---
product_id: 715064292
title: "MICRO-AIR EasyStart FLEX 398 - Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial Use, Works with Generators, Reduces Power Surge, Efficient Start-Up - Up to 6 Tons"
brand: "micro-air"
price: "COP 207500"
currency: COP
in_stock: false
reviews_count: 5
url: https://www.desertcart.co/products/715064292-micro-air-easystart-flex-398-bluetooth-soft-start-kit-home
store_origin: CO
region: Colombia
---

# Reduces starting current by 75% Bluetooth-enabled smart control Compact 50% smaller design MICRO-AIR EasyStart FLEX 398 - Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial Use, Works with Generators, Reduces Power Surge, Efficient Start-Up - Up to 6 Tons

**Brand:** micro-air
**Price:** COP 207500
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Start Smart, Stay Cool — The Future of AC Power Management

## Quick Answers

- **What is this?** MICRO-AIR EasyStart FLEX 398 - Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial Use, Works with Generators, Reduces Power Surge, Efficient Start-Up - Up to 6 Tons by micro-air
- **How much does it cost?** COP 207500 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/715064292-micro-air-easystart-flex-398-bluetooth-soft-start-kit-home)

## Best For

- micro-air enthusiasts

## Why This Product

- Trusted micro-air brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Intelligent fault detection and short cycle delay extend your AC compressor’s lifespan.
- • **Generator Friendly:** Seamlessly compatible with generators and inverters—perfect for off-grid or limited power setups.
- • **Power Surge Slayer:** Slash your AC's startup power spike by up to 75%, protecting your system and your wallet.
- • **Smart & Silent Start:** Bluetooth-enabled soft start reduces noise and flickering lights for a peaceful environment.
- • **DIY-Ready Compact Design:** Half the size, twice the convenience—easy installation for pros and home techies alike.

## Overview

The MICRO-AIR EasyStart FLEX 398 is a Bluetooth-enabled soft start kit designed for residential and commercial air conditioners up to 6 tons. It reduces startup current by up to 75%, minimizing mechanical stress and extending compressor life. Compatible with generators and inverters, it ensures smooth operation even with limited or unstable power. Its compact design and intelligent protection features make installation easy and reliable, delivering quieter starts and enhanced system longevity.

## Description

Micro-Air EasyStart Flex is the most advanced and versatile jump starter designed for all sizes of AC and VR devices up to 6 tonnes (72,000 BTU). This powerful soft start set for household air conditioners optimises AC power through a controlled and gentle start, reduces mechanical stress and extends the life of your air conditioner. Ideal for residential and commercial applications, the EasyStart Flex uses adaptive learning and advanced technology, making it a reliable choice for a variety of configurations. Compatible with generators, inverters and limited power supplies. The Micro Air Soft Starter Kit for AC reduces starting current by up to 75% and ensures efficient AC operation even in areas with unstable or limited power supply. Whether you're in an off-grid location or managing limited power, this Soft A/C starter kit provides essential support to keep your AC in good condition. Equipped with intelligent protection features, including fault detection and short cycle delay timer, the EasyStart Flex protects the compressor motor from potential damage caused by low voltage conditions. This extra protection not only prevents excessive wear, but also extends the life of your air conditioner to ensure long-lasting performance. In addition, the EasyStart Flex minimizes starting noise and flickering of light, creating a quieter and more comfortable environment for uninterrupted cooling, especially useful for nighttime or sensitive applications. With a 50% smaller body, this compact soft starter fits easily into tight or tight spaces without sacrificing performance. Compatible with single-phase motors, TXV, EEV, stationary gauges, 2-stage compressors and heat pump units EasyStart Flex is a versatile and unique solution for various air conditioners. Experience higher efficiency, quiet operation and lasting protection with the Micro-Air EasyStart Flex for your home or AC business.

