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SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1
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SoftStartRV

SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1

Part Number: SSR54FR
120 Reviews | 146 Questions
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$289.14
 RV AC Soft Start
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softstartrv rv ac soft start hardwired for single zone air conditioner setup - qty 1
softstartrv rv ac soft start 30 amp hardwired ssr54fr
softstartrv rv ac soft start single for zone air conditioner setup - qty 1
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softstartrv rv ac soft start hardwired single ssr54fr
softstartrv rv ac soft start hardwired for single zone air conditioner setup - qty 1
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2015 heartland rv sundance fifth wheel ac soft start softstartrv hardwired for single zone air conditioner setup - qty 1
2015 heartland rv sundance fifth wheel ac soft start softstartrv hardwired single ssr54fr
2015 heartland rv sundance fifth wheel ac soft start softstartrv 30 amp hardwired ssr54fr
2015 heartland rv sundance fifth wheel ac soft start softstartrv single on a vehicle
2015 heartland rv sundance fifth wheel ac soft start softstartrv 30 amp hardwired on a vehicle
2011 forest river flagstaff classic super lite travel trailer rv ac soft start softstartrv 30 amp hardwired ssr54fr
2011 forest river flagstaff classic super lite travel trailer rv ac soft start softstartrv hardwired for single zone air conditioner setup - qty 1

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SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1 customer photo
SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1 customer photo
SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1 customer photo
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Reduce your RV air conditioner startup power demand by up to 70 percent and eliminate that loud, clunking compressor noise. Start and run your AC and other appliances without the fear of tripping a breaker or overloading your generator. Great Prices for the best rv ac soft start from SoftStartRV. SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1 part number SSR54FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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SoftStartRV RV AC Soft Start - SSR54FR

  • 30 Amp
  • Hardwired
  • Single AC
  • SoftStartRV
  • No Surge Protection

Reduce your RV air conditioner startup power demand by up to 70 percent and eliminate that loud, clunking compressor noise. Start and run your AC and other appliances without the fear of tripping a breaker or overloading your generator.


Highlights

  • Quiet, Reliable Starts: Lowers air conditioner startup demand by up to 70% for smoother, quieter operation.
  • No More Loud Compressor Noise: Eliminates the clunk and shaking when your RV air conditioner kicks on.
  • Prevents Breaker Trips: Start and run your AC and appliances without overloading your generator or tripping a breaker.
  • Generator and Appliance Friendly: Run your AC on small generators, household outlets, or with other small appliances.
  • Simple, Vertical Mount Install: Pre-wired with pre-drilled holes and 3M adhesive for easy vertical mounting.
  • Built-In Diagnostics: Three LEDs show operation status and alert you to faults for easy troubleshooting.

Features to know about

Why Use a Soft Start for Your RV?

A soft start device reduces the initial inrush current when your AC compressor kicks on. Instead of a harsh power spike that can trip breakers or overload generators, the soft start gradually ramps up the motor, so you can use your air conditioner with small generators, limited hookups, or even a 20-amp household outlet.

Stay Cool Without the Surprises

Tired of your AC tripping the breaker or waking you up with a loud, clunking start? SoftStartRV makes startup quiet and smooth, so your RV stays comfortable and your sleep stays undisturbed, even when you're boondocking or sharing power with appliances.

More Campsites, More Freedom

Run your air conditioner on a small generator, 20-amp outlet, or use two soft starts to power two ACs on a 30-amp hookup. Keep your coffee maker, water heater, or other appliances running at the same time without fear of tripping a breaker or losing your cool, even at high altitudes.

Extend the Life of Your AC

By smoothing out every start, this soft start limits strain on your AC's motor and compressor, helping prevent wear and keep your system reliable for the long haul. The built-in start capacitor and bypass contactor help ensure safe operation and prevent overheating.

Quick Installation

Installs vertically using pre-drilled holes and 3M adhesive backing. All the hardware you need is included. Three diagnostic LEDs show you system status and make troubleshooting easy.

Adventure-Ready Durability

This soft start is IP65-rated against dust and water spray, and made to resist vibration and flames. Tested for more than 45,000 hours of use, it's ready for road trips, off-grid campsites, and wherever your travels take you.

