Hitting the open road in your RV is all about freedom and comfort, right? But sometimes, that comfort, especially a cool blast from your air conditioner, can feel out of reach if you’re boondocking or relying on a smaller portable generator. Trying to fire up your RV AC often leads to tripped breakers, generator overload, or that dreaded “thump” that rattles your entire rig. Sound familiar?
The good news is, you don’t necessarily need to upgrade to a massive, noisy generator. The secret weapon for many RVers is a soft start kit. This clever device dramatically reduces the initial electrical surge (known as inrush current) when your air conditioner kicks on, making it far easier for a smaller generator for RV air conditioner to handle the load. In fact, many 15,000 BTU AC units that previously needed a 3500W+ generator can now run smoothly on a 2000W-2200W inverter generator with a soft start!
We’ve rounded up the 7 best soft start kits designed to make your RV travels cooler and more convenient. Let’s dive in!
Why You Need a Soft Start Kit for Your RV Air Conditioner
Before we jump into the reviews, let’s quickly explain why these devices are such a game-changer:
- Smaller Generator Compatibility: Run your large RV AC on a smaller, more fuel-efficient, and quieter portable generator.
- Prevent Breaker Trips: Say goodbye to frustrating circuit breaker trips, whether you’re on shore power or running off your generator.
- Extend AC Lifespan: Reducing the sudden current surge minimizes wear and tear on your AC compressor, potentially extending its life.
- Quieter Operation: Many soft start kits contribute to a smoother, quieter startup, eliminating that jarring “thump.”
- Run More Appliances: With your AC drawing less startup power, you’ll have more available wattage to run other essential appliances simultaneously.
Now, let’s explore the top contenders for the best soft start kit for your RV air conditioner.
1. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit
The Micro-Air EasyStart FLEX 398 stands out as a premium choice for RVers seeking ultimate control and efficiency. This advanced soft start kit isn’t just for RVs; it’s designed for a wide range of AC units up to 6 tons, making it incredibly versatile. Its standout feature is the Bluetooth connectivity, allowing you to monitor and manage your AC’s startup performance right from your smartphone, giving you unparalleled insight into your power usage and optimizing your generator’s performance.
Key Features:
– Advanced Micro-Air technology for gentle startup, reducing mechanical stress.
– Ideal for home, RV, and commercial use with AC systems up to 6 tons.
– Specifically engineered for compatibility with generators and inverters.
– Reduces AC startup current by up to 75%.
– Quiet and smart protection features including intelligent fault detection and short-cycle delay.
– Compact design for easy installation in tight spaces.
Pros:
– Industry-leading startup current reduction.
– Bluetooth connectivity for monitoring and diagnostics.
– Compatible with 2-stage compressors and heat pump units.
– Extends AC compressor lifespan and reduces noise.
– Professional-grade build and reliability.
Cons:
– Higher price point compared to some competitors.
– Installation, while simplified, might require basic electrical understanding.
User Impressions:
Users consistently praise the EasyStart FLEX 398 for its effectiveness, often stating that it’s a “must-have” for anyone using a smaller generator or limited shore power. The Bluetooth feature is a big hit, providing peace of mind and data. While the cost is higher, many feel it’s a worthwhile investment for its reliability and advanced capabilities.
2. Soft Start Kit for RV Air Conditioner, GlymXia RV Soft
The GlymXia RV Soft Start Kit aims to simplify your RV power management with its plug-and-play installation and robust protection features. Designed for hassle-free use, this unit is perfect for those who want to avoid complex wiring. It’s a fantastic solution for powering your RV’s 15,000 BTU air conditioner with a smaller portable generator, freeing up power for other essential appliances.
Key Features:
– Plug-and-play installation, requiring zero technical skills (30-minute setup).
– Built-in over-voltage, over-current, and short-circuit protection.
– Reduces AC startup current by 65-70% (e.g., from 30A to 10A).
– Allows 15,000BTU AC units to run on 1500W-2200W generators.
– Dustproof casing and anti-corrosion wiring for durability on the road.
– Enables simultaneous operation of AC and other appliances.
Pros:
– Exceptionally easy, DIY-friendly installation.
– Significant reduction in startup current.
– Robust protection for both AC and generator.
– Durable construction for tough RV conditions.
– Backed by a 12-month manufacturer’s warranty.
Cons:
– May need a few cycles to “learn” for maximum effect.
– Specific compatibility list needs checking.
User Impressions:
Customers love the straightforward installation, often commenting that it truly is “plug-and-play” as advertised. Many report successfully running their AC alongside microwaves or coffee makers with their existing 2200W inverter generator, praising its effectiveness in avoiding trips and extending appliance life.
3. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit
This is another iteration of the highly acclaimed Micro-Air EasyStart FLEX 398, reaffirming its position as a top-tier soft start solution for various AC systems, including your RV air conditioner. Its core strength lies in its ability to provide a controlled, gentle startup, significantly reducing mechanical stress and current demands. This version, like its counterpart, boasts advanced Micro-Air technology designed to optimize your power usage, whether you’re at a campground or enjoying off-grid adventures.
