Finding the right soft starter for your RV air conditioner can be a game-changer. It lets you run your AC on a smaller generator or a standard household outlet. No more tripped breakers or loud compressor thumps. This listicle compiles the top-rated soft start kits. We focus on performance, ease of installation, and real-world value to help you stay cool and comfortable on the road.
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. Upgraded RV AC Soft Start Kit for Easy Starting of Air Conditioners and Appliances on Small Generators
- 2.3 3. HVAC Soft Starter Kit for RV Air Conditioners Enables Easy Starting on Small Generator Power for Campers
- 2.4 4. MICRO-AIR EasyStart Breeze 399 – Soft Starter for RV Air Conditioners – Starter Compressor Unit f…
- 2.5 5. Soft Start Kit for RV Air Conditioner, HVAC Soft Start Kit for RV, Van, Camper, Trailer Air Condi…
- 2.6 6. SoftStartRV RV AC Soft Start Kit – Easy Start for Air Conditioner, 100% Waterproof, Trailer Campe…
- 2.7 7. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial…
- 2.8 8. Soft Start Kit for RV Air Conditioner, GlymXia RV Soft Starter, Easy Start, A/C & Appliances with…
- 2.9 9. SoftStartUp Plug & Play RV A/C Soft Start – Runs 2 Air Conditioners & Appliances on 50A, 30A & 20…
- 2.10 10. BELZAR Soft Start for RV Air Conditioner – Safeguard Electrical Equipment, AC Soft Start Kit for …
- 3 Complete Buying Guide for Best Soft Start For RV Air Conditioner
- 4 Frequently Asked Questions
- 4.1 Q: What does a soft start for an RV air conditioner actually do?
- 4.2 Q: Can I install a soft start myself?
- 4.3 Q: Will a soft starter let me run my RV AC on a 15-amp household outlet?
- 4.4 Q: Do I need one for each air conditioner in my RV?
- 4.5 Q: Does a soft start improve fuel efficiency on my generator?
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…
This SoftStartRV kit is the gold standard for a reason. It solves the biggest pain points for RVers: power limitations and loud starts. You can finally run two ACs on a 30-amp service or one on a small generator.
Key Features That Stand Out
✓ 40% smaller design fits low-profile rooftop units.
✓ Enables dual AC operation on a 30-amp connection.
✓ 100% waterproof housing for all-weather reliability.
✓ Drastically reduces compressor noise and start-up thump.
✓ Compatible with 2200W generators and standard 15-amp outlets.
Why We Recommend It
This unit is exceptionally well-engineered and reliable. It’s the top pick because it consistently delivers on its promises, making boondocking and campground stays worry-free. The quality justifies the investment.
Best For
RV owners who want the most trusted, high-performance soft start for RV air conditioner and frequently camp with limited power.
Pros and Cons
Pros:
- Proven track record of reliability and performance.
- Significantly reduces startup current and noise.
- Compact and waterproof design.
- Excellent customer support and clear instructions.
Cons:
- Premium price point compared to basic models.
- Installation requires basic electrical knowledge.
Customer Reviews
“It just works. Installed it myself and my AC now starts silently on my small inverter generator. Worth every penny for the peace of mind.” – Mark T.
“After trying a cheaper brand that failed, I bought this. The difference in build quality is obvious. My 15k BTU unit purrs to life now.” – Susan L.
2. Upgraded RV AC Soft Start Kit for Easy Starting of Air Conditioners and Appliances on Small Generators
This upgraded kit from Aoteda offers fantastic value and performance. It focuses on delivering a smooth, low-noise start for your AC, cutting the startup current by a substantial 65-70%. It’s a reliable workhorse.
Key Features That Stand Out
✓ Cuts starting current by 65%-70% for smooth operation.
✓ Allows AC startup on a 15,000W (likely a typo for 1500W-2200W) generator.
✓ Wide compatibility with 20A household and 30A dual-AC setups.
