Questions tagged [air-conditioning]

For general questions regarding cooling your home.

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5answers
4k views

What type of cable should I run to future-proof an outlet for an air conditioner?

Our new house is still under construction by a standard builder. After the home is finished, I will be installing a small mini split ductless AC system for a home office that will get much warmer than ...
0
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0answers
51 views

AC Air Intake Compartment - Is Repairing This a Reality?

I moved into a 425 sq ft apartment about a month ago. The AC had a leak for awhile. When I found it, they replaced the AC. I have had the new AC for about 2 weeks. I have a musky old wood odor in my ...
1
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0answers
48 views

Is this wood the source of the odor?

I moved into a 425 sq ft apartment about a month ago. The AC had a leak for awhile. When I found it, they replaced the AC. I have had the new AC for about 2 weeks. I have a musky old wood odor in my ...
2
votes
1answer
68 views

What is the meaning of inverter on air-conditioing?

I am going to purchase an air condition for my home. I noticed some types of air-conditioners are AC Inverter. What is the meaning of inverter? What I should know about it?
2
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3answers
8k views

AC - frozen tubes, no air flowing when fan on and system off

Last night I realized my AC stopped working. I turned the thermostat to 74 degrees and by the time I woke up the house temperature was 80 degrees. My home has a single Carrier compressor (obviously ...
0
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1answer
74 views

Are these AC ducts beyond cleaning?

I moved into a upstairs apartment- studio 425 sq feet. The building is a 2 story building. It was built in 1971. I had a bad musky meldew smell in my apartment. My AC broke and the landlord placed a ...
0
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2answers
153 views

Can you save money with a humidifier and air conditioner combo?

I recently discovered how powerful humidifiers can be in terms of generating cold. What happens if you run a humidifier in a small room that has an air conditioner? The dehumidifier can produce air ...
0
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2answers
52 views

Condenser fan and compressor don't start, electrical looks good though?

After replacing the fan, starting capacitor, and running capacitor, the system ran normally for ~1 day. Now nothing is starting. I got a fieldpiece multimeter and tested all of new capacitors, ...
1
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1answer
463 views

Best foam for copper wiring insulation in split-unit A/C?

I went to home depot to buy foam insulation for my A/C split unit inverter. It's to cover the copper wire (and other wires) that go from the inside unit (in the room) to the outside unit (in a roof ...
3
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1answer
89 views

Is there any significant loss of cooling efficiency to wrap the both sunction line and liquid line together using one single insulator?

The installation of a split-type air-conditioner wraps both sunction line and liquid line together using one single insulation, instead of wraping each line separately. Is there any significant loss ...
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1answer
783 views

hard wiring a wall unit a/c

The wires coming from my wall A/C unit are not color coded. The unit was hard wired and is being replaced. the wires that are coming from the a/c unit into the power connection box are not colored . ...
1
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2answers
703 views

Is my A/C circuit break worn out?

My secondary A/C unit has been drawing too much current and trips the breaker. It has happened about 4 times. Yesterday, I spent a bit of money to replace the whole A/C and furnace with one which is ...
0
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2answers
105 views

AC smells horrible - Clorox in the drain tube fixes it temp

I moved into a upstairs apartment- studio 425 sq feet. The building is a 2 story building. It was built in 1971. There is a horrible foul smell from my central AC. When it is not running and with ...
0
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1answer
42 views

Wiring replacement AC contactor

My air conditioner replacement contactor has terminals labelled L1, L2 and T1, T2. Are the L terminals the line in (power) and the T terminals the output that goes to the compressor and fan? Its part ...
0
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1answer
62 views

For a multi-stage system, which stage is for what fan speed?

With a multi-stage system, which of the two stages spins the fan faster? Which is the default and which is triggered when the temperature is further away from the specified value?
0
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1answer
38 views

Can anyone tell me why my new window unit airconditioner has stopped blowing cold air?

I just bought this window unit last July, and right away it was installed wrong. (not by a professional, by a family member who said he knew how) It is tilted so that water leaks into the house. Since ...
0
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0answers
98 views

What is causing that buzz when running my mini-split air conditioner?

