When you’re out on the open road in your RV, enjoying the freedom of travel, there’s nothing quite like a cool, comfortable interior to come back to after a day of adventure. But keeping your RV cool often means firing up the air conditioner, and that can sometimes be a bit of a power headache. That initial jolt of electricity needed to start an rv air conditioner compressor can trip circuit breakers, strain your generator, or drain your batteries faster than you can say “road trip!”
That’s where an RV AC soft start kit comes into play. These clever devices are designed to reduce the massive surge of power an AC unit demands when it first kicks on. By gradually ramping up the compressor, they significantly lower the starting current, allowing you to run your AC on smaller generators, limited shore power, or even your RV’s inverter without a hitch. It’s a game-changer for boondockers, campers with 30-amp hookups, and anyone looking to extend the life of their AC unit.
Ready to make your RV cooling more efficient and worry-free? Let’s dive into some of the best RV AC soft start kits on the market, helping you pick the perfect one to keep things breezy.
MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit
The Micro-Air EasyStart FLEX 398 stands out as a top-tier soft start solution, especially if you’re looking for advanced features and broad compatibility. This unit isn’t just for RVs; it’s robust enough for residential AC units up to 6 tons, meaning it brings serious power management to your mobile dwelling. What truly sets the FLEX 398 apart is its Bluetooth connectivity, offering diagnostics and control right from your smartphone – a pretty neat feature for tech-savvy RVers.
- ADVANCED MICROAIR TECHNOLOGY WITH INSTALLATION KIT: Most advanced and versatile soft starter for AC units up to 6 tons (72,000 BTUs), reducing mechanical stress.
- IDEAL FOR HOME, RV AND COMMERCIAL USE: Versatile for various applications, supporting AC systems up to 6 tons and compatible with generators and inverters.
- COMPATIBILITY WITH GENERATORS: Reduces startup current by up to 75% for smooth AC operation on limited power sources, compatible with 2-stage compressors and heat pump units.
- QUIET AND SMART PROTECTION: Reduces startup noise and prevents light flickering; intelligent fault detection and short-cycle delay timer protect the compressor motor.
- COMPACT DESIGN FOR EASY INSTALLATION: 50% smaller enclosure for tight spaces, simplified setup for DIYers and professionals.
Pros:
– Extremely versatile, suitable for very large AC units
– Significant reduction in startup current (up to 75%)
– Bluetooth for advanced monitoring and diagnostics
– Smart protection features extend AC lifespan
– Compatible with 2-stage compressors and heat pumps
– Compact size makes installation easier
Cons:
– Potentially overkill or more expensive if only needed for a standard RV AC
– The advanced features might be complex for some users
User Impressions: Customers rave about the EasyStart FLEX 398’s ability to smoothly start even the largest AC units on smaller generators. Many highlight the peace of mind provided by the fault detection and the convenience of the Bluetooth monitoring. While it’s a premium product, users feel the investment is well worth it for the reliability and added features.
Spartan Power SpartanStart – Soft Start Kit for RV Air
The Spartan Power SpartanStart is a solid contender built for the rigors of RV life, promising to let you fire up a 20,000 BTU RV AC with as little as a 2200-watt inverter or generator. What’s particularly impressive is its “Generator Anti-Stall & Preload” feature, which intelligently pre-empts generator stress during startup. Plus, it boasts Australian manufacturing with US support, which many users appreciate for quality and accessibility.
- POWERFUL PERFORMANCE: Starts up to a 20,000 BTU RV AC with a 2200-watt power inverter or generator without draining your battery.
- GENERATOR ANTI-STALL & PRELOAD: Pre-empts generator duress to temper compressor startup and offers seamless switching between power sources.
- EASY INSTALLATION: Simple three-wire connection process, with clear wiring diagram instructions.
- COMPREHENSIVE KIT: Includes soft starter, splice connectors, cleaning wipe, and automotive-grade mounting tape.
- THREE YEAR WARRANTY & US SUPPORT: Australian-made quality with readily available support.
Pros:
– Specifically designed for RV AC units
– Unique anti-stall and preload features for generator protection
– Very straightforward 3-wire installation
– Excellent 3-year warranty
– Reduces battery strain significantly
Cons:
– Might not be as feature-rich as some higher-end models (e.g., no Bluetooth)
– Primarily focused on RVs, less versatile for home use compared to others
User Impressions: RVers love how effortlessly this soft start kit allows them to run their AC on smaller generators, preventing frustrating trips to the breaker. The simple installation is a huge plus, with many reporting they had it up and running in under an hour. The robust build and strong warranty also instill confidence.
