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Frigidaire 15,100 BTU Window-Mounted Room Air Conditioner

Model # FFRE1533S1

 4.5 out of 5 (276 Reviews)

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General Specifications
Warranty 1 Year Full/5 Year Sealed System
Shipping Weight (lbs) 120
Window Height 18-1/2"
Reconditioned No
Annual Cost(.12 / kWH) 115
Window Width 28" - 40-1/2"
Max Wall Thickness 8"
Refrigerant R410a
Power Type Electric
Size N/A
Installation Type Window Mounted
Collection Frigidaire
Electrical Specifications
Voltage Rating 115V 60Hz
Power Cord Length 5' (6')
Watts (Cool) 1275
Plug Type LCDI 5-15P
Horsepower (Cool) 1.72
Amps (Cool) 11.5
General Specifications
ProductLaunch NA
BrandFamilyFrigidaire Yes
BTU (Cool) 15100
Dehumidification - Pints/Hr 3.8
Energy Efficiency Ratio 11.8
Combined Energy Efficiency Ratio 11.8
Cool Area (Sq. Ft.) 850
Performance Certification AHAM
Control Type Electronic
Control Location Center
Sleep Mode Yes
Dimensions: Exterior
Cabinet Height 17-7/8"
Cabinet Depth 24"
Cabinet Depth (w/ Front) 25-3/8"
Filter Check Yes
Charge - ozs 28.22
Clean Air Ionizer Yes
Noise Level dB (Low) 52
Fan Speeds - Cool 3
Air CFM (Med) 308
Filter Type Easy-to-Clean Washable Filter
Fan Speed - Fan - General 3
Air CFM (High) 353
Air Direction Control 8-Way
Fan Auto Yes
Rear Grill Yes
Motor RPM (High) 1080
Motor RPM (Low) 890
Remote Control Full Function / Remote Thermostat
Filter Access Tilt-Out
Cabinet Louvers Yes
Motor RPM (Med) 990
Noise Level dB (High) 56
Fresh Air Yes
Energy Saver Yes
Low Voltage Start-up Yes
Window Mounting Kit Pleated Quick Mount
24-Hour On/Off Timer Yes
Exhaust Vent Yes
Slide-Out Chassis Yes
Noise Level dB (Med) 53
Vents Closed Yes
Air CFM (Low) 250
Dimensions: Cut-Out
Width 23-11/16"
Included Accessory Pleated Quick Mount Window Kit
Certifications & Approvals
CSA Listed No
ADA Compliant - All Brands No
UL Listed Yes
ENERGY STAR® Certified Yes
Safety Certification UL/CUL (SA11087)
ETL Listed No
NSF® Certified No
Exterior Dimensions
Height 17-7/8"
Depth 25-3/8"

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out of 5 (276 Reviews)

89% of reviewers recommend this product.

Works Great... when it works.

Submitted by D9sus4 - 7/26/2020

I purchased this unit, and the matching 12,000 BTU unit 2 years ago.No issues for the first two summers. Blew cold air, and worked like a champ. Unfortunately, in year 3, it started blowing a dedicated 15 Amp breaker. I pulled the unit to clean the condenser. That's when I discovered that it is surrounded by a plastic shroud. I could see with a flashlight that the coils inside the shroud were covered in dirt/dust, but there was no access to that area and it's blocked by the fan. I cleaned it, but it took 5 times longer than any other condenser I've ever cleaned. Just an FYI. That shroud is was very bad design.
Originally posted on

Yes, I recommend this product


Submitted by Jeffey D - 7/16/2020

I bought the ffre15l3s1 model. Extended warranty also purchased.2days after warranty expired, unit quit working!!! Very upsetting.500.00 wasted!! No one at Frigidaire would talk to me!
Originally posted on

No, I do not recommend this product


Submitted by Rodman - 7/7/2020

I bought this unit 3 years ago and it has stoped working....This is not good.They should last 8 to 10 years...Vary disappointed
Originally posted on

No, I do not recommend this product

Awesome Air Conditioner

Submitted by PeDe - 7/2/2020

I received my new Air Conditioner after the old one was not repairable. I had a great experience with customer services representatives that helped me through the process. The air conditioner performs exactly the way we expected. Thank you for such a good appliance.
Originally posted on

Yes, I recommend this product

Doesn't last long

Submitted by Davisss - 6/17/2020

I bought this unit 2 years ago, and it's already far less cool Almost a waste of time to turn it on if it's hotter than 90 outside It blew ice cold the first few monthsNo one will charge it, they all says it's junk and just throw it away like a bic lighter
Originally posted on

No, I do not recommend this product

Great features

Submitted by RDJ66 - 10/17/2019

Bought unit to replace one that I had for 10 years. The old was a Frigidaire like this one. I have had this one a month so far and it is doing great.
Originally posted on

Yes, I recommend this product


Submitted by JBlock - 9/6/2019

After some issues with our central unit, we decided to get this one as a cheaper alternative. It is working fantastic! Love the filter change alert. Using the econ mode and auto fan, it didn't do much of a difference to our electric bill. Super happy!
Originally posted on

Yes, I recommend this product

Outstanding all around!