Specs

Electrical Specifications:

  • Application: single-phase air conditioner units
    • 110V: 1 - 1.5 HP
    • 220V: 1 - 3 HP
  • Power consumption: less than 3 watts
  • Nominal working voltage:
    • 110V (90 - 135 VAC);
    • 220V (187 - 266 VAC)
  • Maximum continuous current: 18 amps
  • Current consumption: 48 milliamps
  • Maximum surge current: 170 amps
  • Operation hours: 45,000+ hours

Environmental Specifications:

  • Working temperature: -40°F to 185°F (-40°C to 85°C)
  • Enclosure rating: vibration, flames, and IP65 (dust-tight, water-resistant)

Dimensions:

  • Length: 5-1/2"
  • Width: 2-7/8"
  • Depth: 2"

General:

  • Mounting: vertical, pre-drilled holes and 3M adhesive included
  • Warranty: 2-year limited


JP-M71E-PE11 SoftStartRV AC Soft Start for RVs - Vertical Mount

Installation Details SSR54FR Installation instructions





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Customer Satisfaction Score:

Ratings & Reviews

4.7

120 reviews
5 Stars
(101)
4 Stars
(13)
3 Stars
(2)
2 Stars
(2)
1 Star
(2)
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by:
So easy to install and the technical backup that I called with a question was top notch. The pix show where I mounted the SoftStart on the side of the AC Unit.
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Etrailer Expert

Kate F.

5/6/2026

Nice to have that little battery power pack to help with the start-up surge William. What kind of camper is this on, and what trip are you looking most forward to this year?

by:
I can now run my 13,500 BTU Air Conditioner on one 2200/1700 Inverter Generator. The peak amp draw was reduced 47% from 22.54 amps before installation to 13.46 amps after installation. The instructions for my particular model were a tad confusing but RVSoftStart has great customer support and responded quickly to answer my questions.
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by:
Installed this on our Grand Design 22MLE's 30 amp GE Heat Pump.
I sent a picture of the GE's wiring diagram to SoftStartRV's *tech support and
soon received an e-mail from Danny that he would be calling me soon. Within
minutes he called and explained the installation. While on the phone he did
a scymatic and e-mailed it to me.
I installed the SoftStartRV that afternoon within an hour.
I tested it at first on mt 30 pedestal here at home and it was noticeably quieter.
Then I hooked up our Craftsman 2500 watt generator and ran the heat pump
for over an hour. It worked perfectly.
A side note... I recommend opening up the A/C's control box and replacing the
Wago connector with wire nuts and tape if you haven't already.
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by:
This is our second motorhome that we have added the Soft Start. It has allowed us to use the AC without the need for a 30amp outlet. Very beneficial when visiting with friends or relatives that only have a 15 or 20amp connection. The installation instructions were detailed and easy to follow.
by:
Working fine 1 year later. The only thing was their wiring procedure and hardware needed to be cleaned to look more in compliance with industry wiring standards.
Brian profile picture

Brian

8/27/2026

working as advertised

by:
Very nice quality product. Installs fast and easily and i tested it before and after using my watchdog app. This works great with my ac unit and now allows me to run the ac off of my generator. Very pleased with the product and very happy with the staff at etrailer who helped me find the right size for my unit!! Highly recommended.
by:
This is a great product. It helps run our ac so efficiently, I forgot we had it on. No more dimming of lights or fear of tripping the breaker or pulliing too much from our surge protector. If you are good with doing minor electrical repairs, you can do this on your own.
by:
Great product..easy installation and works great.
by:
Great product. Downloaded instructions from SofStartRV. Followed step by step. Everything worked perfect. Compressor startup is very quiet, almost undetectable.
by:
Easy to install and works great in my trailer
by:
Great device and awesome install support from SoftstartRV.
by:
One of the best and reliable places to buy from...easy ordering and very fast shipping. Pricing is great also...you can't go wrong with ordering from etrailer...
by:
Now I can run my Dometic air conditioner with one Honda EU2200i generator and it does it effortlessly. Should have done this sooner.
by:
Very fast shipping. Easy installation. Works as advertised. Even works when running generator.
by:
The soft start kit was exactly what we needed for our van’s ac that was installed without it. Originally the air conditioner came with the soft start kit, but the installer said it was not needed. He was wrong because our AC would shut off after cycling. The soft start kit solved the problem.
by:
So glad I purchased. LOVE what it does. A bit of comfort on the unbearably hot days. Not too difficult to install if you can watch some online videos. You need to know how to crimp wires
by:
As always etrailer delivers on time. I installed the SoftStart on my 2020 Palomino HS 1803 truck camper yesterday. I'm an avid DIYer and not that young, so limiting trips up and down the ladder was alleviated by putting everything I might need in a toolbox. Installation took me about an hour, with the Dometic instructions and a YouTube video of installation on a Dometic. Mine is a 13.5K and I have a Generac IX 2000, 2200 starting watts. It would kick out the overload before the SoftStart.

