  • Wide compatibility with various AC brands for motorhomes and travel trailers.
• Pros:
  • Reliable performance for smaller generators and limited power sources.
  • Enhanced protection and extended lifespan for your air conditioner.
  • Robust and durable materials for long-term use.
  • Clear and easy-to-follow installation instructions.
  • Quiet and smooth AC startup.
• Cons:
  • Requires purchasing two units for dual AC operation.
• User Impressions: Customers highlight the Aoteda’s effectiveness in preventing breaker trips and its sturdy build quality, appreciating the smoother operation it brings to their RV AC. The detailed diagram also gets positive mentions for aiding installation.
• See it on Amazon here

Briidea Soft Start Kit for RV Air Conditioner

The Briidea Soft Start Kit is all about enabling “Happy Travels” by providing a reliable and safe solution for your RV air conditioner needs. This kit truly excels in its safety features, boasting a high-quality flame-retardant and dust-proof ABS enclosure with built-in overload and short-circuit protection. It significantly reduces AC startup current, allowing you to comfortably run a 15,000 BTU AC on a 2200W generator while ensuring a quieter and more stable power environment for all your other RV appliances.

• Key Features:
  • Enables 15,000 BTU AC with a 2200W generator, allowing simultaneous operation of other appliances.
  • Compatible with 20A household hookups or two ACs on a 30A hookup (with two units).
  • Reduces starting current by 65%-70% for low noise, smooth starts, and extended AC life.
  • Safe and reliable with a flame-retardant, dust-proof ABS enclosure and built-in protection.
  • Easy installation with a detailed manual and color-coded wires.
  • Wide compatibility with popular AC brands like Dometic and Coleman.
• Pros:
  • Significantly reduces current and noise for smooth operation.
  • Excellent safety features for peace of mind.
  • Broad compatibility with major RV AC brands.
  • Straightforward installation with clear guidance.
  • Enhances comfort during travel with reliable cooling.
• Cons:
  • Like many, a second unit is needed for two ACs.
• User Impressions: Many users find the Briidea soft starter to be a reliable solution for quieter AC startups and appreciate its wide compatibility with popular RV AC brands. The safety features also instill confidence in its performance.
• See it on Amazon here

MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit

The MICRO-AIR EasyStart FLEX 398 is arguably one of the most advanced and versatile soft start kits on the market, incorporating Bluetooth connectivity for unparalleled control and diagnostics. While it’s designed for a wide range of applications from residential to commercial, its capability to drastically reduce startup current by up to 75% makes it an exceptional choice for RVers seeking top-tier performance. Its smart protection features and compact design ensure your air conditioner operates efficiently and lasts longer, no matter the power source.

• Key Features:
  • Advanced Micro-Air technology, reducing startup current by up to 75%.
  • Ideal for home, RV, and commercial use, supporting AC units up to 6 tons (72,000 BTUs).
  • Compatible with generators, inverters, and limited utility power sources.
  • Works with 2-stage compressors and heat pump units, offering broad versatility.
  • Quiet and smart protection features, including intelligent fault detection and short-cycle delay.
  • Compact design (50% smaller enclosure) for easy installation in tight spaces.
  • Includes a comprehensive installation kit.
• Pros:
  • Industry-leading current reduction capability.
  • Exceptional versatility for various AC types and power sources.
  • Intelligent diagnostic and protection features.
  • Very compact size for flexible installation.
  • Reduces noise and light flickering for improved comfort.
• Cons:
  • Premium price point, an investment for serious users.
  • Bluetooth functionality might require a learning curve for some.
• User Impressions: Customers consistently praise the EasyStart Flex for its superior performance and quiet operation, noting its effectiveness across various power sources and AC types, making it a top-tier choice for serious RVers who demand the best in power management.
• See it on Amazon here

Spartan Power SpartanStart – Soft Start Kit

The Spartan Power SpartanStart stands out for its robust build, unique features, and incredibly simple installation process. Hailing from Australia with US support, this soft start kit boasts a “Generator Anti-Stall & Preload” feature that actively preempts generator duress during compressor startup, ensuring seamless operation across different power sources without any learning cycles required. Its straightforward 3-wire installation makes it one of the easiest to set up, perfect for those who want minimal fuss.