Submitted by Ricky58 - 8/29/2019

I need something to air condition my place and this unit does the job with no problem at all! The feature are great! Remote works like a charm, I can have it maintain the temperature where I am sitting with the remote with the remote sensor on.Extremely happy that I purchased this unit over the other air conditioners I researched.
Originally posted on

Yes, I recommend this product

Doesn™€™t work as well as it first did

Submitted by Shauna86 - 8/27/2019

I bought this ac the first week in July, but by the third week, it stopped working as powerfully as it first did. It sometimes gets the job done
Originally posted on

No, I do not recommend this product

my room air conditioner

Submitted by neworleanslady1959 - 8/17/2019

I really love my Frigidaire window air conditioner. It keeps my room the perfect temperature. And is so very quiet, can't even here it running. Worth the money I paid for it. It was a fantastic buy.
Originally posted on

Yes, I recommend this product

AC product coverage

Submitted by Kangaroo - 8/15/2019

I recently bought this unit and the remote malfunctioned. I let Frigidaire know and got a new replacement, promptly. Now everything works great
Originally posted on

Yes, I recommend this product

Heat relief

Submitted by Lnshark - 7/27/2019

We've had this unit a little over a month...just in time for heat advisories as temps ran into the 90's...keep our 2 and a half rooms refreshingly cool!!
Originally posted on

Yes, I recommend this product


Submitted by VIRGINIAROSE - 7/6/2019

Only thing I can't figure out is how to open the front to clean the filter! How do I get help for this??
Originally posted on

Yes, I recommend this product

Beating Chattanooga Heat!

Submitted by JerryVH777 - 7/3/2019

I live in a small one bedroom apartment in downtown Chattanooga. The building was built in 1929. It has very thick brick walls, and the windows are original metal frames with plate glass. Summers here in Chattanooga get very hot & humid. I have an old 10,000 BTU window unit in my bedroom which does a pretty good job with that 175 sq ft room. I had another 10,000 BTU window unit to cool the remaining 475 sq ft of my apartment, and it never stood up well to our hot summers. It finally died, and I wanted to make sure I replaced it with a unit strong enough to keep me cool through a long hot summer. The building maintenance man asked that I get a unit that will run on a 115v line. This unit with 15,100 BTU was the highest BTU rating I could find that would run on 115v. That wasn't enough to make a decision; I also read a lot of reviews. I read many reviews on this unit, and other 15k BTU units by this, and other brands. Price was also a factor in my decision. This model had good reviews, and it was available for a great price. Installation took a few hours partly in just making sure to carefully follow the instructions; and partly to make adjustments to install into a metal frame window with a hard concrete window sill. I've had the unit installed now for going on 2 months. I got my first electric bill for a full month of it's use. Even though it's a more powerful unit than the one it replaced; I'm staying cooler, and I'm using about 13% less electricity compared to the same month last year. Today the heat index outside is 99º, and I'm keeping cool inside at 71º. I'm very very pleased! Remote sensor is cool too. Word of advice: If you live in a hot humid environment like my home in Chattanooga, and you like your home chilly cool, don't trust the recommended BTU guidelines when buying a unit. Go up a range, or two. If I followed guidelines I might have just gotten a 12k BTU unit, and I doubt it would have been powerful enough to get me the cool 71º I have today with the intense heat outside.
Originally posted on

Yes, I recommend this product


Submitted by BigAnt - 6/18/2019

I bought my AC unit 2 yrs ago...and its been working fine. in dallas,Tx so it gets hot and humid...what should i set my 800 square ft living room temp to? And should i have vent closed fresh air or open to make my living room cold. ?
Originally posted on

Yes, I recommend this product

Dead after 30 days of use and out of warranty.

