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UN0335 109K Views
Apr 1, 2025 5:02 PM

Costco In-Warehouse: Midea U 12,000 BTU Smart Inverter Window Air Conditioner

$280

$380

26% off
(Availability May Vary)at Costco Wholesale
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Deal Details
Costco Wholesale [Deal Reference] has Midea U 12,000 BTU Smart Inverter Window Air Conditioner Unit w/ MShield (White; MAW12AV1QWT-C) on sale for $279.99 valid for in-warehouse purchase for Costco Members only.

Alternatively, if you wish to purchase this unit online, it is available for $299.99. Shipping is free.

Thanks to community member UN0335 for finding this deal

Note, must login to your Costco account w/ an active membership to purchase.

About the Product
  • U-Shaped Groove/Drop-In Install Design
  • 12,000 BTU/32 dBA/1140W
  • 4-Way Air Direction/
  • 5 Cool Setting/4 Fan Speed
  • 550 Sq. Ft. Maximum Coverage Area
  • Energy Star Certified
  • MShieled Air Ionizer Technology
  • Smart Control w/ SmartHome App

Editor's Notes

Written by Discombobulated | Staff
  • About the Deal
    • Product is available for in-warehouse purchase at the reduced/listed price; maximum of $80 Off/discount
    • Easy installation w/ snap in bracket; recommended for areas/spaces up to 550 sq. ft.
    • You may open your window to enjoy fresh air even w/ your AC installed
    • Product Item #2677429 for reference
    • Limit 5 per customer
    • Offer valid through May 4, 2025 or while promotional price/supplies last

Original Post

Written by UN0335
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale [Deal Reference] has Midea U 12,000 BTU Smart Inverter Window Air Conditioner Unit w/ MShield (White; MAW12AV1QWT-C) on sale for $279.99 valid for in-warehouse purchase for Costco Members only.

Alternatively, if you wish to purchase this unit online, it is available for $299.99. Shipping is free.

Thanks to community member UN0335 for finding this deal

Note, must login to your Costco account w/ an active membership to purchase.

About the Product
  • U-Shaped Groove/Drop-In Install Design
  • 12,000 BTU/32 dBA/1140W
  • 4-Way Air Direction/
  • 5 Cool Setting/4 Fan Speed
  • 550 Sq. Ft. Maximum Coverage Area
  • Energy Star Certified
  • MShieled Air Ionizer Technology
  • Smart Control w/ SmartHome App

Editor's Notes

Written by Discombobulated | Staff
  • About the Deal
    • Product is available for in-warehouse purchase at the reduced/listed price; maximum of $80 Off/discount
    • Easy installation w/ snap in bracket; recommended for areas/spaces up to 550 sq. ft.
    • You may open your window to enjoy fresh air even w/ your AC installed
    • Product Item #2677429 for reference
    • Limit 5 per customer
    • Offer valid through May 4, 2025 or while promotional price/supplies last

Original Post

Written by UN0335

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Top Comments

SkyeC
710Comments
162Reputation
No comment on these specific units but if you're having problems with mold on any AC, you should just turn it to fan mode for 20m or so before shutting off.

All AC's work by transferring heat from one side of the unit to the other side, as part of this process the coils on the inside of the room will be ice cold (so they can absorb the heat in the room and move it to the outside) moisture will condense on the cold coils, it will then drip down in the pan and be directed outside, that's why AC's always dribble water on the outside.

If you shut the unit off there will be a lot of moisture, all over the coils and in the pan. That moisture be food for mold in the right climates..

To avoid this, run it on the fan mode before turning it off, this will dry the unit out and avoid the mold issues
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BENJAMINB1246
296Comments
68Reputation
You do lose efficiency doing that. Most, if not all, are designed to hold a certain level/amount of water. They do this intentionally so the outdoor fan will "spray" the water on the outdoor coils, which helps with efficiency by cooling them down.
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nerds
367Comments
70Reputation
The way to avoid mold is never turn it off without running the fan a while AND never use the default energy save mode... because that turns off the fan *every time* they compressor turns off at the same time, leaving all the moisture everywhere. Leave it on auto or a specific fan speed and turn off emergy save mode always whenever use the AC. Because when it sits right after the compressor turns off, that's when all the moisture accumulates everywhere. Energy save node = grow mold inside AC.
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241 Comments

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Apr 1, 2025 6:56 PM
76 Comments
Joined Jul 2014
justinxipApr 1, 2025 6:56 PM
76 Comments
This might be a dumb question, but does this mean it will only be available in-warehouse starting 4/9? So if I went that day, I'd have a good chance at grabbing one or two of these units for this price?
1
Apr 1, 2025 7:05 PM
39 Comments
Joined Jan 2023
Musicaholic8000Apr 1, 2025 7:05 PM
39 Comments

Our community has rated this post as helpful. If you agree, why not thank

Read some reviews. People still complain of mold and it's not the easiest to disassemble. Real pain to clean the blower wheel as it's like 2ft long.
https://youtu.be/esPGXI-nVjI?si=LiFYHgfSkE__Ix-4
2
4
Apr 1, 2025 7:25 PM
29 Comments
Joined Sep 2014
arla-sdApr 1, 2025 7:25 PM
29 Comments
Quote from justinxip View quoted comment :
This might be a dumb question, but does this mean it will only be available in-warehouse starting 4/9? So if I went that day, I'd have a good chance at grabbing one or two of these units for this price?
No, it means the discount will start on 4/9. You might find them in the warehouses before that. If you buy one before 4/9, you could go back and ask for a price adjustment on or after 4/9.
Apr 1, 2025 7:40 PM
29 Comments
Joined Sep 2014
arla-sdApr 1, 2025 7:40 PM
29 Comments

