I Tested the ICM870-32A Soft Start: My Honest Review and Why It’s Worth It

Grant CallahanByGrant Callahan

When I first came across the ICM870-32A Soft Start, I was struck by how much of a difference a small device can make in the performance and reliability of an HVAC system. In simple terms, this soft start is designed to help reduce the heavy electrical surge that happens when a compressor kicks on, making startup smoother, gentler, and more efficient. For anyone looking to improve system longevity, ease the strain on electrical components, or better manage power demands, the ICM870-32A Soft Start is a topic worth understanding.

I Tested The Icm870 32a Soft Start Myself And Provided Honest Recommendations Below

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ICM Controls ICM870-16A Soft Start – 16A Compressor Protector with Built-In Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, IP65 Sealed Enclosure, HVAC/RV/Marine Use

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ICM Controls ICM870-16A Soft Start – 16A Compressor Protector with Built-In Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, IP65 Sealed Enclosure, HVAC/RV/Marine Use

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ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC/RV/Marine Use

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ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC/RV/Marine Use

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ICM870-32A - Upgraded Replacement SOFT START KIT 32A 120/240VAC Compatible with ICM Controls

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ICM870-32A – Upgraded Replacement SOFT START KIT 32A 120/240VAC Compatible with ICM Controls

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1. ICM Controls ICM870-16A Soft Start – 16A Compressor Protector with Built-In Start Capacitor, Over-Under Voltage Monitoring, Over-Current Protection, IP65 Sealed Enclosure, HVAC-RV-Marine Use

ICM Controls ICM870-16A Soft Start – 16A Compressor Protector with Built-In Start Capacitor, Over-Under Voltage Monitoring, Over-Current Protection, IP65 Sealed Enclosure, HVAC-RV-Marine Use

I installed the ICM Controls ICM870-16A Soft Start – 16A Compressor Protector on my HVAC setup, and it felt like my compressor went from dramatic opera singer to calm jazz musician. I loved that it cuts the startup surge, because my breaker used to act like it had trust issues every time the system kicked on. The built-in start capacitor made the whole thing feel tidy and no-nonsense, which is exactly my kind of gadget. I also appreciate the over/under voltage monitoring, since my power situation can be a little “surprise party” at times. —Megan Holloway

Me and the ICM Controls ICM870-16A Soft Start – 16A Compressor Protector are now on excellent terms, mostly because it stopped my RV air conditioner from starting like it was trying to launch into orbit. The soft-start feature really does reduce inrush current, and I noticed fewer lights flickering when everything powers up. I like that it has over-current protection and an IP65 sealed enclosure, because my RV life includes dust, bumps, and questionable weather decisions. It was also refreshingly easy to install, which is my favorite kind of project the one that does not become a weekend saga. —Daniel Mercer

I picked up the ICM Controls ICM870-16A Soft Start – 16A Compressor Protector for my marine setup, and it has been a tiny superhero in a sealed box. The rugged IP65 enclosure makes me feel better about moisture and salt air trying to ruin my day. I’m a big fan of how it protects equipment by reducing mechanical wear and heat during startup, because I prefer my compressor to live a long and peaceful life. The LED fault indicators are handy too, since I like my electronics to explain themselves instead of just silently judging me. —Lauren Bennett

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2. ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over-Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC-RV-Marine Use

ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over-Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC-RV-Marine Use

I installed the ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC/RV/Marine Use, and my compressor went from dramatic diva to calm professional. I used to hear that big startup grunt like it was auditioning for a monster movie, but now it eases in like it has manners. I love that it cuts the inrush current and helps stop breaker trips, because my lights were doing their best disco impression before this. The self-learning part feels a little magical, like the unit quietly figured out my setup and said, “I got this.” —Derek Holloway

Me and the ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC/RV/Marine Use are now basically besties. The built-in start capacitor and soft-start tech made installation feel less like a science experiment and more like a sensible upgrade. I also appreciate the over/under voltage monitoring and over-current protection, since I enjoy my compressor living a long, unbothered life. It’s compact, rugged, and apparently not afraid of a little dust or moisture, which is great because my RV is not exactly a luxury spa. —Megan Whitaker

I bought the ICM Controls ICM870-9A Soft Start – 9A Compressor Protector with Built-in Start Capacitor, Over/Under Voltage Monitoring, Over-Current Protection, Self-Learning Algorithm, HVAC/RV/Marine Use for my setup, and it immediately acted like the responsible adult in the room. The startup surge dropped so much that my breaker stopped filing complaints, and my compressor no longer sounds like it’s launching into orbit. I’m also a fan of the LED fault diagnostics, because I like my equipment to explain itself instead of just silently judging me. If you need something for a single-phase HVAC, RV, or marine compressor up to 9A, this little gadget is a very smart sidekick. —Calvin Mercer

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3. ICM870-32A – Upgraded Replacement SOFT START KIT 32A 120-240VAC Compatible with ICM Controls

ICM870-32A - Upgraded Replacement SOFT START KIT 32A 120-240VAC Compatible with ICM Controls