There is a short buzz noise that emanates randomly while running my GREE mini-split air conditioner. At first I thought it occurs only while running one of the 3 units, but it seems to occur when ...
1
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1answer
205 views

Is it advisable to mount an outdoor air-conditioner on a wall with brackets?

I heard somewhere that mounting an outdoor air-conditioner unit in townhouses is not recommended, since vibration may propagate through the wall on adjacent units and thus disturb other tenants and ...
0
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2answers
160 views

Failed A/C unit 14 years old

I've got a home warranty through Choice Home Warranty and, after multiple attempts to get a service tech out here for my AC unit,they declined the costs of repairing/replacing the unit due to the " ...
0
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0answers
42 views

A/C split unit inverter leaking. What can I do?

For some unknown reason, my 12,000 BTU split unit inverter is leaking in two places. Here are the pictures of the leaks. The A/C was thoroughly cleaned last week, and the contractor said that the A/C ...
1
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0answers
1k views

AC Can't keep up with Set Point

After looking here A/C not keeping up and also here Air Conditioner Can't Keep up . I have decided to ask a question that perhaps someone can provide me with more insight. My AC unit was doing ...
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2answers
1k views

Should my a/c have some sort of a drip pan (photo)

I've got water (condensation) dripping from this "radiator" in my a/c. It's slanted so MOST of the condensation drips along the radiator and into a drip pan. I'm wondering if I just need to clean it ...
1
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1answer
691 views

Is the U bend in my A/C condensation drain needed?

Is the U-bend (in 1st picture) necessary? I'm guessing it's preventing backflow of gas from the drain. My A/C (heatpump) is leaking condensation. BACKGROUND TESTING: Disconnected the drain pipe ...
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1answer
346 views

Two AC Units in 1 Window Opening?

I have a fairly wide horizontally sliding window. The AC units made for horizontal sliders are expensive. So, is there any problem with putting two normal window AC units side by side in the same ...
3
votes
1answer
100 views

Air Conditioner Draws a Lot of Outside Air When Door Opens

If I open a door when home ac is running, the air blowing in is very noticeable. Not so if ac is off. The air volume out the vents is also low IMO but 2 service guys said "no". In a closed system ...
1
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1answer
131 views

Why were my appliances and air conditioner failing to start for a short period?

I had noticed, after taking a long shower last night before heading for work, my power to my condo unit was flickering on one side. I have a hot water tank, an older Fridge, and a 15,300 BTU 120 volt ...
2
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1answer
9k views

Furnace blower motor runs briefly then turns off

I have an Amana AMH80804BN with a Nest thermostat (wires Y,C,Rh,W,G) and a 3 ton AC. I have been having issues with the AC portion the furnace (heat) seems to work fine. The AC will start out the day ...
1
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1answer
128 views

Does air conditioning work harder or just longer?

If I don't turn on my air conditioner until the inside temperature is 82 degrees and set it to get it down to 78 degrees, will the a/c work "harder" (whatever that means, i.e., draw more energy/minute)...
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1answer
84 views

Central air conditioning system isn't working

Ok, so I have done all the research I can and nothing is working. About 3 weeks ago my A/C was running fine nice and cold no issues. Came home to a house that was 97 degrees inside and started ...
0
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1answer
5k views

Prevent Portable AC from tripping breaker

I live on the top floor of an apartment in Southern California and it doesn't have central AC. I have a portable unit (11.4 amp, 115 V, 1310 W, 60 Hz) and it keeps tripping my breaker. I don't have ...
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3answers
5k views

Vent a portable air conditioner with a 6 inch hose through a 3 inch hole in the wall

I bought a new portable air conditioner for my condo. I bought this one: a/c. I want to use it to cool either my living room or my bedroom. My apartment is 1100 sq. ft. so I believe this should be ...
1
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1answer
245 views

How do I unclog my AC drainage line

I live in a condo with an in-home AC/heat pump. This morning we noticed that it was dripping water, and when we took off the front panel we could see standing water in the run-off tray. It was pretty ...
3
votes
1answer
25k views

Better to run air conditioner fan on high or low speed?

In my apartment, I have two window air conditioning units. Both have different settings for the fan speed: one has two speed options and the other has three. Both have the design that the room ...
0
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1answer
478 views

What is happening when my A/C operates in “dehumidify” mode?