I tried it with the full power switch on, the generator grunted and sped up for a second or two and the AC was running! I tried it on ECO mode and it kicked out the overload, but that was expected. I ran it for a half hour, switching the AC off occasionally, it started fine each time.

Success! I was looking at a bigger generator, and with a truck camper there is no way to haul it, and I can't lift 100#. The Generac weighs about 50#, about my limit, and fits nicely on the floor of the back seat of my pickup. I'm a boondocker whenever I can, and I avoided trips on hot summer days. No more!
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by:
Easy to install. Works well
by:
Easy install. Instructions are set up for ease of wiring but I found that I could eliminate a good deal of extra wire by just looking at the wiring schematic and wiring direct to the compressor instead of bouncing back and forth as per the instructions...I understand they most likely wrote it that way to simplify it, but not necessary. Functions great after a year. I installed it to run my main RV AC unit (15k) off of a 1800W inverter generator after having no power for a week following a hurricane. Even that small generator can handle the load with no problem without bogging down or tripping the EMS on low voltage.
by:
Easy installation. Cut power usage by 60%
by:
Joanne helped solidify my selection then made sure it was what I needed. I needed the Softstart by a specific date. Etrailer got it to me by the date they said it would come that is not always the case with products as I live on an island. Joanne let me know the product went out that day and has kept in touch. We watched the videos and some found instruction for the wiring of my model SoftStart and air conditioner and got it installed. It is comforting to know that if we had gotten stuck we could have call tech support for help.
by:
The soft start did exactly what Id hope for ----Did not like packing around my 3 KW watt honda gen --too heavy. Gave it too my daughter and son in law ---now that my AC will run on a 2200 watt honda. The installation is a snap --even though I'm a electrician---any one who can read and is not color blind can pretty much get this install knocked out. ps---we still love all our American friends --
by:
I was concerned about installing this myself, but it really was as easy as everybody says. The only issue I had was not paying enough attention to which wire end to crimp on. But they did send enough to still make it work. Used it for our first camping trip this weekend and it worked great! Wife said the ac was quieter. Buy this now instead of waiting like we did!
by:
works better than expected. easy to install.
by:
Awesome tech and troubleshooting support
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See what our Experts say about this SoftStartRV RV AC Soft Start