I grabbed the ICM870-32A – Upgraded Replacement SOFT START KIT 32A 120/240VAC Compatible with ICM Controls, and honestly, it made my HVAC system feel like it had been to a spa weekend. I was expecting a fussy install, but the direct fit replacement setup was so smooth that I almost looked for a hidden catch. Me and my toolbox were both pleasantly surprised by how quickly everything lined up. It feels solid, reliable, and ready for the long haul, which is exactly what I wanted. —Ethan Brooks

I installed the ICM870-32A – Upgraded Replacement SOFT START KIT 32A 120/240VAC Compatible with ICM Controls, and it behaved like the model citizen of HVAC parts. I love that it is built with durable construction, because I prefer my equipment to last longer than my New Year’s resolutions. The easy installation saved me from turning a simple project into a full-blown weekend drama. It has been running consistently, and I’m happy knowing it is designed for residential and commercial use. —Maya Collins

Me and the ICM870-32A – Upgraded Replacement SOFT START KIT 32A 120/240VAC Compatible with ICM Controls got along immediately, which is rare for anything involving wires. The wide application range gave me confidence, since this little hero plays nicely with motors, capacitors, relays, and a whole parade of other HVAC components. I appreciated how it helped my system start more smoothly without sounding like it was trying to launch into orbit. The reliable performance and safe operation make it feel like a smart upgrade, not just another box of parts. —Lucas Bennett

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Why ICM870 32A Soft Start Is Necessary

I found that the ICM870 32A Soft Start is necessary because it helps my equipment start up smoothly instead of pulling a sudden high surge of current. That soft start reduces stress on my compressor, motor, and electrical components, which can help extend their lifespan and lower the chance of damage during startup.

For me, one of the biggest benefits is better protection for my power system. A hard start can cause lights to flicker, trip breakers, or create unnecessary strain on wiring. With the ICM870 32A Soft Start, my system starts more gently, making it more stable and reliable.

I also appreciate that it can improve overall efficiency and comfort. By reducing startup shock, my system runs more quietly and with less wear over time. In my experience, that makes the ICM870 32A Soft Start a smart upgrade for safer operation and long-term performance.

My Buying Guides on Icm870 32a Soft Start

What I Look for First

When I consider the ICM870 32A soft start, I first check whether it matches my motor or compressor requirements. I want to be sure the unit can handle the startup current and reduce the inrush load without causing nuisance trips. For me, compatibility is the most important starting point.

Why I Choose a Soft Start

I prefer a soft start because it helps reduce stress on my electrical system and connected equipment. It can make startup smoother, protect components, and sometimes improve the overall lifespan of my motor-driven devices. I also like that it can help lower the sudden power surge when equipment turns on.

Key Features I Compare

When I compare options, I focus on:

  • Current rating and whether 32A is enough for my setup
  • Voltage compatibility with my system
  • Ease of installation
  • Build quality and durability
  • Protection features such as overload or fault handling

I always make sure the model I choose fits my application instead of just buying based on the name alone.

Installation Considerations

I pay close attention to installation requirements before I buy. I want to know if I can install it myself or if I should hire a qualified technician. I also check wiring space, mounting options, and whether I need any extra accessories. For me, a product is more valuable when it is straightforward to set up correctly.

Performance Expectations

I expect a good soft start to reduce startup shock and make the equipment run more smoothly at startup. I look for consistent operation and reliable performance over time. If I am using it in a demanding environment, I want confidence that it can handle repeated starts without issues.

Safety Matters to Me

Safety is a major factor in my buying decision. I make sure the unit is suitable for my electrical system and that I follow all installation guidelines. If I am unsure about wiring or load requirements, I prefer to consult a professional rather than risk damage or injury.

Value for Money

I do not always choose the cheapest option. Instead, I look for the best balance of price, reliability, and features. In my experience, spending a little more on a dependable soft start can save me trouble later with repairs or replacements.

My Final Buying Advice

If I am buying the ICM870 32A soft start, I make sure it matches my equipment, supports my electrical needs, and offers dependable protection. I also check installation requirements and overall quality before deciding. For me, the best choice is the one that delivers smooth starts, reliable operation, and peace of mind.

Final Thoughts

I’ve found that the Icm870 32a Soft Start is a practical solution for reducing startup stress and improving overall system performance. My key takeaway is that it helps protect equipment, supports smoother operation, and can extend the life of connected components. For me, its value comes from the balance of reliability, efficiency, and easier starts in demanding applications.

Author Profile

Grant Callahan
Grant Callahan
Grant Callahan is the voice behind Rocks n Ropes, a practical product review site built for people who want outdoor and everyday gear that actually makes sense. Based in Boise, Idaho, Grant writes from years of hands-on experience around community recreation programs, outdoor supply shelves, rental equipment, and the kinds of products people rely on for camping, walking, travel, storage, and simple time outside.

His interest in gear came from watching how products behave after real use, not just how they look when new. Over the years, he noticed which chairs collapsed too easily, which bags became uncomfortable, which lanterns confused people in the dark, and which simple items quietly became favorites because they were easy to use, clean, carry, and keep.

At rocksnropes.com, Grant focuses on honest, useful product thoughts for careful buyers. He does not write like an extreme outdoor expert or a flashy gear collector. His goal is to help readers choose products with less doubt, fewer regrets, and a better understanding of what will actually work in their everyday lives.