Soft start kits are essential for RV owners who want to protect their air conditioners and electrical systems from the stress of high power surges during startup. By gradually ramping up the power, these devices reduce strain on compressors and generators, enabling quieter operation and longer equipment lifespan. Below is a comparison of top-rated soft start kits that are highly compatible with RV air conditioners, featuring options suitable for various BTU capacities and generator sizes.
| Product | Brand | BTU Capacity | Generator Compatibility | Key Feature |
|---|---|---|---|---|
| MICRO-AIR EasyStart FLEX 398 | MICRO-AIR | Up to 72,000 BTUs (6 tons) | Works with generators and inverters | Bluetooth control, advanced soft start technology |
| SoftStartRV Soft Start for RV Air Conditioner | SoftStartRV By NetworkRV | Up to 36,000 BTUs | Compatible with small 2200W generators | 100% waterproof, reduces noise and vibrations |
| Spartan Power SpartanStart | Spartan Power | Up to 20,000 BTUs | Works with 2200 watt inverters/generators | Generator anti-stall & pre-load features |
| HQPASFY Soft Start Kit for RV Air Conditioner | HQPASFY | Supports 15,000 BTU units | 2200W generator compatibility | Prolongs equipment life, smooth startup |
| Wodli Soft Start Kit for RV Air Conditioner | Wodli | Up to 15,000 BTUs | Works with 2200W generator and 20A/30A hookups | Reduces noise, vibration, and circuit trips |
Content Navigation
- MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit
- SoftStartRV Soft Start Kit for RV Air Conditioner
- Spartan Power SpartanStart – Soft Start Kit for RV Air Conditioner
- HQPASFY Soft Start Kit for RV Air Conditioner
- Wodli Soft Start Kit for RV Air Conditioner
- Buying Guide for Soft Start Kits for RV Air Conditioners
MICRO-AIR EasyStart FLEX 398 – Bluetooth Soft Start Kit
Micro-Air EasyStart FLEX 398 is a highly advanced and versatile soft start kit designed for large residential and commercial AC units up to 6 tons (72,000 BTUs). It includes an installation kit and features advanced technology for a smooth, controlled startup that minimizes mechanical stress. This helps extend the lifespan of your RV or home air conditioning system.
What sets it apart is its compatibility with generators and inverters, reducing startup current by up to 75%, which is especially useful in locations with limited or fluctuating power sources. The kit supports 2-stage compressors and heat pump units, increasing its versatility for different AC setups. Bluetooth compatibility adds convenient control and monitoring options.
SoftStartRV Soft Start Kit for RV Air Conditioner
The SoftStartRV kit by NetworkRV is designed specifically for low-profile RV air conditioners up to 36,000 BTUs. Its compact, 40% smaller size fits neatly into most RV setups. It allows starting up to two AC units on a 30-amp circuit or one on a small generator without overloading electrical capacity.
It provides 100% waterproof protection and excels at managing multiple appliances running simultaneously, including fridges, microwaves, and heaters, using a 2200W generator efficiently. Additionally, it reduces compressor noise and vibrations for a quieter RV environment.
Spartan Power SpartanStart – Soft Start Kit for RV Air Conditioner
The SpartanStart soft start system is suited for RV air conditioners up to 20,000 BTUs and works well with 2200 watt power inverters or generators. It’s engineered to reduce battery drain during startup, making it ideal for camper vans and motorhomes.
This product features generator anti-stall and preload protection to prevent generator stress during compressor startup. It can switch seamlessly between generator, inverter, or campsite power with zero learning cycles required. Installation is made easier with included splice connectors, cleaning wipe, and mounting tape.
HQPASFY Soft Start Kit for RV Air Conditioner
HQPASFY’s soft start kit is designed to protect RV air conditioners and electrical systems by ensuring a smooth and quieter startup. It supports up to 15,000 BTUs and is compatible with 2200-watt generators, making it convenient for many RV setups.
The gradual power ramp-up minimizes electricity surges that can trip circuit breakers or strain the compressor, thereby extending the life of both the AC unit and power sources such as generators. It also supports powering multiple appliances simultaneously, including refrigerators and TVs.
Wodli Soft Start Kit for RV Air Conditioner
The Wodli soft start kit enables startups for 15,000 BTU RV air conditioners using a 2200W generator, while still running additional appliances reliably. It supports operating one or two AC units on standard 20A or 30A household RV hookups.
By reducing startup current by approximately 65%-70%, it prevents generator overloads and circuit trips. The kit also decreases noise and vibration from the air conditioner compressor, contributing to a more comfortable RV environment and longer-lasting equipment.
Buying Guide for Soft Start Kits for RV Air Conditioners
BTU Capacity and System Compatibility
Select a soft start kit that matches or exceeds the BTU rating of your RV air conditioner. Kits like the MICRO-AIR EasyStart FLEX handle up to 72,000 BTUs and are suitable for larger residential or commercial units, while others like SpartanStart or SoftStartRV are optimized for typical RV sizes between 15,000 and 36,000 BTUs.
Generator and Power Source Compatibility
Check if the soft start kit supports your generator’s wattage and type (inverter, standard, or limited power supply). Most kits in this guide work well with 2200W generators and inverters, essential for off-grid and campsite power management.
Installation and Size Considerations
Some soft start kits are more compact and easier to install, which is crucial for fitting in tight RV compartments. Kits like SoftStartRV are notably smaller and waterproof, offering flexible placement. Installation kits and included hardware simplify the process.
Reduction of Noise and Vibration
A key benefit of soft starters is quieter operation during compressor startups. If noise reduction is important, consider kits like SoftStartRV or Wodli that emphasize lowering compressor noise and vibration for better RV comfort.
Durability and Additional Features
Look for features such as Bluetooth control (offered by MICRO-AIR), anti-stall protection (Spartan Power), and waterproofing. These extras can improve user experience, system longevity, and protection against common electrical issues.
Simultaneous Appliance Support
Many RV users run multiple appliances concurrently. Select kits that can handle the electrical load of your combined equipment, including AC units, refrigerators, microwaves, and TVs. Some kits enable running two ACs on a single 30A connection efficiently.