Key Features:
– Advanced Micro-Air technology provides a controlled, gentle startup.
– Versatile for residential, commercial, and RV AC units up to 6 tons.
– Reduces AC startup current by up to 75% for generator compatibility.
– Compatible with 2-stage compressors and heat pump units.
– Features intelligent fault detection and a short-cycle delay timer.
– 50% smaller enclosure size for easier installation in confined spaces.
Pros:
– Substantial reduction in startup current, ideal for smaller power sources.
– Protects AC compressor from damage and extends its lifespan.
– Reduces startup noise and light flickering.
– Simplified installation process with a compact design.
– Highly reliable performance across diverse AC configurations.
Cons:
– Premium pricing may be a barrier for some budgets.
– Bluetooth functionality requires a separate module (not explicitly stated here, but standard for the Flex 398 series).
User Impressions:
RV owners frequently highlight the “night and day” difference this unit makes when starting their AC, especially when relying on a 2200W portable generator. The quiet operation and reduced strain on their electrical system are frequently mentioned benefits, making boondocking much more comfortable.
4. Wodli Soft Start Kit for RV Air Conditioner, HVAC Soft
The Wodli Soft Start Kit is engineered to tackle the common RV problem of powering a 15,000 BTU air conditioner with a smaller 2200W generator, all while keeping other appliances running. Beyond just current reduction, Wodli emphasizes a smoother, quieter AC operation, which is a huge plus for comfort. Its unique 4 LED indicator system offers real-time status updates, making installation and ongoing use more intuitive.
Key Features:
– Enables running 15,000 BTU AC with a 2200W generator and other appliances.
– Ideal for home and RV use, supporting 20A household hookups or two ACs on 30A.
– Reduces starting current by 65%-70% to prevent overload and trips.
– Lowers AC noise and vibration, extending compressor service life.
– Newly upgraded 4 LED indicators for status display and installation guidance.
– Quick & easy installation with color-coded wires and detailed manual.
Pros:
– Excellent for maximizing limited power sources (generator or shore power).
– Reduces noise and vibration for a more peaceful RV experience.
– Informative LED indicators simplify monitoring.
– Protects the AC compressor and electrical system.
– Broad compatibility with various AC models.
Cons:
– Requires careful adherence to wiring instructions.
– May not offer Bluetooth connectivity found in higher-end models.
User Impressions:
Many customers appreciate the visible feedback from the LED indicators, finding it helpful during installation and for troubleshooting. Users report successful operation of their AC on smaller generators and even 20A home outlets, praising its ability to prevent trips and allow for comfortable power usage.
5. SoftStartRV Soft Start for RV Air Conditioner, RV AC Soft
SoftStartRV has made a name for itself with its commitment to innovation and customer support. This kit is designed to be 40% smaller than previous versions, ensuring it fits into almost any low-profile RV A/C unit, a crucial feature for many modern rigs. It’s a truly market-leading solution that guarantees you can power your AC even with minimal power sources, transforming your boondocking capabilities.
Key Features:
– Now 40% smaller to fit all low-profile RV A/C units.
– Allows running two A/Cs on 30-amp, one on a small generator, or 15-amp hookup.
– 100% waterproof design for extreme durability.
– Enables running AC and multiple other appliances simultaneously (up to 36,000 BTUs).
– Reduces compressor noise and vibrations for a quieter RV experience.
– Easy guides, tutorials, and live support from certified technicians.
– 30-day satisfaction guarantee.
Pros:
– Ultra-compact size for versatile installation.
– Exceptional power management for running multiple appliances.
– Superior waterproofing for all-weather reliability.
– Excellent customer support and installation assistance.
– Significant noise reduction.
Cons:
– Might be perceived as a premium product, impacting budget considerations.
– Specific generator output needed for two ACs on 30A (though this is a general constraint).
User Impressions:
RV owners frequently commend SoftStartRV’s responsive customer service and the comprehensive installation guides. The reduced noise and ability to run their AC on a small inverter generator (like a Honda EU2200i) are frequently highlighted as major benefits, allowing for a much more comfortable and flexible RVing experience.
6. Aoteda Soft Start for RV Air Conditioner, Upgraded HVAC
The Aoteda Soft Start for RV Air Conditioner is designed to deliver solid performance and reliability, ensuring your travels are cool and hassle-free. This upgraded HVAC soft starter allows you to comfortably run a 15,000 BTU AC unit with a 2200W generator, making it a perfect companion for extended trips where power sources might be limited. It focuses on stable and safe operation with its durable construction and built-in protections.
Key Features:
– Enables 15,000 BTU AC to run on a 2200W generator while powering other appliances.
– Reduces starting current by 65%-70% for smoother power consumption.
– Lowers noise, ensures smooth starting, and prevents generator overload/trips.
– Wide compatibility for operating AC on 20A domestic or two ACs on 30A connections.
– Durable construction with dust-proof ABS plastic shell, waterproof wiring, and circuit protections.
– Easy to install with a detailed wiring diagram and color-coded wires.
Pros:
– Effectively reduces starting current for smaller generators.
– Enhances sleep quality by reducing AC startup noise.
