Finding the best soft start for your RV air conditioner can make a huge difference in your camping experience. A soft start kit reduces the initial power surge when your AC turns on, allowing you to run it on smaller generators or standard outlets without tripping breakers. This article reviews the top soft start kits on the market, helping you choose the right one for your needs.
In This Article
- 1 Quick Product Comparison
- 2 Our Top 10 Best Soft Start For Rv Air Conditioner Reviews – Expert Tested & Recommended
- 2.1 1. SoftStartRV Soft Start for RV Air Conditioner, RV AC Soft Start Kit for Air Conditioner, Easy Sta…
- 2.2 2. Soft Start for RV Air Conditioner, Upgraded HVAC RV AC Soft Start Kit for RV, Easy an Start Elect…
- 2.3 3. Soft Start Kit for RV Air Conditioners Ensures Easy Starting for AC and Appliances with Small Generators
- 2.4 4. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial…
- 2.5 5. SoftStartRV RV AC Soft Start Kit – Easy Start for Air Conditioner, 100% Waterproof, Trailer Campe…
- 2.6 6. Soft Start Kit for RV Air Conditioner, GlymXia RV Soft Starter, Easy Start, A/C & Appliances with…
- 2.7 7. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial…
- 2.8 8. Soft Start for RV Air Conditioners, Reduces Inrush Current by 70%, Easy DIY Install, Waterproof R…
- 2.9 9. Coleman-Mach Soft Start Kit for All Coleman-Mach Air Conditioners and Heat Pumps – Reduces Start-…
- 2.10 10. 1497…
- 3 Complete Buying Guide for Best Soft Start For Rv Air Conditioner
- 4 Frequently Asked Questions
Quick Product Comparison
Our Top 10 Best Soft Start For Rv Air Conditioner Reviews – Expert Tested & Recommended
1. SoftStartRV Soft Start for RV Air Conditioner, RV AC Soft Start Kit for Air Conditioner, Easy Sta…
The SoftStartRV soft start kit is a premium choice that reduces power surge for smooth AC starts. Its compact design fits low-profile units, and it allows running two ACs on 30-amp service or one on a small generator. With full waterproofing, it’s built to last in any weather.
Key Features That Stand Out
- ✓ 40% smaller size for easy fit on all RV AC units
- ✓ Enables starting on small generators like 2200W models
- ✓ 100% waterproof construction for durability
- ✓ Reduces compressor noise and vibrations significantly
- ✓ Compatible with multiple appliances for balanced power use
Why We Recommend It
We recommend this because it reliably cuts inrush current, making AC operation possible on limited power. Users love the quieter performance and easy installation, making it a top pick for serious RVers.
Best For
This is best for RV owners who frequently dry camp with generators or have low-power hookups, and want a durable, high-performance soft start.
Pros and Cons
Pros:
- Excellent reduction in starting current for generator compatibility
- Robust and waterproof design withstands outdoor elements
- Noticeably reduces AC noise during startup
- Comes with clear instructions for DIY installation
Cons:
- Pricier than some other options on the market
- Installation might be tricky for those new to electrical work
Customer Reviews
Customer Review: “I finally decided I needed to add softstart to my RV AC when I decided to move to a solar generator instead of my pair of Honda 2000’s in parallel that I used to lug around when dry camping. I could never get a single Honda 2000 to start my AC and would need both… I wonder if this softstart would work?”
Customer Review: “I have a 2003 Roadtrek 190 Versatile RV, fitted with a Dometic Cool Cat 10,500 BTU Heat Pump Air Conditioner.I wanted to be able to run the air conditioner using my Pulsar PG2300iS 18000watt running (23000watt peak) Portable Gas-Powered Quiet Inverter Generator. Unfortunately, when I turned the air conditioner on, it would trip the generator. After installing this soft start, it works perfectly.”
2. Soft Start for RV Air Conditioner, Upgraded HVAC RV AC Soft Start Kit for RV, Easy an Start Elect…
This upgraded soft start kit cuts starting current by 65-70%, allowing your AC to run on a 15,000W generator or 20A household connection. It ensures smooth starts with less noise and is compatible with various RV models for versatile use.
