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 w/Installation Kit

With all the research I did, this item was rated very well. Everything was as described with good instructions and easy setup. I had a substantial decrease in inrush amps (starting amps) once the FLEX 398 was installed and it learned my compressor. Before installation my inrush amps was 89.9 amps. This unit reduced my inrush amps to 20.1 amps. Excellent quality and performance.

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 in about 10 minutes and confirmed much of the neighborhood was out. It's hot, DAMNED HOT, outside today and this will never do! It took about 15 minutes total time to get the gennie up and running and arrive at the moment of truth. I flipped the breaker for the gennie and powered the panel, then energized the furnace circuit (Ecobee thermostat controls), then energized the A/C circuit and waited. It took right at 2 minutes for the Ecobee to come online (wifi is on UPS) and call for cool. The fan on the A/C started first, seconds later the compressor started, the gennie shouldered the load like a CHAMP, and the A/C was running! I energized the rest of the circuits according to my emergency power plan and monitored cycle performance in cool air conditioned comfort. "I love it when a plan comes together!", Colonel John "Hannibal" Smith. Purchase with confidence! OE Review... Meets and exceeds expectations. Simple, straightforward four wire installation. Easy enough for a handy DIYer. They even have a short YouTube instruction video! I purchased this so I could have AC when the power goes out. I have a 4 ton HVAC that drew 106a inrush before installation. Too much for a modest portable generator in a power outage. After 6 learning cycles it only pulls 26.xxa! A bona fide 75% reduction in startup draw! It’s also much quieter now too. I highly recommend!

I bought this soft start kit for my sons A/C system. I watched many videos online and looked for the best one. When I found a video of a guy putting this exact one on his A/C it looked to easy and appeared to work great. So, I tried it out. My A/C was a different brand than what he installed it on. However, it was almost identical in the installation procedure and was by far the easiest one I saw. I think the overall installation was about 15 minutes. There were no special tools needed and it mounted behind the cover plate just fine. We started it up and measured the amps after installation and it was drastically reduced. The reason we did a soft start was due to power failures and his generator not starting the A/C compressor. He has a 11,000 watt generator with a 12,000 watt start. It struggled to start the A/C. After installing the soft start, it started the A/C with no problem and continued to run along with 2 refrigerators and fans in the house. A little piece of security now when the hurricanes come and power is out. I would highly recommend spending the money on this particular one. It may be a little more but is well worth the ease of installation and the fact that it works with no problem. Just my opinion.

This does work. My starting amps were 45, after the learning stage it now draws 15 amps. I may not see any difference in my monthly electric but it will extend the life of the compressor. It no longer shocks the compressor with high amperage.

The MICRO-AIR EasyStart FLEX 398 - Bluetooth Soft Start Kit for Home Air Conditioner, was very easy to install. I had some questions about the app. So I called Hutch Mountain. They were very friendly and professional. install my easy start on my 4-ton Carrier A/C, which required 108 initial starting amp to start the compressor. After installing the easystart, it reduced the starting amps to 49 from 108 amps. within the five cycles for the easystart to learn, the starting amps went down to 28.9 amps. A week later the starting amps are 27.7 to start the compressor. The MICRO-AIR EasyStart FLEX 398 has reduce the starting amps from 108 to 27 for my A/C. A reduction of 75%. I know I will see a cost savings on my electric bill. Also, my A/C unit operates a lot smoother and quieter. Before installing the MICRO-AIR EasyStart FLEX 398 you could hear when my A/C was starting. Today it is so quiet that I have to go outside to check my A/C to see if it is running. My A/C turns on, runs for about 15 to 20 minutes then shuts off and may turn back on 4o to 60 minutes later. I feel and I am noticing my A/C is running more EFFIECENTLY!!! I strongly recommend this product for all to install in their A/C units. What an AWESOME PRODUCT!!!!

I love this thing. Works great, and I can now comfortably use my generator in the event of a power outage. It also stopped the lights from flickering in the house when the AC turned on. It went from 56 starting amps to 28 amps on a 5 ton Trane unit and it took less than 15 minutes to install. Worth the money!

This is such an improvement for my AC unit which took 160 amps to startup and run at 12 and now it’s 27.2amps to start and still 12 amps to run. Now my generator can run everything in our house. Super easy to install and lots of instructions and videos to help. Great product and definitely recommend!

Works as advertised. Lowered my peak start amperage which should save money and reduce wear and tear. I had 1 issue where this device stopped working as it experienced a peak start overcurrent fault. I'd give more stars but I think the software is mediocre and not completely intuitive. The accompanying video and FAQ are very helpful. Even a layman can install this. I have a 5 ton R-22 unit with a LRA of 169amps. I measured 80 peak amps before. 40 to 60 amp peak amps after install. My unit started quieter with this device.

I run two geothermal heat pumps - one 6 tonne and the other is 3 tonne. No more harsh startup sounds or light flickers on startup. On first startup in learn mode saw 66% reduction in startup current.