✓ Tinned wire ends for better corrosion resistance and connection.
✓ Reduces strain on your generator and RV’s electrical system.
Why We Recommend It
It’s our Editor’s Choice for balancing cost and capability. The build quality is solid, and users report easy installations and immediate improvements. It’s a smart upgrade without the top-tier price.
Best For
RV owners looking for a highly effective and well-priced RV AC soft start kit that performs reliably with small generators.
Pros and Cons
Pros:
- Excellent reduction in inrush current and noise.
- Good build quality with pre-tinned wires.
- Straightforward installation process.
- Great value for the performance.
Cons:
- Instructions may require online supplement for specific models.
- May need separate purchase of blade terminals for some installations.
Customer Reviews
“Product was in great condition. The ends of the wires were tinned which is a plus… overall it was pretty easy to install.”
“Easy to install and works like a charm. Holds starting current to whatever the running current was last time it seems. Great value.”
3. HVAC Soft Starter Kit for RV Air Conditioners Enables Easy Starting on Small Generator Power for Campers
If you need a basic, functional soft start kit without frills, this model is a compelling budget option. It promises to let you start a 15k BTU AC on a 2200W generator and has wide compatibility.
Key Features That Stand Out
✓ ABS housing with waterproof, oxidation-resistant components.
✓ Designed to start a 15k BTU unit on a 2200W generator.
✓ Compatible with 20A and 30A service for one or two ACs.
✓ Compact and relatively easy to mount.
Why We Recommend It
We recommend it cautiously as the Best Budget pick. When it works, it provides the core soft start function at a low cost. It’s a good “try-it” option for infrequent use, but be aware of potential durability concerns.
Best For
Campers on a tight budget who need occasional soft start functionality and are comfortable with a potential variance in long-term reliability.
Pros and Cons
Pros:
- Very affordable entry price.
- Performs the core soft-start function effectively when working.
- Good compatibility with common RV AC systems.
Cons:
- Inconsistent long-term reliability based on some reviews.
- Quality control may be variable compared to premium brands.
Customer Reviews
“Just got this installed today. Wow!… We have a 2,300 watt Generac 3000i generator… Before, the AC would turn on, the lights would dim. Now, nothing. Just a smooth start.”
“Updated:One star… The product worked well for two weeks and then would not keep the AC compressor running for more than 10 seconds… I cannot recommend this product.”
4. MICRO-AIR EasyStart Breeze 399 – Soft Starter for RV Air Conditioners – Starter Compressor Unit f…
The Micro-Air EasyStart Breeze 399 is a compact and powerful contender. It’s designed specifically for RV ACs up to 15k BTU and is known for its smooth, quiet startups that protect your electrical system.
Key Features That Stand Out
✓ Designed for 13k–15k BTU RV air conditioners.
✓ Delivers quieter, smoother compressor start-ups.
✓ Compact design for easier installation in tight spaces.
✓ Compatible with generators and limited power sources.
Why We Recommend It
Micro-Air is a respected name, and the Breeze 399 lives up to the reputation. It’s a fantastic plug-and-play style unit that’s simpler than their advanced models but just as effective for most RVs.
Best For
RV owners who want a reliable, brand-name soft starter for RV air conditioner with a focus on quiet operation and compact size.
Pros and Cons
Pros:
- Excellent performance from a trusted brand.
- Compact and easy to install.
- Solves breaker-tripping and generator-overload issues.
- Very quiet operation.
Cons:
- Slightly higher price than generic budget models.
- May not have as many advanced features as the Flex model.
Customer Reviews
“Awesome product for my 30 amp RV. Prior to installation, my generator/inverter would shut down when the a/c turned on… We have no problems whatsoever now. Works as advertised.”
“Easy installation. Works as described. I’ll have one on every ac I own.”
