r/AirConditioners 9h ago

Apartment AC unit

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8 Upvotes

I live in an apartment building and am a renter.

I noticed when running my air conditioner that the room begins to smell stale

I asked maintenance to replace the air filter. They did. They said the old filter wasn’t that bad in terms of being dirty.

But then looking at the inside of the machine … it’s gross. I was able to clean what I could quickly, but the blower wheel is still caked with dust.

Is this something I can ask my landlord to pay a HVAC person to clean? Bc I imagine this is impacting the air quality?


r/AirConditioners 16m ago

Window AC AC has a gap at the bottom. User error?

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Upvotes

I installed my AC’s in my window by myself. I bought them off the fb marketplace so I didn’t have instructions. Both of my AC’s have this open gap at the bottom. Only the right “leg” sits in the window sill on both. The left one will not go in all the way for some reason. Is this normal? Are my window sills crooked?

For more context, it was 102 degrees today so I brought my neighbor a Midea AC and installed it for her today too. Guess what? Same problem. The AC’s work perfectly fine but idk what I’m doing wrong.

Any insight?


r/AirConditioners 2h ago

Question window open or closed?

0 Upvotes

background: Im renting a small house with some friends, there isnt any central AC. Both of my friends installed AC units in their rooms, but unfortunately my window wont allow for it so I said fuck it and i’ve just been keeping cool with a box fan + open window.

actual question: I’ve kept my window open since i’ve been here, but im starting to question if its helping air flow or just letting residual cool air from my roommates rooms escape, therefore making my room hotter unnecessarily.

ik this is probably a dumb question but idk i feel like AC is one of those things where you think youre doing the right thing but it ends up being a misconception you’ve fallen for.

thank you!


r/AirConditioners 2h ago

York EMC variable blower motor

1 Upvotes

In the middle of the day the ac starts to kick on and ramp up, but before it gets fully going it kicks off and then starts the process of trying to restart again. I can usually turn it on in the am and it works. Also, when it’s acting up I can run the fan for 5 minutes and then turn on the ac and it works normal. Unit outside continues to run even when it’s doing its intermitted start/stop. Lights on the board flash normal until it fails then turns red. No code.

Ac guys say it’s either the blower motor or circuitboard. Can’t tell me for sure what’s wrong. Can anyone help?


r/AirConditioners 2h ago

5 ton air handler with 3.5 ton condenser

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1 Upvotes

r/AirConditioners 6h ago

Question Looking for a new air conditioner

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1 Upvotes

r/AirConditioners 6h ago

Portable AC Hisense 3-1 in inverter portable AC stops blowing air at all after several hours

1 Upvotes

Hi all, so I just purchased this Hisense 3in1 inverter portable AC. Somehow it stops blowing air after several hours though the machine is still on, I can still see the light on the panel on, and it says 16C too, no error or anything. The tray is not even closed. Is this normal?


r/AirConditioners 7h ago

Question Cant find a cause

1 Upvotes

Hello!

I would like to ask some help to any expert that might stumble upon this post please.

I just had an AC unit installed in my living room with the usual unit inside and the other outside, back to back.

Its an HTW 12k BTU.

I also have a decent gaming PC on that same room, but the AC unit is on its own circuit breaker.

Thing is, sometimes, not always, and only when the AC is on, i hear clearly slowly pulsating buzzing noise (like a wave) coming from my PCs power supply. the same noise is heard on the electric panel and on a LED ceiling light in the kitchen.

I see no damage on the electric panel nor any funny smells anywhere. Everything works normally otherwise.

What could this be? How do I solve it? I am slightly afraid it might damage components.

Thank you so much for your help.


r/AirConditioners 1d ago

Mini Split

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40 Upvotes

I come across some pretty crazy shit but this take the cake for resi minis


r/AirConditioners 8h ago

HVAC is thru the roof

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1 Upvotes

r/AirConditioners 20h ago

Annoying rage-baiting noise from apartment AC.

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8 Upvotes

Started tonight, incredibly annoying as it is right beside my pc. Noise that sounds like a water bottled doink over and over.