Submitted by Anthony Boro - 6/6/2019

Bought and installed this air conditioner in 2017. It has probably no more than 30 days of use and the first time I turned it on this year the fan bearings are shot. Frigidaire offered to replace the part but not the service. I would have to bring the unit that weighs over 100lbs to a service center and pay for diagnosis and labor, which could very well be close to what it would cost to buy a new unit.
Originally posted on

No, I do not recommend this product

Nice AC

Submitted by cowboysup - 4/30/2019

The House and this AC is Cold now. The cost is a little high but worth it..
Originally posted on

Yes, I recommend this product

Too loud

Submitted by mls10023 - 4/20/2019

It cools but it is SO LOUD. I need something much quieter for our bedroom at night
Originally posted on

No, I do not recommend this product


Submitted by BENNYR49 - 4/12/2019

Originally posted on

Yes, I recommend this product

It cools great for my large bedroom

Submitted by gailie56 - 10/18/2018

I bought this at one of the hottest times of the year here in Louisiana.I does the job and is quiet.
Originally posted on

Yes, I recommend this product

Great directional control.

Submitted by Kody - 10/9/2018

Great ac, cooler and less expensive to run than the 18000 bu Panasonic it replaced. Thank you!!!
Originally posted on

Yes, I recommend this product

.Nice unit!!

Submitted by Cowpoke - 10/8/2018

Works great so far!! Was easy to install and is quiet for a window unit.
Originally posted on

Yes, I recommend this product

Very quiet.

Submitted by mw93 - 10/1/2018

Bought this to replace same model that got black mold in the fan compartment. I couldn't clean it all so I replaced it. I sprayed the new one with a mold killer. Hope this one doesn't get it too.
Originally posted on

Yes, I recommend this product

Lives up to all expectations.

Submitted by Roosie - 9/26/2018

We bought this as a back-up unit for our central unit. We have a whole house generator for when the current goes out but the central unit puts a strain on the generator so this unit will cool 2 rooms where I will be on oxygen 24/7 if the current goes off.
Originally posted on

Yes, I recommend this product

Great for space

Submitted by CorpMod - 9/26/2018

We bought this unit for our small warehouse office. It doesn't cover our entire office so we have to have other fans going in the back part of the office. I can say it seems energy efficient as our electricity bill didn't change much.
Originally posted on

Yes, I recommend this product

Great A/C

Submitted by jo2002 - 9/24/2018

This A/C works great cools off a large area and has great features.
Originally posted on

Yes, I recommend this product

Love it

Submitted by Clue48 - 9/16/2018

We replaced our 15000btu unit with this one two months ago and are thrilled. This unit is MUCH quieter than our old unit, and still blows strongly! We have been able to set the thermostat at a 75 instead of 78 and still save money over what we were paying with our old unit.
Originally posted on

Yes, I recommend this product

Well pleased, overall. Cools well.

Submitted by Joankessel - 8/27/2018

Outside cabinet slightly bent, but still able to install. Since it is installed in our weekend shore home, has not had too much use.
Originally posted on

Yes, I recommend this product

Even room temperature control

Submitted by RED11 - 8/25/2018

This A/C cools down my 15 x 30 space quite nicely. The remote control unit features an option to control desired temperature at the remote controller - which is beside the user - nice feature!
Originally posted on

Yes, I recommend this product

Works well, quiet operation

Submitted by j l b - 8/22/2018

Working well since purchased a month ago. I am curious if it will last as long as my previous unit, 9 years, made by a different company. The installation instructions were clear and easy to follow. I did have to grind down the bottoms of window support brackets to clear the window ledge. One of the cabinet seals was damaged when the chassis was put into the cabinet at the factory.
Originally posted on

Yes, I recommend this product

Not impressed!

Submitted by SKInis - 8/20/2018

I have had this New air conditioner for 1 1/2 months during a serious heat wave. The unit is suppose to cool 850 feet, which is the size of my open loft style dining room & living room. I have to have the unit on 60 for at least 3 hours to get only half of the space cool ( not cold). I was expecting much more for the price and size!!!
Originally posted on

No, I do not recommend this product

Works great

Submitted by Maldino - 8/18/2018

I bought this for my house (3 Bedroom house) and it works great!!
Originally posted on

Yes, I recommend this product

Great air conditioner

Submitted by Happy Mark - 8/18/2018

Needed to cool down very big master bed room.This unit it does it quickly and keeps it cool all night.
Originally posted on

Yes, I recommend this product

Awesome ac

Submitted by Chris4321 - 8/16/2018

I have used ac for about 1 month. It cools my whole 1st floor. Aprox. 700 sq ft.
Originally posted on

Yes, I recommend this product

Nice A/C Unit

Submitted by AR23 - 8/15/2018

We got this unit to cool the back of our house (3 rooms) and it keeps up pretty well on the hot days. It's not the quietest A/C ever but overall happy with it.
Originally posted on

Yes, I recommend this product

Easy install

Submitted by Leon W - 8/13/2018

The unit performs well. However I am disappointed in the outer design. The casing has no drain port built into the AC unit. The AC depends on evaporation to evacuate all the condensation from the unit, which I do not like. Other than that, the AC performs well, cools our two room area that we required the large output for.
Originally posted on

Yes, I recommend this product

Room a/c

Submitted by Terry Levinson - 8/8/2018

Replaced a older window unit and this one Works much better than the last one
Originally posted on

Yes, I recommend this product

Keeps downstairs cool and comfortable!