– Robust and durable construction for longevity.
– Versatile power options, including 20A household hookups.
– Comprehensive protection features for equipment safety.
Cons:
– Specific compatibility with all AC brands should be verified.
– Might not include advanced diagnostic features like Bluetooth.
User Impressions:
Customers report that the Aoteda soft start delivers on its promises, allowing them to use their RV air conditioner with their smaller generators without issue. The straightforward installation and noticeable reduction in startup noise are frequently praised, contributing to a more enjoyable camping experience.
7. Soft Start for RV Air Conditioner, Briidea Soft Starter
The Briidea Soft Start for RV Air Conditioner is another excellent contender for RVers looking to optimize their power usage. This soft starter is engineered to allow a 15,000 BTU air conditioner to run efficiently on a compact 2200W generator. What sets it apart is its strong emphasis on safety and reliability, featuring a high-quality flame-retardant and dust-proof ABS enclosure, alongside built-in overload and short-circuit protection.
Key Features:
– Allows 15,000 BTU AC operation with a 2200W generator and other appliances simultaneously.
– Enables operation on a 20A household hookup or two ACs on a 30A hookup (with two starters).
– Reduces AC starting current by 65%-70% for smooth startups and prevents trips.
– High-quality ABS enclosure that is flame-retardant and dust-proof.
– Built-in overload and short circuit protection for safe and stable operation.
– Easy installation with a detailed manual and color-coded wires.
– Wide applicability to various AC brands like Dometic, Coleman, and more.
Pros:
– Significantly reduces the power draw for easier generator and shore power use.
– Enhances overall travel convenience and comfort.
– Improves sleep experience by reducing AC startup noise.
– High safety standards with flame-retardant casing and multiple protections.
– User-friendly installation process.
Cons:
– May not offer additional smart features like app connectivity.
– Performance on older, less efficient AC units might vary.
User Impressions:
Reviewers frequently highlight the Briidea soft starter’s reliability and its ability to consistently prevent circuit breaker trips. Many express satisfaction with being able to run their AC and other devices simultaneously on their small inverter generator, making it a valuable addition to their RV’s electrical system.
FAQ Section: All Your Soft Start Questions Answered
Having an efficient way to power your RV’s air conditioner is crucial for comfort on the road. Here are some frequently asked questions about soft start kits.
Q1: What exactly is a soft start kit for an RV AC?
A: A soft start kit is an electronic device designed to reduce the initial surge of electrical current (inrush current) that an air conditioner or other large motor-driven appliance draws when it first starts up. This makes it easier for smaller power sources, like a portable generator for RV air conditioner, to handle the load without tripping breakers or getting overloaded.
Q2: How does a soft start kit help my generator?
A: By significantly reducing the initial current spike, a soft start kit allows your generator to operate more efficiently. Instead of having to provide a huge burst of power instantly, the generator can ramp up the power gradually, preventing it from straining or shutting down. This means you can often use a smaller, quieter, and more fuel-efficient inverter generator to run your RV air conditioning.
Q3: Can I install a soft start kit myself, or do I need a professional?
A: Many soft start kits are designed for DIY installation, especially the “plug-and-play” models. They typically come with detailed instructions and color-coded wires. However, if you’re uncomfortable working with electrical wiring or lack basic knowledge, consulting a certified RV technician is always recommended for safety and proper function.
Q4: What size generator do I need for my RV AC with a soft start kit?
A: With a soft start kit, many 13,500 BTU or even 15,000 BTU RV air conditioners can be powered by a 2000W-2200W inverter generator. Without a soft start, these AC units typically require a 3000W-3500W or larger generator. Always check the specific recommendations for your AC unit and soft start kit.
Q5: Do I need a soft start kit for each AC unit in my RV?
A: Yes, if you have multiple air conditioner units in your RV and want to run them independently or simultaneously on a limited power source, you will need a separate soft start kit for each AC unit. Each unit creates its own inrush current that needs to be managed.
Q6: Are soft start kits universal, or do I need a specific one for my AC brand?
A: Most soft start kits are designed to be widely compatible with a variety of RV air conditioner brands and models (e.g., Dometic, Coleman, Furrion). However, it’s always best to check the manufacturer’s compatibility list or product specifications to ensure it will work with your particular AC unit.
Q7: What are the main benefits of using a soft start kit for RV AC?
A: The primary benefits include:
– The ability to run your AC on a smaller, quieter, and more fuel-efficient generator.
– Prevention of circuit breaker trips on shore power or with your generator.
– Extended lifespan for your AC compressor and generator due to reduced stress.
– Quieter AC startup operation.
– More available power to run other appliances alongside your AC.
Conclusion
Choosing the right soft start kit for your RV air conditioner can dramatically improve your camping experience, especially when you’re relying on a smaller portable generator or limited shore power. These devices are true game-changers, allowing you to stay cool and comfortable without the common frustrations of power overload. Whether you prioritize advanced features like Bluetooth connectivity, ultra-easy installation, or robust protection, there’s a perfect soft start solution out there for your RV. Invest in one today and enjoy a cooler, quieter, and more flexible adventure!