Key Features That Stand Out
- ✓ Reduces inrush current by 65%-70% for efficient starts
- ✓ Enables AC operation on 20A domestic connections
- ✓ Lowers noise during compressor startup
- ✓ Wide compatibility with different RV air conditioners
- ✓ Easy installation with pre-tinned wires for convenience
Why We Recommend It
We recommend it for its balanced performance and value. It effectively reduces power surges, making it ideal for RVers who need reliability without breaking the bank.
Best For
Best for RV owners looking for an affordable yet effective soft start that works well with standard power outlets and smaller generators.
Pros and Cons
Pros:
- Significant current reduction for smoother AC starts
- Good compatibility with many RV AC units
- Includes helpful installation resources online
- Cost-effective compared to premium brands
Cons:
- May require additional terminals for installation in some cases
- Waterproof rating not explicitly stated in all listings
Customer Reviews
Customer Review: “Product was in great condition. The ends of the wires were tinned which is a plus. I did have to buy male and female blade terminals to make connections but overall it was pretty easy to install. Following the link provided in the product specs for installation instruction depending on which A/C model you have was key.”
Customer Review: “Easy to install and works like a charm. Holds starting current to whatever the running current was last time it seems. Great value. We will see if it lasts.”
3. Soft Start Kit for RV Air Conditioners Ensures Easy Starting for AC and Appliances with Small Generators
This budget-friendly soft start kit lets you run a 15,000 BTU AC on a 2200W generator, perfect for dry camping. It reduces starting current by 65-70%, prevents generator overload, and offers low-noise operation for a peaceful RV environment.
Key Features That Stand Out
- ✓ Allows AC startup on small 2200W generators
- ✓ Reduces inrush current by 65%-70%
- ✓ Compatible with 20A household hookups
- ✓ Lowers noise for smoother compressor starts
- ✓ Easy DIY installation with good instructions
Why We Recommend It
We recommend it for its excellent value. It solves common power issues without a high cost, making soft start technology accessible to more RVers.
Best For
Best for budget-conscious campers who need a reliable soft start for occasional generator use or to avoid tripping breakers on standard outlets.
Pros and Cons
Pros:
- Affordable price point for effective performance
- Easy to install with clear online guides
- Reduces power surges significantly for stable operation
- Well-packaged with necessary mounting hardware
Cons:
- May not be as durable as premium models over long term
- Some users report minor glitches during initial setup
Customer Reviews
Customer Review: “Good buy.. I have a 5000w 48v inverter and 280ah batteries.. no solar yet I use a 10k generator.. before this things were glitchy.. now all the glitches are gone. Definitely go to their web site and look up the exact ac unit. From their you can wire it in a few minutes the instructions are vary good.”
Customer Review: “Fast shipping. Very well packaged and has all the fasteners for mounting. Works awesome. I have Coachmen travel trailer with a Dometic rooftop unit. Took me all of 5 minutes to install. Highly recommended. Now I can run my AC in my driveway on a 15 amp 120v extension cord. Wife is happy. 2 thumbs up!”
4. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial…
The MICRO-AIR EasyStart FLEX 398 is an advanced soft start with Bluetooth for monitoring. It’s versatile for home, RV, and commercial use, supporting AC systems on generators, inverters, or limited power. Its smart technology ensures smooth startups every time.
Key Features That Stand Out
- ✓ Bluetooth connectivity for remote monitoring and control
- ✓ Compatible with generators, inverters, and utility power
- ✓ Advanced soft start technology for all AC sizes
- ✓ Ideal for residential, RV, and commercial settings
- ✓ Includes installation kit for easier setup
Why We Recommend It
We recommend it for its high-tech features and reliability. The Bluetooth app adds convenience, and it performs well in various environments, making it a great investment.
Best For
Best for tech-savvy users or those with mixed needs (home and RV) who want premium features and robust performance.
Pros and Cons
Pros:
- Bluetooth app allows easy monitoring and adjustments
- Highly versatile for different AC units and power sources
- Effective in reducing inrush current for stable operation
- Durable construction for long-term use
Cons:
- Higher cost due to advanced features
- Installation might be complex for beginners
- Requires smartphone for full functionality
Customer Reviews
Customer Review: “EDIT:I installed this item one week ago today. It has worked as advertised.While returning from running errands this morning I received a notification on my phone that the power was out at the house. The first real world opportunity to see if this piece of kit is worthy of the cheddar. I arrived home to find the AC running on my generator just as it should. Works great!”