Our community has rated this post as helpful. If you agree, why not thank

The 8k BTU variant is Wirecutter's top pick for a window air conditioner. I have this 12k BTU model, and I rather like it - it's quiet, and it keeps the space at a steady temperature. While installing it properly is annoying, the upside is that it comes with a mounting bracket and some pretty decent insulation, so it's going to have a much tighter fit than most other window air conditioners.
1
Pro
Apr 1, 2025 7:55 PM
3.9K Comments
Joined Dec 2008
qkumbr
Pro
Apr 1, 2025 7:55 PM
3.9K Comments
Add "Starts April 9th" to the title
Original Poster
Apr 1, 2025 8:06 PM
1.7K Comments
Joined Dec 2007
UN0335
Original Poster
Apr 1, 2025 8:06 PM
1.7K Comments
Quote from qkumbr View quoted comment :
Add "Starts April 9th" to the title
Oops, thanks!
Apr 1, 2025 8:18 PM
42 Comments
Joined Feb 2016
izzard1Apr 1, 2025 8:18 PM
42 Comments
I have this. I am not sure what to expect from $280 A/C, it's definitely not BMW but it has been running for three years. The app works, it cools down, and it fits my window... can't complain.
2

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Apr 1, 2025 8:26 PM
737 Comments
Joined May 2011
Ps3RulesApr 1, 2025 8:26 PM
737 Comments

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Bought a couple years ago. It's a great AC, super quiet…. But yeah, VERY hard to clean the fan. It gets really dirty in there and yet they made it almost impossible to access it. My fan got so clogged up, airflow was barely getting thru. Would be a perfect AC if they'd only make it easier to clean that fan.
3
1
Pro
Apr 1, 2025 8:45 PM
3.4K Comments
Joined Jul 2020
ThirstyCruz
Pro
Apr 1, 2025 8:45 PM
3.4K Comments
Quote from Ps3Rules View quoted comment :
Bought a couple years ago. It's a great AC, super quiet…. But yeah, VERY hard to clean the fan. It gets really dirty in there and yet they made it almost impossible to access it. My fan got so clogged up, airflow was barely getting thru. Would be a perfect AC if they'd only make it easier to clean that fan.
This will be 4th season, and I simply maintain clean filter and been fine. What environment are you using it in that the blower fan is becoming that dirty so much so it reduces airflow?
Apr 1, 2025 9:29 PM
1.7K Comments
Joined Feb 2010
DallasGGApr 1, 2025 9:29 PM
1.7K Comments
Quote from Musicaholic8000 View quoted comment :
Read some reviews. People still complain of mold and it's not the easiest to disassemble. Real pain to clean the blower wheel as it's like 2ft long.
https://youtu.be/esPGXI-nVjI?si=LiFYHgfSkE__Ix-4
How many people actually do that? Just curious.
Apr 1, 2025 9:59 PM
96 Comments
Joined Jan 2015
ejordan525Apr 1, 2025 9:59 PM
96 Comments
Quote from Musicaholic8000 View quoted comment :
Read some reviews. People still complain of mold and it's not the easiest to disassemble. Real pain to clean the blower wheel as it's like 2ft long.
https://youtu.be/esPGXI-nVjI?si=LiFYHgfSkE__Ix-4
I can attribute to the mold issue. Mine lasted two seasons, but I didn't realize I'd have to maintain it other than cleaning the filter, etc. I just bought the newer 8k model with Matter connectivity since I believe the 12k was oversized for my bedroom (got it on sale 2 years ago at Costco). Once I get the 12k swapped out with the 8k, I'm going to try and disassemble the 12k, clean it, and move it to the garage for use.
Apr 1, 2025 10:08 PM
314 Comments
Joined Dec 2005
DrGwatApr 1, 2025 10:08 PM
314 Comments

Our community has rated this post as helpful. If you agree, why not thank

Great AC units. 4 scattered around the house have taken the place of our central AC in South Florida. Yes, nasty mold does form easily on the fan. I permanently removed the black wire grate behind the louvers to make accessing the cylinder fan easier. Bottle brush with a 1/2" diameter x 4" long brush fits between the fan blades to dislodge the gunk that forms. Then it gets rinsed down to the exterior side of unit. Final rinse with outside case removed finishes it up.
2
Apr 1, 2025 10:11 PM
7 Comments
Joined Nov 2013
HyperEnergyApr 1, 2025 10:11 PM
7 Comments
I've had 3 of these. We had significant mold issues within weeks of installation with little ability to clean, ended up returning them for more traditional ones.
Apr 1, 2025 10:27 PM
379 Comments
Joined Jun 2016
jayreezyApr 1, 2025 10:27 PM
379 Comments
Does anyone know if the 8000 btu ones ever go on sale as well?

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Apr 1, 2025 10:39 PM
5.5K Comments
Joined Oct 2007
dealboy12Apr 1, 2025 10:39 PM
5.5K Comments
Had this for 1 season and it worked fabulous last summer. It replaced a monster windows AC that was a lot louder, used a lot more electricity, and didn't cool nearly as nicely. I'm hopingthe 8000 BTU models go on sale as well.

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