Questions tagged [air-conditioning]
For general questions regarding cooling your home.
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Is this HVAC reducing plenum system designed correctly?
I am redoing my duct work for my home. I have a 3 ton, 1200 CFM central air system. It is currently a undersized "octopus" system. This is what I've landed on for a reducing plenum design. ...
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Outside Installation of Window AC
Can I set a window unit completely OUTSIDE and vent ONLY the cold air into my sailboat via vent hose, similar to that used to vent hot air out from a portable AC located inside? The fan would suck ...
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Midea Extreme Save Air-conditioner Leaking blue
Hello just had this ac unit installed 3 weeks ago. It was perfectly fine at first but today when I woke up I noticed the blue line in the middle of the ac. I was hoping someone knows more about it ...
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Is a rapidly turning on and off water sensor in A/C pan bad wiring or a bad sensor?
I have an AG-1250E water sensor in the pan of my upstairs AC. It was installed 10 years ago, but recently saved me an overflow. I have an issue though, that when this product trips, it starts turning ...
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Best Mini Split BTU Size for Hot Miami Garage: 12'W x 28'D x 12'H
EDIT FOR CONFUSION: The condensor unit will be outside near my front entrance.
I'm a photographer with 12'W x 28'D x 12'H Garage as my studio. It gets very hot, so I've decided to get a Mini Split ...
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What is the most healthy and cost-effective alternative to an air conditioner for the purpose of cooling? [closed]
I am looking for a practical solution to cool single rooms only, on very hot days. I stay away from air conditioners, because:
they always make me sick (I guess it's the find dust they spread
around);...
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Heater/AC trips an entirely different breaker when it kicks on
SOLVED
*Edit: Thanks to the comments, I went back and checked all of the neutral wires. When I pulled all of the outlets back out (but still wired), the breaker stayed on. Put them all back and it ...
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PTAC not cooling room: Can I measure output CFM + temperature to rule out AC issues (e.g. refrigerant, compressor) and focus on finding air leaks?
Super recently replaced my wall PTAC after my complaints, but the new one is still unable to cool the room to specified temperature. I've set it to 60 F but it stays at 70 or so indefinitely. Outside ...
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How can I vent a two-hose AC into an exterior door opening?
I have a standard balcony door that opens inwards, sort of like this:
I want to install a two-hose portable AC and hook up the tubes to the outside. Short of going to a hardware store, getting a ...
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How can one secure a window with a portable AC unit in it?
I have this portable AC unit I bought stupidly years ago when our AC was out. It wasn't seen much use, and its getting in the way.
I was thinking of making it a permanent fixture of my room, but ...
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Removable insulation for portable A/C in Florida
We live in a condo in Florida, where it is extremely humid and hot. We have central A/C, but I need the bedroom to be really cold at night, so we purchased a portable A/C for the bedroom (it is not ...
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AC thermostat and outside compressor seem to work, but no air coming out of vents
The other day our AC stopped working. It is one of two split units, with standard outdoor condenser and indoor fan in the attic. The thermostat seems to work, and by work, I mean shows what the ...
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Install a packaged central AC for multiple rental units [closed]
https://hvacdirect.com/3-ton-13-4-seer2-aciq-ac-only-packaged-unit-paj436000k000k1.html
Hi Everyone,
We have a rental property, and I'm considering installing a packaged central AC (link above) on the ...
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My air conditioner does not drain water
I checked my AC today and found lots of water around it. A guy on Quora suggests that the refrigerant is low. Can someone please give me some advice? Thanks.
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Cooling a room with no window?
My room is always hotter than the rest of the house. It just seems cool air can't get to this part of the house. The lack of a vent in this room probably doesn't help either. Also, my roommate prefers ...
user225233
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furnace whistling
new air ease natural gas furnace has a whistle. This did not happen with the old one. Two story house with two separate zones for heat and cool. Each level has their own thermostats. When cooling both ...
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Maytag AC not responding to remote control
I have a Maytag AC installed by a previous homeowner. The unit cools well, but does not respond to the original remote. I've tried replacing the batteries on the remote, and also tried a universal IR ...
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Question about AC unit
The thermostat for my central air system is downstairs in the living room. The intake for the AC is in the hallway upstairs in between the two bedrooms. I have a breathing machine in my bedroom which ...
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How is the air in my duct increasing in temperature so fast?
Tl;dr version: The air temp is increasing inside a structurally sound and well connected flex duct by 5 to 10 deg f within 8 feet of the air handler. There is no observable external heat source. How ...
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Time delay or contactor bad?
TL; dr
My HVAC has an electronic circuit that delays energizing the compressor contactor for 8.5 seconds upon cooling demand. I can't tell if the time delay is bad, or the contactor. Once the delay ...
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Why is there a channel cut into the bottom of this door? How to seal the gap?
I have a fairly large gap between my door and the threshold (picture 1). Additionally, there's a gap between the door and the side frame (picture 2). Also there's this large channel in the bottom of ...
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During hot, humid weather, should I open or close upstairs windows during the day after running AC all night? [closed]
My two-story house is 1400 sq ft. During hot, humid weather I run the AC all day downstairs. At night I turn off the downstairs AC and I run the upstairs AC all night. Therefore when I get up in the ...
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Dealing with mold on AC unit
My internal AC unit is located in the garage and I'm starting to get worried about the amount of mold growing on the unit. It usually comes in the summer when the condensation on the unit is bad but ...
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Is it okay to store window air conditioners near a natural gas tankless combi boiler?
I have some window AC units that have warning labels saying not to store them near sources of combustion like water heaters. I have a tankless combi boiler that runs on natural gas in a small room in ...