I have a new Carrier Infinity system. Even though there is only one (evaporator) coil in the plenum (no reheat coil), it can operate in a dehumidify mode. In normal "cooling" mode, the fan runs at its ...
1
vote
1answer
331 views

1995 Rheem tripping 40A breaker

We have a 1995 Rheem 3-ton unit cooling the upstairs of our recently purchased home. It has been running frequently, averaging about five hours a day in June. Unfortunately, it has now tripped the ...
0
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1answer
225 views

There is a big open pipe to the attic in my AC closet?

I have a pipe that lets air from the attic into my ac closet. This closet also has the hot water heater. However, both of these already have vent pipes that vent out through the ceiling. Is there a ...
0
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2answers
608 views

Air Handler with no condensation

I have notice that I never have any water being pump out from my first level air handler. I have one air handler on the first level and one on the second level. The second level, which I assume is ...
1
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2answers
87 views

Air Conditioning and blower problems

Ok, the blower unit will run on heat and fan on. However when I switch to auto and cool the blower unit doesn't run. When I have the blower in the "on" position it will run until I switch the ...
3
votes
2answers
347 views

Will relocating my Central AC intake improve performance?

Over this weekend, I have made a breakthrough scientific discovery that will likely change the world - hot air rises compared to cooler air! :) My Central AC system has its intake at the ground level,...
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1answer
112 views

Portable Air Conditioning Venting

I don't have a window and was wondering if I can vent a portable air conditioner down the heating vent for the room?
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1answer
102 views

Ductless Mini Split System for Cooling, Heating, and Dehumidification [closed]

I have a 22x24 foot building that I'd like to heat, cool, and dehumidify in East Texas. I'm specifically interested in purchasing a ductless mini split system to achieve this, but I have the ...
0
votes
1answer
108 views

Remove Urine from Amana In-Wall Heating/Air-conditioning Unit

I just moved into a new apartment and noticed that when I turn the fan up high on the in-wall heating/ac unit there is a strong smell of urine. I swear that someone peed in it. Is there some way to ...
0
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1answer
230 views

Ductless Mini Split heat pump not cooling / heating outside of room

I have a wall mounted mini split (Fujitsu 9,000 BTU) installed in my bedroom over my bed, intended to heat and cool my upstairs (there has no suitable location in the hallway). It is a standard sized ...
1
vote
3answers
2k views

Why doesn't my air conditioner's drip pan drain properly?

My AC Unit in my attic is roughly 10 years old, still heats/cools exactly as it should, but I noticed yesterday that the drip pan is overflowing. What do I need to do to get the drip pan to drain? ...
0
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2answers
2k views

Portable Air Conditioner Compressor Never Cycles On & Off - Is this normal?

I have a portable air conditioner in my bedroom set to 68 degrees. On cooler days it brings the room down to 68 and the compressor shuts off and it runs in fan only mode. Once the temp in the room ...
1
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3answers
4k views

Can a window A/C unit be installed without the side panels?

I really like this A/C unit and its width is exactly the width of my window panel (21.5"), but the "Window opening minimum width" in the specs is 23". From what I've seen in the Q&A for this ...
2
votes
2answers
610 views

How does the decibel rating vary with the BTU capacity of an air conditioning unit?

Across similar models from the same manufacturer, differing only in BTU, which are quietest when operating at the lowest setting to cool the same room? In order words, are larger (and more expensive) ...
0
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1answer
3k views

8,000 BTU vs. 10,000 BTU Portable A/C Unit - Will the 10,000 BTU unit cool the same room X degrees more if all other variables same the same?

My 150 square foot bedroom has central air and stays around 80 degrees F (sometimes a few degrees more or less). 8,000 BTU Results I purchased a Frigidaire 8,000 BTU unit from the Home Depot to cool ...
0
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1answer
44 views

Please help! We have an air conditioning and breaker issue

What is going on if we experience no cool air from our air conditioner? Our inside temperature got up to 85° til we went outside to check out the AC unit and we saw and heard nothing but the ...
2
votes
2answers
2k views

How can I verify how much refrigerant was put in my home AC unit?

I had a routine AC system check. the system was cooling just fine. The reps were here 15 minutes total. They said they had to put in 4 lbs of recycled r-22 refrigerant. they charged me $125 per pound ...