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4000-CFM 3 -Speed Window Evaporative Cooler for 1600-sq ft

Ratings & Reviews for MasterCool 4000-CFM 3 -Speed Window Evaporative Cooler for 1600-sq ft

3.6
178
Review
 3.6 out of 5
178 Reviews


66% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The evaporative cooler provides effective cooling performance and efficiency, able to cool large spaces even in hot climates. Users appreciate the low operating costs and reduced utility bills compared to traditional air conditioning. However, the installation process can be challenging, with difficulties aligning and securing the back panel. Some customers also experienced issues with the control panel and remote not functioning properly. Ongoing maintenance, such as regularly cleaning the water distribution system and pads, is required to prevent mineral buildup and ensure optimal performance.

Customer review summary generated by AI, including incentivized reviews.
178 Customer Reviews

Not working after 35 days installed

Would Not Recommend

only 35 day last the motor working, I try to return it to Lowe's. and I found out that they only give 48 HOUR to return, so Basically I spent 660 dollar, so now I have to deal with the manufacturer warranty

August 19, 2026
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Response from EssickAirProducts

Hello! Thanks for taking the time to post your review. We hate to hear you had an issue with your cooler. If you’d like some help with this, please e... Read More

EssickAirProductsAugust 21, 2026

Nothing but problems

Would Not Recommend

I purchased this on Father’s Day went and picked it up put it in nothing but problems it leaked now it is August 18 and the pump doesn’t work For the price I paid this thing should still be working. Don’t buy beware trash should’ve stuck with the Bonaire like I had before.

August 19, 2026
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Response from EssickAirProducts

Hello! Thank you for your feedback, and we hate to hear about the issues you’ve experienced with your cooler.

The water leaking you descri...
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EssickAirProductsAugust 19, 2026

Runs fine! But in Vegas/desert beware.

Would Recommend

First day using the 4500. Runs fine. BUT. If you live in Vegas etc don't be fooled, it will not cool a 1600 square foot house. Possibly half of that on the hottest days like today, {maybe) 115 degrees. Our house is 1100 square feet. It"s installed in the main bedroom. The other doors are all closed. So it's blowing out straight down the hallway to the kitchen window. The hvac thermostat is in the hallway. It's been reading 83 all day. My advice get the 5900 for this climate. I gave it 4 stars ...

August 2, 2026
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Would Recommend

I got it a week ago and it works good

July 22, 2026
Verified Purchaser
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Response from EssickAirProducts

Thanks for taking the time to rate and review our product. We appreciate your business! -Melissa, Essick Air ProductsWas this Review Helpful ?

Response from EssickAirProducts

Thanks for taking the time to rate and review our product. We appreciate your business! -Melissa, Essick Air ProductsWas this Review Helpful ?

Response from EssickAirProducts

Thanks for taking the time to rate and review our product. We appreciate your business! -Melissa, Mastercool

EssickAirProductsJune 1, 2026

Pump was broke , had to get a new one.

May 29, 2026
Verified Purchaser
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Response from EssickAirProducts

Hello! Thanks for taking the time to post your review. We are sorry to hear you had an issue with your cooler. We’d like to help you resolve this, so... Read More

EssickAirProductsMay 29, 2026

Great cooler.

Would Recommend

Great cooler, keeps the house really cool and comfortable. This is our second one, first lasted many years.

May 16, 2026
Verified Purchaser
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Response from EssickAirProducts

Thanks for taking the time to rate and review our product. We appreciate your business! -Melissa, Essick Air ProductsWas this Review Helpful ?

Good

Would Recommend

I liked how easy it was to put up and start running

March 31, 2026
Verified Purchaser
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Check it before you buy it.

Open the box in the store. picked one up curbside. When we went to install it, there was no pump or hoses.

March 23, 2026
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Response from EssickAirProducts

Hello! Thank you for letting us know about this. We hate to hear that your unit was missing the pump and hoses when you opened the box — that’s defin... Read More

EssickAirProductsMarch 23, 2026

Great swamp cooler

Would Recommend

Very slim design and lots of sq footage Can’t wait to use it this summer. Upgraded from an older model.

February 12, 2026
Verified PurchaserIncentivized
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The customer service is awasome

Would Recommend

Love the cooler works great

July 28, 2025
Verified Purchaser
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Response from EssickAirProducts

Hello, Me123! Thanks for taking the time to rate and review our product. We love stars! -Melissa, Essick Air ProductWas this Review Helpful ?

Response from EssickAirProducts

Hello, Girliegirl! We love hearing from happy customers. Thank you for your business! -Melissa, Essick Air ProductWas this Review Helpful ?

Response from EssickAirProducts

Hello! Thanks for taking the time to rate and review our product. We love stars! -Melissa, Essick Air Product

EssickAirProductsJuly 2, 2025

It’s VERY efficient!

We had to replace our Master Cool and did find the same thing at Lowe’s. It is very efficient and I have often had to turn it off as it can get too cold in my small home. I wish Lowe’s carried the pads for it as I’ve had to buy direct from the manufacturer before.

June 26, 2025
Verified Purchaser
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Response from EssickAirProducts

Hello, Barbie! We appreciate you taking the time to share your thoughts. -Melissa, Essick Air Product

EssickAirProductsJuly 2, 2025