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Why is the compressor cooling fan switching off on my my Air Conditioner and overheating the compressor
I have a Whirlpool portable air conditioner, model number PACF29CO W, production date 02/03/2022
Recently it seems to have developed a fault
The air conditioner has a main fan (blowing out cold air ...
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I have a question about the size of the air filter
this will likely sound stupid but is a 16X20X1 filter the same as a 20X16X1 because the one I have says 20X16 but i can only find 16X20 for sale at hardware stores and even on line.
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Should HVAC have cleanout tee near the trap drain?
My 5yo 4.5 ton variable Bosch air handler is sweating a bit, in my spray foam attic that is averaging 80° and 65% humidity. I've recently washed the coils outside, tried to vacuum the condensate PVC ...
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Is it okay for wall AC unit to use a different model’s grille / rear louver panel
I have a friedrich sleeve & grille but ordered a koldfront AC unit. I don’t want to remove the grille since it’s already installed/sealed and trying to keep the self install simple. Would the AC ...
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Suggestions to cool very humid garage
First time home owner here. Looking for solutions to cool a very hot and humid garage (12'W x 28'D x 12'H). I am not allowed to put a mini-split outside, but I can put two vents above the garage door (...
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Split AC - outdoor fan hissing sound and the white colour connections torn
It is a brand new split AC. Aged only 6 months.
I just randomly heard hissing sound coming from the outdoor fan and also the white connections seem to be torn a little.
Just noticed how they could get ...
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Replacement cord for a window air conditioner, what guage cord should it have if it's a 0651515LY with the numbers 14478 on the plug?
Cord guage for a replacement 120
volt Air conditioner to an extention cord
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What is required to replace a split-AC unit? [closed]
We've got an old split AC unit. It struggles to cool our house (and is noticeably weaker than the other unit we have on the other side of our house), and are thinking of replacing it.
I am a skilled ...
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Where should I place mini-split heads in a converted building?
I've got a 600 sq. ft. metal building I'm turning into an ADU. The interior is insulated with 2" of closed cell spray foam all the way around, and finished with 1/2" drywall on 1x4 furring ...
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What size insulation should I buy for my AC lines?
There is zero tube insulation on the AC line on the roof of my condo. The line appears to be made of two different pipes welded together of different diameters.
Total pipe length outside is about ten ...
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Cleaning my condensate pump
My condensate pump alarm has went off, and I was told to add bleach to break up the sludge. My question is do I add bleach to the pump itself (by popping off one of the white caps) or do I pour it in ...
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What improvements can I make to help house cool down at night after a hot day?
I recently moved into an old craftsman house in southern California. The heat has really moved in in the last week, and I'm trying to get a handle on how to keep the house cool at night. The last week ...
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Trane comfort 2 thermostat keeps going blank
I have a Trane Comfort 2 thermostat and Trane TAM8A0C48V41CAA AC / heat pump. We were gone on vacation for a week. I wanted to turn the fan from auto to on because the air in the house seemed a ...
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Cooling solutions for wide windows
The only window in the main living space of my home where I could put a window A/C unit is 45” wide. There don’t appear to be any window A/C units, or even window fans built for an opening of this ...
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ICP Air Handler C wire location
Can someone help me understand where to attach a C wire to this Air Handler ICP Model: BDHU 331000 . The current wire running from the thermostat to the air handler has 6 wires but only 3 being used. ...
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Insulation and A/C system selection in a metal shed
I've got a 20x30 metal shed that I'm trying to finish out as an ADU. I don't know enough about insulation and A/C to choose what to install. The construction will be as follows from exterior to ...
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Spending $$$ on energy efficiency heatpump attached to old ductwork? Smart? [closed]
My 20 year old heat pump gave up the ghost. With summer here, I need something soon. I've had companies give me bids over the weekend, both with great reviews on yelp and Google.
Guy #1 was selling me ...
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Ecobee saying 2 pieces of equipment running while Compressor is off
I have been having an issue with my A/C where the Ecobee Thermostat will say Equipment Running (2) but the Compressor will not be running. The only solution I have been able to find to correct it is ...
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How can I install window AC units, and where should they go? [closed]
Back in February I moved into this 1972 12x62 (658 sq. ft) mobile home. There’s one window on each end of the trailer while there are five windows on each side of the trailer & with the way that ...
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Expected Amp difference going from SEU-AL to Copper on HVAC?
tl;dr - Would we expect an amp drop between the SEU-AL before the disconnect and the copper going to the AC? If not expected, does this indicate an issue? Would AL wire stress a breaker more?
After ...
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Determine specs / part info for AC contactor?
I recently asked a question about my AC unit not working properly, and I determined it's a faulty contactor.
However, I cannot figure out what replacement contactor to get.
The unit is 30 years old, ...
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Wiring Confirmation from Panel for AC / Visible Issues?
In a few other questions I posted in the troubleshooting of my AC there were comments / questions noting I should check the wiring on my breaker. To my eye, I also don't see any burning or other ...
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Size of generator to run a 14K btu portable A/C unit
I'm looking to run a 15k btu wall A/C unit on a generator. I've been told that the NEC specifies an 8x load rating for the generator to start an A/C unit.
The specific unit I'm looking at is actually ...
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AC Unit Delay Start - Is it contactor?
I have my upstairs AC unit acting up recently. Previously the AC unit used to start instantaneously as soon as thermostat sends the cool signal or if we manually change it from off to cool. But lately,...
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Troubleshooting Samsung AC error code
recently my Samsung AC unit (model AR12RXFPEWQNEU) started throwing error E251 repeatedly and won't start.
So I looked up the manual and saw that the issue was related to the temperature sensor in the ...
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Tolerance for LRA and other settings on my AC unit from those on the nameplate?
tl;dr - How close to the compressor LRA / RLA and fan motor FLA should the meter readings be compared to the values on the plate? Do you also need to consider if multiple readings are off or too far ...
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