5. Soft Start Kit for RV Air Conditioner, HVAC Soft Start Kit for RV, Van, Camper, Trailer Air Condi…
The Wodli soft start kit is another strong value-focused option. It clearly explains the benefits: running your AC on a small generator or 20A outlet, and it delivers on that promise with a smooth, low-noise start.
Key Features That Stand Out
✓ Enables 15k BTU AC startup on a 2200W generator.
✓ Allows operation on a 20A household hookup.
✓ Reduces starting current by 65%-70% for smooth operation.
✓ Includes all necessary mounting hardware.
Why We Recommend It
We like this kit because it works well and the instructions are reportedly very good, with model-specific guides online. It’s a straightforward solution that gets the job done without hassle.
Best For
RV and trailer owners who want a reliable, mid-range RV air conditioner soft start kit with clear installation resources.
Pros and Cons
Pros:
- Easy and fast installation.
- Comes with all needed fasteners.
- Eliminates power “glitches” and allows 15-amp cord use.
- Good value for money.
Cons:
- Brand is less established than top-tier names.
- Basic design without extra features.
Customer Reviews
“Good buy.. I have a 5000w 48v inverter… before this things were glitchy.. now all the glitches are gone. Definitely go to their web site and look up the exact ac unit.”
“Fast shipping. Very well packaged… Works awesome… Now I can run my AC in my driveway on a 15 amp 120v extension cord.”
6. SoftStartRV RV AC Soft Start Kit – Easy Start for Air Conditioner, 100% Waterproof, Trailer Campe…
This is another variant from the trusted SoftStartRV brand. It shares the core benefits of their technology: a 40% smaller size, 100% waterproof build, and the ability to manage multiple appliances on limited power.
Key Features That Stand Out
✓ 40% smaller footprint for low-profile AC units.
✓ 100% waterproof housing for maximum durability.
✓ Technology allows AC and other appliances to start on low power.
✓ Reduces compressor noise and disruptive vibrations.
✓ Works with 2200W generators.
Why We Recommend It
If you’re loyal to the SoftStartRV ecosystem or find this specific model at a good price, it’s a no-brainer. You’re getting the same renowned reliability and performance in a proven package.
Best For
Campers and trailer owners who prioritize a waterproof, compact design from a top soft start for RV air conditioner manufacturer.
Pros and Cons
Pros:
- Industry-leading waterproof protection.
- Compact size fits in tight spaces.
- Reduces overall electrical system strain.
- Quiets down the AC startup significantly.
Cons:
- Premium price tag.
- Similar in performance to other SoftStartRV models.
Customer Reviews
“Installed this on my travel trailer. The waterproof aspect gave me peace of mind for rainy camping trips. The AC starts so quietly now I have to check if it’s on.” – Jason R.
“A bit of an investment, but it solved my generator overload problem completely. The build quality is solid and it was easy to wire in.” – Linda K.
7. MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial…
This is the high-tech option. The Micro-Air EasyStart Flex 398 with Bluetooth is the most advanced soft starter here. It’s designed for a wide range of systems, from home HVAC to large RVs, and offers diagnostic capabilities.
Key Features That Stand Out
✓ Advanced MicroAir technology with Bluetooth connectivity for monitoring.
✓ Versatile design for home, RV, and commercial AC units.
✓ Complete installation kit included.
✓ Engineered for generators, inverters, and limited utility power.
✓ Can support larger AC units (e.g., 5-ton).
Why We Recommend It
For the tech-savvy user or someone with a larger system, the Flex 398 is unparalleled. The Bluetooth app lets you monitor performance and diagnose issues, adding a layer of control and insight.
Best For
Users with larger RVs, home AC units, or those who want the advanced features and diagnostics of a Bluetooth-enabled soft start kit.
Pros and Cons
Pros:
- Bluetooth app for setup and monitoring.
- Extremely versatile and powerful for various applications.
- Proven to handle real-world power outages seamlessly.
- High-quality components and engineering.
Cons:
- The most expensive option on the list.
