MICRO-AIR EasyStart Breeze 399 - Soft Starter for RV Air Conditioners - Starter Compressor Unit for Travel Trailers - Soft Start for 120V RV A/C Motors - Compact Design, Breeze w/Installation Kit

Was easy to install on 12 year old Dometic AC units. Worked great on both units. Only one issue- compressor on one ac was drawing normal 12-13 amps before install and 17 amps after. Removing easy start unit didn't change amp draw, still high. Reinstalled the Easy-Start and amp draw remained high. Possible the compressor is about to fail. Fortunately it’s simple to remove the Easy-Start and reinstall on a new unit, but in the meantime that AC seems to be running well.

Awesome product for my 30 amp RV. Prior to installation, my generator/inverter would shut down when the a/c turned on. My a/c unit would also throw the breaker when I plugged it into the house 120v-20amp outlet. We have no problems whatsoever now. Works as advertised. Easy starts and reduced amperage usage. We did have to call customer service for assistance because not every a/c unit is the same. That assistance was exceptional. Because I was hesitant to make a mistake, the service rep even used FaceTime and gave us step by step instructions to help during the installation. We appreciated the personal attention given to make sure we were able to use their product. Very happy with the product and will add one of these for each of our home units.

This EasyStart Breeze 399 is great. I was trying to run the RV's AC using a 10 gauge extension cord from a 15-amp outlet in the garage, as we couldn't cool the RV down with our MaxxAir roof vent fan when parked in front of the house for setup on a hat day. Running the AC would trip the 15-amp breaker from time to time. After installing the EasyStart on our Coleman Mach 3 AC unit, we can now run the AC all day without tripping the breaker. I watched a video on how to install before attempting, so I knew what to expect when following the detailed instructions. Installation was easy and fast thanks to the included install kit with the Wago quick connectors. I was done in about 15-20 minutes which included the time taken to get all the tools needed for the installation. I am confident that I could also power this AC unit with my 4500W invertor generator with 30-amp RV outlet if needed. This will be one of the first upgrades to our new RV when we move from a TT to a 5th, adding one to each AC unit. There are cheaper knockoffs out there, but I wanted a trusted name that I could count on. My wife's happiness and comfort made the purchase well worth the money the first time we used it!

Easy installation. Works as described. I’ll have one on every ac I own.

Installed this on my 8,300btu ge clearview window unit, took my starting amps down to 7amps and falling(it is winter and cant fully run it). My lights no longer flicker and the start sound level is greatly reduced. Also, the unit used to cause the entire wall to creak from the compressor starting and nearly cause the unit to jump, the soft starter eliminated this.

Product was exactly as described. Easy installation, by a diy’er like me. I am just handy, but no professional by any means. Now I am able to run the ac + all other loads off of my 5000w AOI inverter on my rv. I would highly recommend if you are having a problem with the surge current either popping a fuse, or causing a overcurrent protection.

Product works great on our boat CruisAir unit. The reason for a 4 star is the directions or should I say the lack of clear instructions on how to install. What should have taken maybe an hour, took 4 hours. The unit is great and worth buying but be better prepare them you think.

I never write reviews but I feel like the majority of people leaving a negative comment aren’t aware that some rv’s air conditioners have a built in soft start. My Coleman Mach 15 doesn’t BUT I had to pull the model number and be sure. There are other Coleman series that DO have a built in soft start. It is vital that you get the model number and look to see if your ac has a built in soft start!!! This is why the soft start you added most likely isn’t working. It has nothing to do with the device itself!! Hope this helps you all. Happy Camping 🥰 Potential Outcomes of Adding a Soft Start to an AC with a Built-In Soft Start 1. Redundant Functionality: • What Happens: A built-in soft start (e.g., Dometic’s SmartStart in the FreshJet 3 Series) already reduces the startup current (inrush current) by up to 60-75%, making the AC compatible with smaller generators or limited power sources. Adding an aftermarket soft start (e.g., Micro-Air EasyStart, SoftStartRV, or SpartanStart) would attempt to perform the same function, but the built-in soft start is likely optimized for the unit’s specific compressor and electrical system. • Result: The aftermarket soft start may not provide additional benefits, as the inrush current is already minimized. The two systems could interfere with each other, leading to unpredictable performance. 2. Electrical Interference or Conflict: • What Happens: Both the built-in and aftermarket soft start devices use electronic controls to gradually ramp up the compressor’s power draw. If the aftermarket device is not designed to work with the existing soft start circuitry, it could send conflicting signals to the compressor, potentially causing erratic operation, such as improper startup sequencing, voltage fluctuations, or compressor stalling. • Result: This could lead to reduced efficiency, increased wear on the compressor, or even damage to the AC unit’s electrical components. 3. Warranty Voidance: • What Happens: Modifying an RV air conditioner with a built-in soft start by adding an aftermarket device may void the manufacturer’s warranty. Manufacturers like Dometic design their units with specific components, and adding external devices could be seen as an unauthorized modification. • Result: If the AC unit fails, the manufacturer may refuse to honor warranty claims, leaving you responsible for repair costs. 4. Installation Complications: • What Happens: Installing an aftermarket soft start involves wiring it into the AC unit’s compressor and control system. If the unit already has a built-in soft start, the existing wiring and control board may not be compatible with the additional device, leading to installation errors or the need for complex modifications. • Result: Improper installation could cause electrical shorts, blown fuses, or damage to the AC unit, soft start device, or RV’s electrical system. 5. No Significant Performance Improvement: • What Happens: Since the built-in soft start already reduces the inrush current to levels suitable for small generators (e.g., 2,000W) or 30-amp services, adding another soft start is unlikely to lower the current further or improve performance noticeably. • Result: You may spend money and time on an unnecessary device without gaining any practical benefits, such as the ability to run the AC on an even smaller power source. 6. Potential Overheating or Component Stress: • What Happens: If the two soft start systems are not synchronized, the compressor or control board could experience irregular power delivery, leading to overheating or excessive wear. • Result: This could shorten the lifespan of the AC unit or its components, requiring costly repairs or replacement