Compressor Soft Start for Your AC Unit
Reduce Power Surge, Protect Your Compressor & Improve Efficiency
When your air conditioner starts up, it draws a surge of electricity to get the compressor running. Over time, those heavy startup surges can shorten compressor life, cause your lights to flicker, and even overload home generators.
A compressor soft start device can help solve those problems for your HVAC unit. The soft start gradually ramps up power when your AC starts, reducing the inrush current by up to 70%. The result? Smoother starts, quieter operation and a longer-lasting air conditioner.
At ETR HVAC we install soft start devices for AC units across Tyler, Longview, Athens and the East Texas area. These systems help homeowners protect their systems and reduce strain on their electrical circuits.
What is a Compressor Soft Start?
A soft start is a small electrical device that connects to your air conditioner’s compressor circuit. Its job is to control how much current is sent to the compressor during startup.
Instead of a sudden surge of electricity, the soft start gently ramps up power, allowing the compressor motor to start smoothly and efficiently.
Key advantages include:
Extends compressor life by reducing mechanical and electrical stress.
Prevents flickering lights caused by high startup amps.
Protects Standby Generators by lowering the AC’s power demand during startup.
Improves overall energy efficiency and system reliability.
Watch the Soft Start In Action
In this quick demonstration, Jamie Lowe from ETR showcases the Nu-Calgon Soft Start, one of the smallest and most advanced soft start units available.
You’ll see how the startup amps drop dramatically after installation:
- Before Soft Start: 56 amps
- After Soft Start: 16 amps
That’s a 70% reduction in startup current — helping protect your AC compressor, reduce power flicker, and allow generators to run more efficiently.
Benefits of Installing a Compressor Soft Start Device
Extend Compressor Life – Reduce wear and tear from harsh electrical surges every time your AC kicks on.
Stop Flickering Lights – Keep your lights steady and electronics protected when the air conditioner starts.
Lower Power Demand – Cut startup amps by up to 70%, making your home’s electrical system more efficient.
Generator-Friendly – Ideal for homes with backup or whole-home generators — allows smoother AC startup and less strain on the generator.
Energy Efficiency & Comfort – Enjoy quieter operation and improved reliability from your HVAC system all summer long.
Perfect for East Texas Homes
East Texas homes often experience voltage fluctuations and generator use during storms and summer heat. That makes soft starts especially valuable for Tyler, Longview, and surrounding areas.
ETR HVAC installs compressor soft starts designed for most residential AC systems, including single-stage and dual-stage compressors. Our experienced technicians will help you determine if a soft start is compatible with your HVAC unit and handle the installation professionally.
Soft Start Installation & Compatibility
Soft start devices work on about 80% of air conditioners found in the East Texas area.
They are compatible with:
- Single-stage and dual-stage compressors
- Not compatible with inverter-type systems
Because every HVAC system is unique, our licensed ETR technicians will inspect your unit and recommend the best model to meet your needs.
Request a Soft Start Quote and Consultation
Want to protect your AC compressor and improve your system’s efficiency?
Contact ETR HVAC to schedule your soft start installation or to learn whether this upgrade is right for your home.
Compressor Soft Start FAQs
What does a compressor soft start do?
It reduces the inrush current when your air conditioner starts, protecting the compressor and electrical system.
Can a soft start work with a generator?
Yes. It lowers the startup load, allowing your generator to handle the AC load more efficiently and preventing overloads.
Will this reduce my energy bill?
While soft starts mainly protect equipment, they can slightly improve energy efficiency and system performance.
Is professional installation required?
Yes. A licensed HVAC technician must install the soft start to ensure proper wiring and safety.
Do soft starts work on all AC units?
No. They’re compatible with most single-stage and dual-stage compressors, but not inverter systems.