MICRO-AIR EasyStart Breeze 399 – Soft Starter for RV Air
The Micro-Air EasyStart Breeze 399 is specifically tailored for RV air conditioners, offering wide compatibility for units up to 13k–15k BTU. It’s designed to work seamlessly with a 2200-watt generator, making it an excellent choice for those wanting to utilize existing power sources more effectively. Its compact design is a real boon in tight RV spaces, ensuring you can install it without a fuss and enjoy quieter, smoother AC startups. This one focuses on core functionality and reliability.
- WIDE COMPATIBILITY WITH INSTALLATION KIT: Designed for RV AC units up to 13k–15k BTU, supporting 2200-watt generators and even running two ACs on 30-amp power with a second unit.
- QUIETER START-UPS: Significantly reduces startup noise for a more comfortable RV environment.
- COMPACT DESIGN: Smaller size allows for easier installation and better use of limited space in an RV.
- REDUCED STARTING CURRENT: Lowers the starting current of your RV air conditioner or refrigeration compressor, compatible with inverter generators.
- EASY INSTALLATION & VERSATILE USE: Includes detailed guides and video tutorials for straightforward setup, versatile for RV camper AC and heat pumps.
Pros:
– Excellent compatibility with common RV AC units and generators
– Noticeable reduction in startup noise and current
– Very compact footprint for easy mounting
– Clear installation instructions and support
– Can support running two ACs with a second unit
Cons:
– Lacks the advanced features like Bluetooth found in the FLEX model
– Might not be suitable for very large, high-BTU AC units beyond its specified range
User Impressions: This model is a hit with RV owners looking for a reliable, no-frills soft start solution. Users consistently report successful AC startups on smaller generators and praise the quiet operation. The ease of installation, thanks to its compact size and clear instructions, is frequently mentioned as a major benefit.
Wodli Soft Start Kit for RV Air Conditioner, HVAC Soft
The Wodli Soft Start Kit enters the scene as a practical and user-friendly option for both home and RV air conditioners. Its standout feature is the newly upgraded 4 LED indicators, which provide real-time status updates during installation and operation. This visual feedback makes troubleshooting and setup incredibly simple, ensuring you know exactly what’s happening with your AC system. It promises to let you run a 15,000 BTU AC with a 2200W generator, allowing for more appliances to run simultaneously.
- IMPROVED POWER MANAGEMENT: Starts a 15,000 BTU AC with a 2200W generator, enabling simultaneous use of other appliances and preventing circuit breaker trips.
- IDEAL FOR HOME AND RV USE: Operates AC on 20A household hookup or two ACs on 30A hookup (with two units), eliminating the need for a larger generator.
- LOW NOISE AND SMOOTH START: Reduces starting current by 65%-70%, minimizing noise, vibration, and extending the AC’s lifespan.
- NEWLY UPGRADED 4 LED INDICATORS: Provides clear status displays for easy installation and monitoring, keeping you informed on the go.
- QUICK & EASY INSTALLATION: Detailed instruction manual and color-coded five wires simplify the setup process for a wide range of AC models.
Pros:
– Unique 4 LED indicator system for easy monitoring and diagnostics
– Significant current reduction (65%-70%)
– Versatile for both RV and home applications
– Reduces noise and vibration, prolonging AC life
– Color-coded wires for simplified installation
Cons:
– Brand might be less recognized than Micro-Air or Spartan Power
– Relies on visual cues instead of app-based diagnostics for advanced users
User Impressions: Many users appreciate the Wodli’s clear LED indicators, finding them incredibly helpful during installation and for quick checks on the road. They report successful operation on limited power sources and value the quieter AC startups. It’s often praised as a reliable and cost-effective alternative for RVers.
MICRO-AIR EasyStart Breeze 399 with Bluetooth – Soft
This version of the Micro-Air EasyStart Breeze 399 takes all the beloved features of its non-Bluetooth counterpart and adds modern connectivity. Designed specifically for RV AC units (up to 13k–15k BTU), it reduces startup noise and current, making it perfect for smaller generators or limited shore power. The addition of Bluetooth transforms this reliable soft start kit into a smart device, allowing you to monitor its performance and diagnostics right from your phone, adding a layer of convenience and control that many modern RVers desire.