Review: EXCELLENT STARTING DEVICE - Very pleased! I do suggest changing your capacitor when you add anything like this to your HVAC system. They do go bad just like light bulbs or batteries as an example. Also make sure all connections are secure as this will cause failure on many components. Installation ease will vary on units. Following the instructions is a must. If you’re not sure have a licensed electrician/HVAC technician do this for you. My 4 ton unit had a 98 amp inrush, now after it’s 26 amp after EasyStart learning curve (chose to do the 7 starts). This is an efficient energy savings. Had no problems with my Heat pump prior to installation of the EasyStart except with my 13000 watt generator. The generator will now start my system from eco mode. Size of the EasyStart forced me to mount externally. If you mount it with screws, exercise caution so you don’t drill or run a screw into any components behind it. Please don’t add this to your unit if you have a problem as this is a start assist device. It will probably help to some degree but can’t fix preexisting problems and will have the potential to damage your EasyStart. When the unit starts now on commercial power, I have no flickering lights in my house (been that way since it was installed). Slightly lowered my running amps. So, between inrush and running amps I believe it’s a good value for the money. Take amperage readings before and after to see for yourself. Downloaded the app and compared its readings to Fluke meter. Pretty much spot on. Time will tell the rest. Hope this helps with your decision to purchase.
Review: It works exactly as advertised. - Do what it’s supposed to. Reduced my starting amps on a 4 ton AC unit from 105 amp to 25 amps. Now I only need a 14kW generator to run my entire home. Easy install.

## Features

- ADVANCED MICRO AIR TECHNOLOGY - Micro-Air EasyStart Flex is the most advanced and versatile jump starter designed for all AC sizes of residential appliances up to 6 tons (72,000 BTU). Provides a controlled and gentle start, reduces mechanical stress and extends the life of your air conditioner. This soft start technology improves performance and reliability for domestic and commercial use.
- Ideal for home and commercial use: Perfect for residential and business environments, the EasyStart Flex HVAC Soft Starter Kit effectively supports AC systems up to 6 tons, making it versatile for many applications. Designed for compatibility with generators and inverters, it provides an easy start for household AC systems and reduces starting current by up to 75%. This makes it a valuable solution for optimizing performance in areas where power supply is limited or unstable.
- Alternator Compatibility Specifically designed to operate with generators, inverters and limited power sources. This gentle starter kit for RV air conditioners reduces starting current by up to 75% and ensures smooth AC operation even in locations outside the grid or with limited energy. Compatible with 2-stage compressors and heat pump units, making it a versatile choice for various AC configurations.
- QUIET & SMART PROTECTION This gentle air conditioner starter reduces the starting noise and prevents the light from flashing, creating a quieter and more comfortable environment. Intelligent fault detection and short cycle delay timer protect the compressor motor from low voltage damage and excessive wear, extend the life of your AC unit and ensure peace of mind.
- COMPACT DESIGN FOR EASY INSTALLATION With a 50% smaller case size, this smooth home starter kit is designed to fit tight or tight spaces without compromising performance. The simplified configuration is suitable for both DIY enthusiasts and professionals and makes installation quick and easy.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJDJ87LR |
| BEE Star Rating | 5 Star |
| Best Sellers Rank | 319,184 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 140 in Motor Starters |
| Brand | MICRO-AIR |
| Brand Name | MICRO-AIR |
| Capacity | 6 Tons |
| Colour | White Or Off-white |
| Compressor Type | reciprocating |
| Control Method | App |
| Controller Type | Bluetooth Control |
| Customer Reviews | 4.4 out of 5 stars 211 Reviews |
| Form Factor | Portable |
| Installation Type | DIY |
| Inverter Type | No Inverter |
| Is Outdoor Unit Required | No |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 22.9D x 10.2W x 7.6H centimetres |
| Manufacturer | Micro-Air |
| Model Name | EasyStart Flex: Bluetooth MicroAir FLEX EasyStart 398 |
| Model Number | 398 |
| Noise | 35 Decibels |
| Power Source | Corded Electric |
| Product dimensions | 22.9D x 10.2W x 7.6H centimetres |
| Special Features | Bluetooth |
| Special feature | Bluetooth |
| Start Year | 2039 |
| Start year | 2039 |
| UPC | 850049469241 |
| Unit Count | 1.0 count |
| Voltage | 230 Volts |
| Wattage | 21093 watts |