Customer Review: “First delivery was excellent, same day, had a problem with thermal overload and compressor was making a horrible sound, having experience in AC, we had power surge a few times that week, I decided to purchase this soft start kit, it’s excellent investment and this being a 5 tonnes unit as well, the reduction in start-up amps is noticeable.”
5. SoftStartRV RV AC Soft Start Kit – Easy Start for Air Conditioner, 100% Waterproof, Trailer Campe…
Another reliable option from SoftStartRV, this kit features a compact, waterproof design. It lets you start two ACs on 30-amp power or one on a small generator, while reducing noise and power surges for a better RV experience.
Key Features That Stand Out
- ✓ 100% waterproof enclosure for all-weather protection
- ✓ Compact size fits low-profile RV AC units easily
- ✓ Enables multiple appliance operation without overload
- ✓ Reduces compressor thumps and vibrations
- ✓ Works with 2200W generators for off-grid camping
Why We Recommend It
We recommend it for its proven durability and performance. It’s a solid choice from a trusted brand, ensuring your AC runs smoothly in various conditions.
Best For
Best for RVers who prioritize waterproofing and compact design, especially those with limited space or who camp in wet climates.
Pros and Cons
Pros:
- Excellent waterproofing ensures longevity
- Effective in reducing starting current and noise
- Good compatibility with small generators
- Backed by positive user reviews and brand reputation
Cons:
- Can be expensive compared to generic brands
- Installation may require basic electrical knowledge
Customer Reviews
Customer Review: “I finally decided I needed to add softstart to my RV AC when I decided to move to a solar generator instead of my pair of Honda 2000’s in parallel that I used to lug around when dry camping. I could never get a single Honda 2000 to start my AC and would need both… This kit solved that issue perfectly.”
Customer Review: “I have a 2003 Roadtrek 190 Versatile RV, fitted with a Dometic Cool Cat 10,500 BTU Heat Pump Air Conditioner. After installing this soft start, I can run it on my generator without tripping. It’s a game-changer for summer camping.”
6. Soft Start Kit for RV Air Conditioner, GlymXia RV Soft Starter, Easy Start, A/C & Appliances with…
The GlymXia soft starter offers plug-and-play installation for 12V/24V RV systems. It has built-in protection against over-voltage and short-circuits, making it safe to use with small generators and preventing power struggles.
Key Features That Stand Out
- ✓ Plug-and-play design for easy installation without technical skills
- ✓ Smart protection against over-current and short-circuits
- ✓ Enables AC startup on small generators effortlessly
- ✓ Compatible with 12V/24V RV electrical systems
- ✓ Helps prevent generator overload and tripped breakers
Why We Recommend It
We recommend it for its user-friendly approach. If you’re not confident with wiring, this kit simplifies the process while still delivering good performance.
Best For
Best for DIY beginners or those who want a hassle-free installation without compromising on safety and functionality.
Pros and Cons
Pros:
- Very easy to install with minimal wiring
- Built-in safety features protect your equipment
- Affordable and effective for basic soft start needs
- Works well with various RV AC units after proper setup
Cons:
- May not be as robust as higher-end models for heavy use
- Some users note it requires a learning cycle for optimal performance
Customer Reviews
Customer Review: “Installed and working great. Don’t forget to let your AC cycle on/off via the thermostat for five times to let the unit ‘learn’. After doing that using a generator is no problem. Installed on a class C motorhome with a new replacement 15k BTU Forgatti AC unit.”
Customer Review: “I’ve been using a different (more expensive) soft-start unit for a few years, so I was curious to see how this budget option would compare. I installed it on a residential AC compressor, and overall, it performed well. Not quite as smooth as the pricier unit I’m used to, but considering this one costs less, it’s a good value.”
7. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial…
Similar to the earlier MICRO-AIR model, this soft start kit features advanced technology for all AC sizes. It’s ideal for home, RV, and commercial use, ensuring compatibility with generators and limited power sources for reliable operation.