- WIDE COMPATIBILITY WITH INSTALLATION KIT: Designed for RV AC units up to 13k–15k BTU, supports 2200-watt generators, and allows running two ACs on a 30-amp cord with a second unit.
- QUIETER START-UPS WITH BLUETOOTH: Significantly reduces startup noise and now offers enhanced comfort and convenience with Bluetooth connectivity for monitoring.
- COMPACT DESIGN: Smaller size compared to other models for easier installation and optimal space utilization in an RV.
- REDUCED STARTING CURRENT: Lowers the starting current of your RV air conditioner or refrigeration compressor, compatible with inverter generators.
- EASY INSTALLATION & VERSATILE USE: Includes detailed guides and video tutorials, versatile for RV camper AC and heat pumps, enhancing fault detection and protection.
Pros:
– Combines proven reliability with modern Bluetooth connectivity
– Excellent for common RV AC sizes and generators
– Reduces startup noise and current effectively
– Compact and easy to install
– Fault detection and protection features
Cons:
– Slightly more expensive than the non-Bluetooth version
– Bluetooth feature might be an unnecessary cost for some users
User Impressions: This soft start kit receives high marks for combining the reliable performance of the Breeze 399 with the added convenience of Bluetooth. Users love being able to check diagnostics and performance from their phone, especially when troubleshooting or just curious about their power usage. It’s seen as the ideal blend of practical functionality and modern tech for RVers.
Frequently Asked Questions (FAQ) About RV AC Soft Start Kits
Q1: What is an RV AC soft start kit and why do I need one?
A: An RV AC soft start kit is an electronic device installed on your air conditioner that reduces the initial surge of electrical current drawn by the rv air conditioner compressor when it starts up. You need one because this initial “inrush” current can be very high, often tripping circuit breakers, straining smaller generators, or rapidly depleting battery banks, especially when running on limited power sources like a 20-amp hookup or a 2200-watt portable generator.
Q2: How does a soft start kit protect my RV air conditioner compressor?
A: By gradually ramping up the power to the compressor instead of hitting it with a sudden, full jolt, a soft start kit significantly reduces mechanical stress and heat buildup. This gentler startup process extends the lifespan of your rv air conditioner compressor, reduces wear and tear on electrical components, and lessens the chance of motor damage over time.
Q3: Can I install an RV AC soft start kit myself?
A: For most RVers with basic electrical knowledge and comfort working with wires, yes, installation is typically a DIY-friendly project. Most kits come with detailed instructions, wiring diagrams, and often video tutorials. The process usually involves connecting 3-5 wires to your AC unit’s internal components. If you’re unsure or uncomfortable, it’s always best to consult a professional electrician or RV technician.
Q4: What size generator do I need with a soft start kit?
A: With a soft start kit, you can often run a 13,500 BTU or 15,000 BTU RV AC unit on a much smaller generator, often as low as 2000-2200 watts. Without a soft start, you’d typically need a 3000-4000+ watt generator to handle the peak startup current. This opens up possibilities for lighter, quieter, and more fuel-efficient generators.
Q5: Will a soft start kit reduce the noise of my RV AC?
A: Yes, many users report a noticeable reduction in the “thump” or “clunk” sound that often accompanies the startup of an RV air conditioner. Since the compressor starts more smoothly and gradually, it minimizes the sudden mechanical shock and vibration, leading to a quieter and more pleasant startup experience.
Q6: Are soft start kits compatible with all RV AC units?
A: Most soft start kits are designed to be widely compatible with a broad range of RV rooftop air conditioners, including many heat pump models. However, it’s crucial to check the product specifications for BTU compatibility and any specific limitations before purchasing. Some advanced kits may also support 2-stage compressors.
Q7: What’s the difference between a soft start kit with and without Bluetooth?
A: A soft start kit with Bluetooth functionality allows you to connect to the device via a smartphone app. This typically provides features like real-time diagnostics, performance monitoring, fault code access, and sometimes even control over settings. Kits without Bluetooth perform the core soft start function effectively but lack the digital monitoring and smart features. The choice depends on your preference for connectivity and diagnostic insight.
Choosing the right soft start kit for your RV air conditioner compressor can dramatically improve your camping experience, especially if you love to boondock or rely on limited power sources. By reducing that initial power surge, you’ll protect your equipment, avoid tripped breakers, and enjoy cooler, quieter comfort wherever your adventures take you. Happy travels!