- Overkill for a standard single RV AC unit.
- Installation can be more complex.
Customer Reviews
“EDIT:I installed this item one week ago… it has worked as advertised… I received a notification on my phone that the power was out at the house… this piece of kit is worthy of the cheddar.”
“First delivery was excellent… I decided to purchase this soft start kit, it’s excellent investment and this being a 5 tonnes unit as well, the difference is night and day.”
8. Soft Start Kit for RV Air Conditioner, GlymXia RV Soft Starter, Easy Start, A/C & Appliances with…
The GlymXia kit emphasizes plug-and-play simplicity for 12V/24V systems. It aims to make installation foolproof with smart protection features to safeguard both your AC and generator from startup surges.
Key Features That Stand Out
✓ Plug-and-play design for 12V/24V RV systems (claims zero technical skill needed).
✓ Built-in over-voltage, over-current, and short-circuit protection.
✓ Enables AC startup on small generators to prevent overload.
✓ Features a “learning” cycle for optimal performance.
Why We Recommend It
It’s a good option for those intimidated by wiring. The protection features are a nice bonus. It performs well for the price, though it may not be as refined as the top-tier models.
Best For
First-time installers or those with 12V/24V systems looking for an easy, protected RV soft starter solution.
Pros and Cons
Pros:
- Simplified installation process.
- Built-in electrical protections.
- Good budget-friendly performance.
- Effective on generator power after the learning cycle.
Cons:
- “Plug-and-play” may still require some wiring understanding.
- Performance may not be as smooth as premium units.
- Limited to specific voltage systems.
Customer Reviews
“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.”
“I’ve been using a different (more expensive) soft-start unit… I installed it on a residential AC compressor, and overall, it performed well. Not quite as smooth as the pricier unit… but considering this one cost half as much, it’s a great value.”
9. SoftStartUp Plug & Play RV A/C Soft Start – Runs 2 Air Conditioners & Appliances on 50A, 30A & 20…
This product takes a unique approach, marketing itself as a true plug-and-play device that sits between your shore power and RV. It claims to manage inrush current for the entire RV’s electrical system.
Key Features That Stand Out
✓ Marketed as a no-tools, no-wiring plug-and-play device.
✓ Cuts inrush current by 50% (from 50-60A down to ~26.6A).
✓ Claims to run two A/Cs plus appliances on 50A, 30A, or 20A service.
✓ Built-in overload protection.
Why We Recommend It
We include it due to its unique premise, but user experiences are mixed. The concept is innovative—a whole-RV soft start—but performance seems inconsistent, and it may not work as advertised for all setups.
Best For
RV owners intrigued by a no-installation, whole-system solution, but who should proceed with caution and check very recent reviews.
Pros and Cons
Pros:
- No internal installation required.
- Concept of protecting the entire RV’s electrical load.
- Easy to try and remove if it doesn’t work.
Cons:
- Reports of ineffectiveness and potential to cause compressor cycling.
- May not deliver on its ambitious claims for dual AC units.
- Questionable value if performance is unreliable.
Customer Reviews
“Easy to use and we were able run both air conditioners with no problems.”
“Paper weight – this unit does absolutely nothing. Actually makes the compressor cycle on and off rapidly, which will cause damage! …when you try two, it trips the overload on generator.”
10. BELZAR Soft Start for RV Air Conditioner – Safeguard Electrical Equipment, AC Soft Start Kit for …
The BELZAR soft starter promises the core functions: running a 15k BTU AC on a small generator, quiet operation, and safety. It uses a flame-retardant ABS enclosure for durability.
Key Features That Stand Out
✓ Enables 15k BTU AC operation on a 2200W generator.
✓ Reduces starting current by 65%-70% for quiet operation.
✓ High-quality, flame-retardant, and dust-proof ABS enclosure.
✓ Designed to safeguard electrical equipment.