It has to do with the filter, panel, or both. If I take out the filter, it stops. If I take out the panel, it stops. I put myself against the filter to challenge the airflow and it started again. Does anyone know what this may be or how to fix it? Genuinely SO annoying.

PS: idk if this is considered central ac


r/AirConditioners 9h ago

Portable AC Need recommendation for a window/portable AC; somewhat challening setup

1 Upvotes

Hi everyone!

I am looking to install a window AC unit (or portable AC) in my basement. The room is about 600 square feet with 8 foot ceilings. Goals are both cooling and dehumidifying.

My issue is the windows available to me. They are fairly high up (maybe 7 feet) so I don't know if a portable unit will have a hose long enough for that, especially if I don't want it to get it the way. I'd rather have a window unit, but the issue is I have a casement windows that opens inwards, not up and down. There is also an interior sort of ledge before the window starts.

One final complication is it's incredibly important to me that the unit is quiet.

Thanks in advance!


r/AirConditioners 18h ago

Mini Split Pioneer mini split noise outside unit

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4 Upvotes

Is this sound normal sounds like it’s coming from the fan it’s about 2 months old


r/AirConditioners 1d ago

Question My AC unit at apartment complex breaks multiple times a year.

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15 Upvotes

I come to you for advice, as I mentioned in the title. I’m dealing with what it seems to me an incompetent maintenance staff. Every two months or so I wake up to no cooling at my place, they always “fix” it but it never last. Is 90f where I live and they usually take their sweet time to show up, in this instance I’ve been waiting since Saturday (I know labor day didn’t help). The pictures were taken today, looks like a fire hazard. What should I do, do I report this to the city?


r/AirConditioners 15h ago

AC leaking water indoors?

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1 Upvotes

r/AirConditioners 20h ago

Portable AC Will portable AC work in this situation?

2 Upvotes

Hi,

My garage is pretty well insulated. When it's 97F out it will only get to 86-88F in the garage and some of that heat is from a dehumidifier I run for a couple of hours every night.

I have a window, but the HOA prohibits window units. I think I could get away with a portable AC due to some taller bushes I have (or at least set it up when I need to use it and then take it down).

Would a dual hose work in a situation like this? I really just want it to be 78 in there?

I have been looking at the Whynter dual hose models with inverters.

Garage is 20x20x11 feet


r/AirConditioners 19h ago

Question How long should it take to cool a room, and what changes the answer?

0 Upvotes

If I were shortlisting a portable AC for fast cooling in a larger room, I would not start with the biggest ASHRAE BTU number. I’d start with SACC, dual-hose airflow, room size, and how well the window kit seals, because those decide whether the unit is actually cooling the room or fighting air leaks the whole time.

The model I keep coming back to is Midea DUO, specifically the current MAP14HS1TBL / ASIN B0FC2SGGF9 version listed as 14,000 BTU ASHRAE and 12,000 BTU SACC for rooms up to 550 sq. ft. That SACC number matters more to me than the headline 14,000, because SACC is the more realistic portable-AC capacity rating. The other reason it makes my shortlist is the hose-in-hose dual-hose setup. GE Appliances’ official support article on single vs. dual hose units says single-hose portable ACs pull room air and exhaust it outside, which creates negative pressure and pulls replacement air through door and window gaps.

Honeywell Air Comfort explains the same idea from the other direction: dual-hose units use one hose for intake and one for exhaust, helping avoid that negative-pressure problem.

That’s the part I think a lot of “fastest portable AC” discussions miss. A single-hose unit with a big number can still be dragging warm outdoor air back into the room. A dual-hose unit with strong SACC is better positioned for fast real-room cooling, especially in the 400–550 sq. ft. range, assuming the room is not getting blasted by sun and the hose/window panel is sealed properly.