## Product Details

- **Brand:** MICRO-AIR
- **Capacity:** 6 Tons
- **Special feature:** Bluetooth
- **Product dimensions:** 22.9D x 10.2W x 7.6H centimetres
- **Colour:** White Or Off-white
- **Voltage:** 230 Volts
- **Power source:** Corded Electric
- **Form factor:** Portable
- **Model name:** EasyStart Flex: Bluetooth MicroAir FLEX EasyStart 398
- **Control method:** App

## Images

![MICRO-AIR EasyStart FLEX 398 - Bluetooth Soft Start Kit for Home Air Conditioner, RV & Commercial Use, Works with Generators, Reduces Power Surge, Efficient Start-Up - Up to 6 Tons - Image 1](https://m.media-amazon.com/images/I/61chwhRm6JL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ EXCELLENT STARTING DEVICE
*by R***R on 2 March 2026*

Very pleased! I do suggest changing your capacitor when you add anything like this to your HVAC system. They do go bad just like light bulbs or batteries as an example. Also make sure all connections are secure as this will cause failure on many components. Installation ease will vary on units. Following the instructions is a must. If you’re not sure have a licensed electrician/HVAC technician do this for you. My 4 ton unit had a 98 amp inrush, now after it’s 26 amp after EasyStart learning curve (chose to do the 7 starts). This is an efficient energy savings. Had no problems with my Heat pump prior to installation of the EasyStart except with my 13000 watt generator. The generator will now start my system from eco mode. Size of the EasyStart forced me to mount externally. If you mount it with screws, exercise caution so you don’t drill or run a screw into any components behind it. Please don’t add this to your unit if you have a problem as this is a start assist device. It will probably help to some degree but can’t fix preexisting problems and will have the potential to damage your EasyStart. When the unit starts now on commercial power, I have no flickering lights in my house (been that way since it was installed). Slightly lowered my running amps. So, between inrush and running amps I believe it’s a good value for the money. Take amperage readings before and after to see for yourself. Downloaded the app and compared its readings to Fluke meter. Pretty much spot on. Time will tell the rest. Hope this helps with your decision to purchase.

### ⭐⭐⭐⭐⭐ It works exactly as advertised.
*by B***Y on 17 May 2026*

Do what it’s supposed to. Reduced my starting amps on a 4 ton AC unit from 105 amp to 25 amps. Now I only need a 14kW generator to run my entire home. Easy install.

### ⭐⭐⭐⭐⭐ Great customer service. Working as advertised on our Carrier 5-ton heat pump/AC model CH14NB060-A
*by C***O on 20 January 2025*

Bought this soft-start until to allow us to run our AC off our portable generator (8.5Kw running watts on propane). Haven't test that yet, but will soon. So far, running normally off line voltage, I'm impressed. I went from 167 start up amps to 32 start up amps. That is an 80% decrease! Within 7 learning cycles, this unit decreased startup amps from 54, to 44 to 38 and finally settling at 32-33 amps. I mean, wow! I did replace my start/run cap with this one, which is an OEM-spec replacement: https://www.amazon.com/dp/B00S033F9C?ref=ppx_yo2ov_dt_b_fed_asin_title I read that it's a best practice (though not mandatory) to replace your start/run cap in conjunction with installing this soft-start. The start/run cap takes a beating during normal operation and if yours is more than a few years old and/or you live in a very hot climate like we do, it's recommended to replace it. I replaced the cap and ensure the AC started normally before installing the soft start. I've only had the product installed for a few days on our Carrier 5-ton heat pump/AC model CH14NB060-A, but so far, so good. I'm comfortable working with high voltage wiring but don't know much about AC/heat pump units. So, I did my homework to ensure I didn't make any very stupid and very expensive mistakes. I have to say that Micro-Air's customer service is really great. The wiring diagram they had on their website for my unit was confusing to me and I couldn't really understand it. I emailed customer service and within a few hours I had a customized response from a real human being. He sent me the attached wiring diagram and clearly explained in the email that even though this was not my make/model, the wiring was identical and to just follow the diagram. He was right. The install took just a few hours, taking my time. I had to mount the unit outside of my AC compressor unit as there wasn't enough room inside the control box for the soft start unit. Even if you have to pay an AC technician or electrician to install this for you, it's totally worth it. The fact that we can now run our AC on our generator is a game changer for us.

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-06-01*