Do you have a question about this RV AC Soft Start?
  • Is Start Capacitor Needed For Furrion 15k Btu AC FACR15HESA-BL-AM
    Hey David, Yes, a soft start can be installed on the Furrion FACR15HESA-BL-AM - which on our site is the Furrion Chill HE # FR86PR. The one we offer and customers have had great results with is the SoftStartRV Soft Start for Single Zone Air Conditioner Setup # SSR54FR.
    view full answer...
  • Will Soft Start Kit for Coleman-Mach RV Air Conditioners Fit Mach 15 38009-0650 and 38209-0650
    Hey Mike! The Soft Start Kit for Coleman-Mach RV Air Conditioners # CM56RR is designed to work with 45000, 47000, and 48000 air conditioners. Based on those numbers I'm assuming you those are 38000 series, but the model number doesn't always line up with the series. If you can confirm you have the 45000, 47000, or 48000 it will work. Otherwise, I would use the SoftStartRV Soft Start for Single Zone Air Conditioner Setup # SSR54FR which is compatible with those AC units. What kind of...
    view full answer...
  • What Soft Starts Can I Use With The Dometic Brisk Air II On My RV?
    I do not recommend using the soft start from a Coleman air conditioner on your Dometic Brisk Air II. You want to use a product which has be test to function properly on your AC like the SoftStartRV Soft Start # SSR54FR or a Dometic Soft Start. I have included the wiring instructions for the SoftStartRV in an image below.
    view full answer...
    Image 1 for
  • Recommended Smartstart for a Dometic Brisk Air Conditioner
    The only type of Smartstart set up we have for a Dometic Brisk Air Unit is the SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR. It'll accomplish the same thing by reducing the amps needed when your AC kicks on. You'll just need to wire it in. If you have a dual zone system you'll need the SoftStartRV Soft Start for Dual Zone Air Conditioner Setup item # SSR44FR. I have linked a diagram below so you can see how to get it set up. If you have any additional questions...
    view full answer...
  • What Soft Start To Use With Dometic AC Unit
    Hey Jason, thanks for getting in touch. For a Dometic AC unit I recommend the SoftStartRV Soft Start for Single Zone Air Conditioner Setup # SSR54FR. This is a universal soft start, and it is known to work with the Dometic units. The chart below shows an example of the results you can expect. Your camper is a single zone? Or do you have more than one AC unit running off the same controller?
    view full answer...
  • Recommended Soft Start for a Furrion AC Unit
    It sure is Barry! The SoftStartRV Soft Start item # SSR54FR is exactly what you need for a Furrion AC unit. It'll lower the amps required during startup so you can run other appliances at the same time or power your Grand Design off of a generator. The SoftStartRV item # SSR54FR is a standalone unit that will be hardwired into your Furrion AC. I have attached the wiring diagram below so you can see how to get it set up. What has you looking at installing a soft start? Are you using...
    view full answer...
  • Soft Start Kit to Use on RV with 3 AC Units
    Hey Joe, thanks for reaching out! The SoftStartUp Plug-In Soft Start for RVs # SSR64FR will work for 2 AC units, so if you only plan on booting up 2 of them then you'll be fine. If you're wanting to use all 3 ACs then I recommend installing the Soft Start for Single Zone Air Conditioner Setup # SSR54FR as well as the Kit # SSR44FR so you have a Soft Start for each AC unit. Since these are a permanent installation you won't have to remember to plug them up prior to starting up your AC kits.
    view full answer...
  • Can the SoftStartRV Soft Start Be Used on a Furrion A/C
    The SoftStartRV Soft Start # SSR54FR was designed and tested for all RVs and motorhomes. So you are correct that it can be used for a Furrion A/C as long as it is a single zone A/C. Some of the Furrion models already have a start capacitor. If you are unsure of your Furrion, you can provide me with the model number of your A/C and I would be happy to look into it for you.
    view full answer...
  • SoftStart for Furrion Chill RV AC Unit 13.5k BTU Unit
    Hey Hayato, the SoftStart kit part # SSR54FR that you referenced would be what you are looking for. This is compatible with the Furrion AC unit you have now and will do a great job reducing amperage draw when firing up the AC unit! How do you like the Brinkley?
    view full answer...
  • 30 Amp Surge Protector With Replaceable Module
    Hey Michael! Since you were looking at the SoftStartRV Soft Start # SSR54FR are you wanting that built in as well? The Active Controls ActiveStart Plug-In Soft Start for RVs # AS94FR is a soft start and surge protector all in one. If you aren't looking for the soft start functionality, I recommend the Portable Power Watchdog Surge Protector # HU67FR. The Watchdog features an automatic shutoff for additional protection. If voltage gets too low or too high it will cut power to keep everything...
    view full answer...
  • Recommended Soft Start for a Coleman Mach 3 Plus RV Air Conditioner 38203-066
    Hey Kyle. I can confirm that the Soft Start Kit for Coleman-Mach RV Air Conditioners item # CM56RR does not work with the Cole-Man Mach 3 Plus 38203-069 AC. Instead, you'll need the SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR. The SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR is going to provide a comparable voltage boost by reducing startup draw by up to 70%. However, it will need to be hardwired into your Cole-Man's wiring....
    view full answer...
  • Best Soft Start Kit for a Dometic Brisk II 15K BTU AC in a Winnebago Minnie
    Hi Scott, yes, the SoftStartRV part # SSR54FR is the correct soft start kit for your setup. Based on your model number B59516.711J0, you have a Dometic Brisk II 15,000 BTU unit, which is a standard single zone rooftop AC and a perfect match for that kit. I’m really glad you included all that detail because it helps make sure you get this right the first time and avoid any install headaches. The SSR54FR is designed for single AC systems like yours and works well with Dometic units in the...
    view full answer...