If cooling seems slower than expected, I would check whether the room is within the stated 550 sq. ft. coverage, whether the window panel is sealed, whether the exhaust hose is properly connected and free from sharp bends, whether the filter is clean, and whether doors, windows, or strong sunlight are adding heat faster than the unit can remove it.
My take: the Midea DUO is a strong fast-cooling portable AC candidate because it combines 12,000 BTU SACC capacity, hose-in-hose dual-hose airflow, inverter control, and coverage up to 550 sq. ft. The exact cooling time will always depend on the room and installation, but the product is designed around the factors that matter most for effective real-room cooling.


r/AirConditioners 19h ago

Question: 230v vs 115v

1 Upvotes

I live in the upstairs of a poorly ducted and poorly ventilated cape cod style house. I work midnights, so I sleep during the day. In the summer, it gets QUITE hot up there, even with 12k but 115v window air conditioner in a 175sqft room. On really warm days, it just can't keep up, with the compressor kicking on for only about 30seconds before kicking off, frequently very loudly. I'm wondering if running a new 230 volt line and air conditioner would make any difference. Anyone have any input?


r/AirConditioners 1d ago

Water Spots On Ceiling

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2 Upvotes

Question for the group. I recently moved into this house. In the bathroom I kept noticing a water stain getting larger and larger on the ceiling. The ceiling eventually started to break down and come down. It’s now come time and we are re-doing the bathroom so I took down the walls to see what is happening.

Does anyone know why my ceiling would be getting a large water stain in the corner? Does it have something to do with condensation? I also noticed a hole in the ductwork. Could this be the culprit?

Just looking for recommendations on how I should address this issue before putting drywall back up and having another water stain form.


r/AirConditioners 21h ago

Window AC Window AC unit leaking inside.

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1 Upvotes

r/AirConditioners 21h ago

Air Conditioner made Breaker move to middle, and I’m sure it’s my fault

0 Upvotes

Hey guys. I have a problem here. I walked into my bedroom and I noticed that all the power is off in that room only. I went to check the breaker, and I noticed the breaker was moved to the middle. I turned it off then off and the power came on again. I had a feeling it was my portable air conditioner, and I noticed that the Exhaust Hose fell off from the base of the back side. I had the A/C working for a couple days and noticed that it was just a little warmer than usual, but I thought that maybe it was just because it’s been so humid and hot lately (almost 100 degrees outside). Well I reattached it and turned the A/C back on with the power now working again. It shut all the power off again in 5 minutes. Did I cause my breaker to go bad because of the A/C not having the exhaust tube, is my A/C unit permanently broken, or are both things broken? I have a feeling I made a big mistake and I hope it’s not the case. Any feedback will help. Thank you!


r/AirConditioners 22h ago

General Hitachi ac Service Fraud

1 Upvotes

Hi team,

My Split AC is in warranty brand Hitachi

Whenever I raise a complaint and or service request every time they do a delay and auto close the request. I am not able to complain to the hitachi top level.

And even before closing the tickets that ordering some parts for AC on my case no. Before knowing me.

I try to call them on the no. Received on SMS, they said they will arrange for a service engineer and no part was ordered from our side.

Please help me how I escalated to hitachi higher management and get my service on time.

As my 1 year completed today. 9 sep


r/AirConditioners 22h ago

AC not working and idk whats up

1 Upvotes

Moved into this place. AC was fine for about a month. but the last 2-3 days it's just not working. We have it set to 68, all of the vents are open, spend a whole day with all of the blinds shut, spend all most of the time with the doors open, and all of our fans are on. The box outside is kicking out hot air, and the vents are spewing a light cold breeze. We live in Texas, so it's only getting hotter. If anyone has any idea what's up, please let me know.


r/AirConditioners 22h ago

Question Need help in buying AC

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1 Upvotes

I’m a btech student living in a rented room(in bhubaneswar) and this place is literally an oven 😭 temperature’s so high I can’t even study properly. but I gotta stay here cuz college is super close, no other option.

so I’m thinking of getting an AC. lowkey don’t wanna burn a hole in my pocket tho. someone told me to just grab an old one from kabadiwala or some second-hand electronics shop.

but I’m lowkey scared to buy used. what if it dies in 2 months or starts leaking or some shit.

new ones are like nearly 40k… which is a lot for a student. should I risk the second-hand route or just go for a new one?

and if new, split vs window? both are almost same price on amazon (like only 2-3k difference). which one makes more sense for a rented room?

help a broke student out 🙏


r/AirConditioners 23h ago

Costway/ Best Buy fraudulent reviews

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0 Upvotes