Submitted by swhipple - 8/8/2018

My downstairs is 714 sq. ft. and it takes the humidity out keeping the house comfortable. It has kept up well with the space of the downstairs as it™€™s not running constantly. I also love the remote temperature sensor, so whatever room I am in I am guaranteed to be comfortable!
Originally posted on

Yes, I recommend this product


Submitted by eric 67 - 8/6/2018

i'v had this unit for one month and it's working great.
Originally posted on

Yes, I recommend this product

it cools my house with 1500 btu

Submitted by bigwolf - 8/6/2018

I bought this a month ago and I™€™m very happy with this unit it kept my 4 room very comfortable with temperature out side running 95 degrees .
Originally posted on

Yes, I recommend this product

Air conditioner

Submitted by Big Ronnie - 8/4/2018

Performance is excellent as expected from a Frigidaire product!!!
Originally posted on

Yes, I recommend this product

Best AC I've owned

Submitted by Coolnow - 8/3/2018

i bought 2 of these units. One for upstairs and one for downstairs, They keep the entire house cool and comfortable. I can use the remote to turn them off if it becomes too cold (which it sometimes does even when it's above 90 outside!). it's the most powerful AC that has a 115 plug which I needed. The only minor ploblem is that it takes a few trys to direct the air flow but that wouldn't stop me from recommending it or buying the same unit again.
Originally posted on

Yes, I recommend this product

Works well for <500 sqft <95 F

Submitted by Yenyung - 8/1/2018

I use this AC for my living room, which is a little larger than 500 sqft. It works well to keep the temperature below 85 F when the outside is blow 95F.
Originally posted on

No, I do not recommend this product

awesome cool

Submitted by pizza - 8/1/2018

this is a great unit cools my whole first floor 850Sq FT and I can time it when to go on and off best feature also A great place to buy this uint MTV&APP.
Originally posted on

Yes, I recommend this product

Great features, works great

Submitted by LadyDrow - 7/29/2018

I bought this a month ago, and am very pleased with the performance and features. I suffer from severe allergies, so I love the air purifier option on it. It cools wonderfully, and the temperature sensing remote is a great feature as well. It senses the temperature where the remote is, and the energy saving setting works from that. I highly recommend this product, works great!
Originally posted on

Yes, I recommend this product

Easy to operate.. quite operation.. fast cooling

Submitted by Cuong Tran - 7/27/2018

I bought this 3 week ago..30™€™x30™€™ master bed room.. with 15100 btu on 110v ..nice looking ..Easy to operate.. quite operation.. fast cooling
Originally posted on

Yes, I recommend this product

works really well

Submitted by porsche man - 7/27/2018

we have had some very humid weather and this a/c has no problem cooling the home
Originally posted on

Yes, I recommend this product

My Review for FFRE1533S1

Submitted by rcanada - 7/26/2018

I installed this unit in an old home window. The instruction could be improved and made a little clearer. The air conditioner works well and the remote control works very well. I choose this Frigidaire product because of the good reviews.
Originally posted on

Yes, I recommend this product

great features

Submitted by abalestrino20 - 7/25/2018

This product keeps most of our downstairs cold. It is huge and effective.
Originally posted on

Yes, I recommend this product

This seems to be a steady powerful AC unit

Submitted by Halogen Sky - 7/24/2018

With the well thought out installation portion of the included manual, and the variety of ways to secure the unit to your specific windows and circumstances, it was a breeze to replace what we had. This FFRE1533S1 has almost 1000 BTU more than what we replaced, takes up a smaller width AND height, sticks out side of our home less AND has an outside 'shroud' -- chassis-- shell-- whatever... that imparts confidence as to it's build quality. It's super easy to slide the unit in and out of the shell after install for general seasonal inspection. They call this unit a step up from consumer, as 'pro-sumer', and I agree.It hasn't made any strange noises that would indicate that it may need to 'settle in for a while' ... or be readjusted. The cool way that the air-flow can be infinitely redirected on each side AND up and down by two manual scrolling vectors is unique to me. I like it. All AC's should be like that. This AC started out quiet and still is weeks later. The 'remote sensing' feature is a plus to help the unit cool down rooms that may not be in it's immediate vacinity... granted that you leave the remote where you want it after you activate this feature!! It appears that the FFRE1533S1 will cost less to run that what we had. Nice all around.
Originally posted on

Yes, I recommend this product