  • Can SoftStart SSR54FR Be Used on 2016 Forest River Cherokee Greywolf 26DBH
    Hey Timothy, yes the SoftStartRV part # SSR54FR is the correct start capacity you can use on the AC unit of your 2016 Forest River Cherokee Greywolf 26DBH. This will take out 70 percent of the power demand when the AC unit is firing up as well as will allow it to start up without the loud clunking noise.
    view full answer...
  • What Soft Start Is Recommended For The Furrion Chill HE RV Air Conditioner System FR95TD
    Hello art, thanks for reaching out. We do have a soft start that will work with the Furrion Chill HE RV Air Conditioner System # FR95TD. For that I recommend the following: - SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1 # SSR54FR What kind of camper are you using this in?
    view full answer...
  • Is There A Soft Start For The Dometic FreshJet 5 With Heat Pump FJX5557EHPWHCS?
    Hey Barry, thanks for reaching out. Yes, there is a soft start that works with your Dometic FreshJet 5 with Heat Pump # FJX5557EHPWHCS. I recommend the SoftStartRV Soft Start for Single Zone Air Conditioner Setup # SSR54FR. It's compatible with electronically controlled rooftop units like your FreshJet 5 and works with heat pump models as well. A soft start doesn't change how your air conditioner runs once it's operating, but it makes a big difference during startup. It gradually ramps...
    view full answer...
  • Replacement Taillights with Backup Lights for KOMO Carrier
    Hi Ken, we have exactly what you need. KOMO uses the standard 6-inch trailer lights on their carriers, so an LED taillight with red running lights, turn signals, brake light and white back up lights, I recommend going with the Optronics Fusion LED taillight part # OPT47NR. This is a cool looking light at a great value that will be a direct replacement for the lights that come on the carrier. If value is more important to you than looks, then Optronics also has part # OPT57NR that is a...
    view full answer...
  • Recommended Soft Start for a Furrion Chill HE Air Conditioner Unit
    Hey Richard, thanks for the information. It looks like you have a Furrion Chill HE Air Conditioner Unit like item # FR26PR. To add a soft start to it you'll need the SoftStartRV Soft Start for Single Zone Air Conditioner Setup - Qty 1 item # SSR54FR. This is a standalone unit you install inline with the AC unit. I have attached the wiring diagram below so you can see how to get it set up. What region are you using your AC in and have you cleaned off the vents recently?
    view full answer...
  • Recommended SoftStartRV Kit for a 2022 Forest River Rockwood Geo Pro
    The Start Capacitor for Advent Air RV Air Conditioners # ACMSCKIT is specifically for Advent ACs and is not going to work with your Advent AC - you'd need to use the SoftStartRV Soft Start for Single Zone Air Conditioner Setup # SSR54FR which is a universal kit.
    view full answer...
  • Will The SoftStartRV Soft Start SSR54FR Work On A GE AC Unit?
    Hey Bill, thanks for reaching out! Yes, the SoftStartRV Soft Start # SSR54FR is compatible with the GE Profile A/C on your Brinkley 4100. It will reduce the startup surge by allowing the compressor to ramp up gradually instead of kicking on all at once. While I can't guarantee it will completely eliminate the "thump" you're hearing, many customers notice a much smoother, quieter startup after installing a soft start. As an added benefit, it also reduces the inrush current, making it easier...
    view full answer...
  • Recommended Soft Start for a Cole-Man Mach 10 35203-0792
    Welcome back Vincent. I have an alternative but unfortunately the Soft Start Kit for Coleman-Mach RV Air Conditioners item # CM56RR does not work with the Cole-Man Mach 10 35203-0792 AC. Instead, you'll need the SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR. The SoftStartRV Soft Start for Single Zone Air Conditioner Setup item # SSR54FR is going to provide a comparable voltage boost by reducing startup draw by up to 70%. However, it will need to be hardwired...
    view full answer...
  • What Can Prevent RV AC from Overdrawing Generator
    Hey Martin, so the easy solution is to install the SoftStart RV part # SSR54FR which allows your Furrion RV AC unit to kick on without the massive power draw all at the same time so your generator can keep up. It does this by having a built in capacitor as well as staggering the startup of all of the components in the AC so that the spike in power draw is spread out pretty far.
    view full answer...
  • Recommended Soft Start For Camper with 50 Amp Shore Power Hook Up Also Using 30 Amp Generator
    Hey Robert, that's going to depend on how your Generator is powering your RV. If your generator is just plugging in to the shore power port on the camper with an adapter, then you'll want the 50 amp soft start # SSR64FR that plugs in between the camper and the shore power cord. This will work when you're plugged into the pedestal at your camp site, and will work when your generator is plugged into the shore power plug. If you have an onboard generator it gets a little tricky. I'd need...
    view full answer...
  • Soft Start for Furrion FACR15HESA-BL
    Hey Leif! Thanks for providing that model number. The correct soft start for your Furrion FACR15HESA-BL is the SoftStartRV Soft Start for Single Zone Air Conditioner Setup # SSR54FR. This will lower the startup demand by up to 70% and help extend the lift of your motor and compressor. What kind of RV or trailer do you have?
    view full answer...
  • SoftStartRV Soft Start for Duo Therm AC Model 991760308
    Hi David, Yes, the SoftStartRV Soft Start for Single Zone Air Conditioner Setup, part # SSR54FR, is the one I would recommend for your Duo Therm AC model 991760308. It is one of our more universal soft start options and is designed to reduce the air conditioner’s startup power demand by up to 70 percent, which can make starting the AC on limited power much easier and also reduce the loud clunk when the compressor kicks on. It has a prewired design with predrilled mounting holes and 3M...
    view full answer...


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