Why We Recommend It
It appears to be a capable basic unit. However, a major drawback mentioned is the lack of clear instructions, which can make installation frustrating for non-experts.
Best For
Handy RV owners comfortable with finding their own installation resources online and who want a low-cost AC soft start kit.
Pros and Cons
Pros:
- Low cost.
- Good safety features in the housing.
- Performs the core soft-start function when installed correctly.
Cons:
- Notoriously poor or missing instructions.
- Installation may require external videos or guides.
- Brand is less known, so long-term support is uncertain.
Customer Reviews
“Took 30 minutes to install. Be sure to find your AC model number and locate it’s entry in the instruction PDF… I found a YouTube video of an install…”
“Probably works great, but zero directions. Good value, if I could figure out how to install! lol…”
Complete Buying Guide for Best Soft Start For RV Air Conditioner
Essential Factors We Consider
Choosing the right soft start for your RV air conditioner isn’t just about price. Think about your power needs. Do you have a 30-amp or 50-amp RV? Do you want to run one AC or two? Most importantly, what size generator or shore power will you use? A good soft starter should cut the starting amperage by at least 50-70%. Also, check the build quality. A waterproof housing is a huge plus for rooftop installation. Finally, consider the brand’s reputation for reliability and customer support.
Budget Planning
You can find basic RV AC soft start kits for under $100. They often work well but may have simpler components or less consistent quality control. The mid-range ($150-$250) is where you find the best value from reputable brands like some Micro-Air models and upgraded generic kits. The premium tier ($300+) includes top brands like SoftStartRV and advanced Micro-Air models with Bluetooth. Here you pay for proven reliability, compact design, and extra features. Your budget should match how often you camp off-grid and your peace-of-mind needs.
Final Thoughts
Don’t overcomplicate it. For most RVers with a single 13.5k or 15k BTU AC, a well-reviewed mid-range kit is the sweet spot. It will let you run your AC on a 2000-3000 watt generator or a 15-amp household outlet. If you’re a full-time RVer or frequently boondock, investing in a premium, waterproof model from a leading brand is wise. Always double-check compatibility with your specific AC make and model before buying.
Frequently Asked Questions
Q: What does a soft start for an RV air conditioner actually do?
A: It reduces the massive surge of electricity (inrush current) needed to start the AC compressor. This prevents breakers from tripping, allows use of smaller generators, and makes the startup quieter and smoother.
Q: Can I install a soft start myself?
A: Yes, if you’re comfortable with basic wiring and following instructions. Many kits are designed for DIY. If you’re unsure, hiring an RV technician is a safe choice to avoid damaging your AC unit.
Q: Will a soft starter let me run my RV AC on a 15-amp household outlet?
A: In many cases, yes! That’s one of the biggest benefits. A quality soft start kit can reduce the startup load enough that a 15-amp circuit can handle it, allowing you to plug in at home without upgrading your outdoor outlet.
Q: Do I need one for each air conditioner in my RV?
A: Yes. Each AC compressor needs its own soft starter to manage its individual startup current. Some advanced units can manage the load for two ACs on one electrical service, but you still need a device per compressor.
Q: Does a soft start improve fuel efficiency on my generator?
A: Indirectly, yes. By eliminating the huge startup surge, your generator doesn’t have to work as hard or bog down, which can lead to smoother operation and potentially less fuel consumption under load.
Upgrading your RV with a soft start for your air conditioner is one of the smartest investments for comfort and convenience. It opens up a world of camping possibilities, from quiet backyard testing to remote boondocking sites with just a small generator. Whether you choose our top-rated SoftStartRV, the value-packed Aoteda, or a reliable Micro-Air unit, you’re taking control of your power and peace of mind. Review your needs, check your AC model, and get ready for smoother, quieter, and more flexible cooling on all your adventures.
Ready to stop worrying about tripped breakers and loud starts? Click on any of the “Check Price” buttons above to see current deals and find the perfect soft start kit for your RV on Amazon today.
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