• Key Features:
  • Starts up to a 20,000 BTU RV AC with a 2200W inverter or generator.
  • Unique Generator Anti-Stall & Preload feature to temper compressor startup.
  • Seamless switching between generator, inverter, or campsite power with no learning cycles.
  • Provides motor reversal protection during short power outages.
  • Includes a complete installation kit with splice connectors and mounting tape.
  • Backed by an impressive three-year warranty.
  • Extremely easy 3-wire installation (R, C, S wires).
• Pros:
  • High BTU capacity for powerful AC units.
  • Innovative generator protection features.
  • No learning cycles, instant performance.
  • Incredibly simple 3-wire installation.
  • Excellent three-year warranty and US support.
• Cons:
  • Specific wiring (R, C, S) might require checking your AC’s diagram.
• User Impressions: Users love the SpartanStart for its incredibly simple installation and the reliable anti-stall feature, which gives them confidence when running their AC on various power sources. The three-year warranty is also a frequently mentioned plus, offering great peace of mind.
• See it on Amazon here

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FAQ: Your Questions About RV Air Conditioner Soft Start Kits Answered

Q1: What exactly does a soft start kit do for my RV air conditioner?

A: A soft start kit for RV air conditioner is an electronic device that reduces the high “inrush current” (the sudden surge of electricity) your AC compressor pulls when it first starts up. Instead of a huge power spike, it gradually feeds power, allowing for a much smoother and less demanding startup.

Q2: Do I really need a soft start kit for my RV AC?

A: Not everyone needs one, but many RVers find them invaluable. If you regularly run your AC on a small portable generator (like a 2000W or 2200W model), experience tripped circuit breakers at campgrounds, or want to protect your AC compressor and run other appliances simultaneously, then yes, it’s a fantastic investment.

Q3: How much power can a soft start kit save me?

A: A soft start kit doesn’t save energy in the long run, but it significantly reduces the peak startup power demand by 65-75%. This reduction is what prevents circuit breaker trips and allows smaller generators to run your RV air conditioner successfully.

Q4: Is installing a soft start kit difficult? Can I do it myself?

A: For many soft start kits, installation is designed to be DIY-friendly. Most come with detailed instructions, and some even provide video guides. While you’ll need basic electrical knowledge and be comfortable working with wires, color-coded wires and simple connections make it achievable for many RV owners. If you’re unsure, consulting a professional RV technician is always recommended.

Q5: Will a soft start kit allow me to run two RV air conditioners on a 30-amp shore power hookup?

A: Yes, in most cases, but you’ll need to install a separate soft start kit on each air conditioner. With both units having reduced startup current, a 30-amp connection can often handle the combined running load of two ACs without tripping the breaker.

Q6: Are soft start kits compatible with all RV air conditioner brands and sizes?

A: Most soft start kits are designed to be widely compatible with popular RV AC brands like Dometic, Coleman, and Advent. However, it’s crucial to check the product’s specifications for BTU range compatibility and any specific wiring requirements to ensure it matches your particular RV air conditioner model.

Q7: What are the benefits of a soft start kit beyond generator compatibility?

A: Besides allowing smaller generators to power your AC, a soft start kit for RV air conditioner offers several other perks: it reduces the wear and tear on your AC compressor, potentially extending its lifespan; it creates a quieter startup, eliminating that jarring “thump”; and it frees up power to run other appliances like microwaves and hair dryers simultaneously without overloading your RV’s electrical system.

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Conclusion

Investing in a soft start kit for RV air conditioner is one of the smartest upgrades you can make for your recreational vehicle. It solves common power headaches, protects your valuable equipment, and significantly enhances your comfort, whether you’re hooked up at a busy campground or enjoying the tranquility of an off-grid location.

From the user-friendly GlymXia to the advanced Micro-Air EasyStart FLEX, and the robust Spartan Power SpartanStart, we’ve explored some of the best options to ensure your RV stays cool without the power struggles. Consider your specific needs – generator size, installation comfort, and desired features – and pick the kit that will make your next RV adventure even more enjoyable. Happy travels, and stay cool out there!