Key Features That Stand Out
- ✓ Advanced soft start technology for smooth compressor startups
- ✓ Compatible with generators, inverters, and utility power
- ✓ Suitable for residential, RV, and commercial applications
- ✓ Designed to reduce inrush current effectively
- ✓ Durable build for long-lasting performance
Why We Recommend It
We recommend it for its versatility and reliability. Whether for your home or RV, it provides consistent results, making it a worthwhile investment.
Best For
Best for users who need a soft start for multiple settings or larger AC units, and value proven technology over extra features like Bluetooth.
Pros and Cons
Pros:
- Highly effective in reducing power surges
- Wide compatibility with various AC systems
- Sturdy construction ensures durability
- Trusted brand with positive feedback
Cons:
- Lacks Bluetooth connectivity found in other models
- Can be pricey for basic use cases
- Installation might require professional help for some
Customer Reviews
Customer Review: “EDIT:I installed this item one week ago today. It has worked as advertised. While returning from running errands this morning I received a notification on my phone that the power was out at the house. The AC was running on the generator smoothly, thanks to this soft start.”
Customer Review: “First delivery was excellent, same day, had a problem with thermal overload and compressor was making a horrible sound, having experience in AC, we had power surge a few times that week, I decided to purchase this soft start kit, it’s excellent investment and this being a 5 tonnes unit as well, the performance is impressive.”
8. Soft Start for RV Air Conditioners, Reduces Inrush Current by 70%, Easy DIY Install, Waterproof R…
This soft start kit cuts inrush current by up to 70%, making AC starts quiet and smooth. It’s designed for easy DIY installation with clear instructions, and its waterproof rating ensures it can handle outdoor RV conditions.
Key Features That Stand Out
- ✓ Reduces inrush current by up to 70% for efficient starts
- ✓ Easy DIY installation with step-by-step guidance
- ✓ Waterproof design for reliable use in all weather
- ✓ Minimizes noise and prevents light flickering
- ✓ Provides support from the manufacturer if needed
Why We Recommend It
We recommend it for its high reduction rate and user-friendly installation. It’s a great middle-ground option that balances performance and ease of use.
Best For
Best for DIY enthusiasts who want a significant current reduction without complexity, and for those camping in areas with unstable power.
Pros and Cons
Pros:
- High current reduction (70%) for very smooth starts
- Straightforward installation process for most users
- Waterproof casing adds durability
- Effective in reducing noise and power surges
Cons:
- Some users find the wiring instructions slightly confusing
- May not fit all AC models perfectly without adjustments
- Customer support response can vary
Customer Reviews
Customer Review: “Installing was pretty easy, but a little confusing at the compressor. Works great. Quiet startups and no more issues tripping a 20amp breaker!”
Customer Review: “Installing a soft starter like this can really help reduce the wear on your batteries when boondocking. This one works well so far, definitely reducing the surge current when the compressor kicks in. It doesn’t reduce the noise level of the air conditioner once it’s running, but it does soften the startup thump.”
9. Coleman-Mach Soft Start Kit for All Coleman-Mach Air Conditioners and Heat Pumps – Reduces Start-…
Specifically designed for Coleman-Mach AC units and heat pumps, this kit reduces start-up amperage by up to 75%. It features a unibody enclosure for weather protection and maintains the AC’s exterior look while improving performance.
Key Features That Stand Out
- ✓ Reduces inrush amperage by up to 75% for Coleman-Mach units
- ✓ Compatible with all Coleman-Mach air conditioners and heat pumps
- ✓ Unibody enclosure for optimal weather resistance
- ✓ No change to exterior aesthetics of the AC unit
- ✓ Creates a ramped-up power draw for smooth startups
Why We Recommend It
We recommend it for Coleman-Mach owners seeking a tailored solution. It’s reliable and easy to install, extending the life of your AC by reducing stress on components.
Best For
Best for RVers with Coleman-Mach brand AC units who want a dedicated soft start that integrates seamlessly without altering appearance.
Pros and Cons
Pros:
- Perfect fit and compatibility with Coleman-Mach systems
- High amperage reduction (75%) for effective performance
- Weather-resistant enclosure protects the unit
- Straightforward installation with helpful manual
Cons:
- Limited to Coleman-Mach models, not universal
- Some instructions may be missing details for specific setups
- Can be pricier than generic kits
Customer Reviews
Customer Review: “Works well, have a Coleman Mach on an old Avion truck camper. The air conditioner says 17.5 amps is optimal. My old Honda EU 2000 is only rated at 13.3 amps. AC starts up and runs fine on Low Cool setting, which cools the truck camper pretty quickly. It doesn’t trip the generator, it does run faster when needed.”
Customer Review: “I installed the Soft Start on a 2024 Coleman Model 45004-0792 that is also a heat pump. Overall, the installation was very straight-forward and the instruction manual was very helpful.There is, however, a critical instruction missing.The manual has you disconnecting and discarding the Start Capacitor, but for my model, I needed to keep it. After figuring that out, it works great.”
10. 1497…
The 1497 soft start kit is compatible with Coleman 450XX/452XX/470XX/472XX/480XX/482XX series air conditioners. It protects against high voltage surges with high-quality materials, including an ABS shell that is flame retardant and dustproof.
Key Features That Stand Out
- ✓ Compatible with specific Coleman AC series (e.g., 450XX, 452XX)
- ✓ Protects equipment from voltage surge damage
- ✓ Made with high-quality semiconductor materials
- ✓ ABS shell for flame retardant and dustproof protection
- ✓ Affordable price point for budget-conscious buyers
Why We Recommend It
We recommend it for its targeted compatibility and cost-effectiveness. If you have a compatible Coleman model, it offers good protection without a high cost.
Best For
Best for owners of specific Coleman AC series who need a basic, reliable soft start at a low price, especially for occasional use.
Pros and Cons
Pros:
- Very affordable compared to other options
- Good compatibility with listed Coleman models
- Easy to install with basic tools
- Decent build quality for the price
Cons:
- Limited to specific AC models, not universal
- May have quality control issues in some units
- Less feature-rich than premium kits
Customer Reviews
Customer Review: “First one I ordered had issues, ac shook violently when it turned on. After replacing it with another, it’s now super quiet and starts efficiently. And what a great price point from other named brands out there. Saved over 60% if not more. Well done.”
Customer Review: “Works Great for Coleman AC unit on my camper，easy to install and great price!”
Complete Buying Guide for Best Soft Start For Rv Air Conditioner
Essential Factors We Consider
When picking a soft start for RV air conditioner, think about how much it reduces inrush current. Aim for 65% to 75% reduction. Check if it fits your AC model. Easy installation is key for DIYers. Look for waterproof ratings if your RV faces rain. Features like Bluetooth can be nice for monitoring.
Budget Planning
Soft start kits range from $50 to over $200. Set a budget based on your needs. Basic kits work well for occasional use. Premium kits offer more durability and features. Remember, investing in a good kit can save you from generator headaches later.
Final Thoughts
Your choice depends on your RV setup and power needs. Always match the kit to your AC brand and size. Read reviews from users with similar RVs. A good soft start makes camping more comfortable by letting you run AC anywhere.
Frequently Asked Questions
Q: What is a soft start kit for an RV air conditioner?
A: It’s a device that reduces the initial power surge when your AC compressor starts. This lets you run the AC on smaller generators or standard outlets without tripping breakers.
Q: Can I install a soft start kit myself?
A: Yes, many kits are designed for DIY installation. They come with instructions. If you’re not sure about wiring, ask a friend or hire a pro. Safety first.
Q: How much does a soft start kit reduce the starting current?
A: Most cut it by 65% to 75%. This means your AC needs less power to start, so it won’t overload your generator or outlet.
Q: Will a soft start kit make my AC quieter?
A: Yes, it can. By softening the startup, it reduces the loud “thump” from the compressor. Your AC will run smoother and quieter.
Q: Are soft start kits waterproof?
A: Many are, but not all. Check the product details. Waterproof kits are best for RVs since the AC unit is outside.
Choosing the right soft start for your RV air conditioner can enhance your camping comfort by allowing you to run the AC on various power sources. From our top picks, the SoftStartRV stands out as the best choice for its performance and durability. Remember to consider your specific needs and budget when making a decision. Ready to upgrade your RV? Check out the links above to find the perfect soft start kit for you.
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