Questions tagged [air-conditioning]

For general questions regarding cooling your home.

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8 views

HVAC Condensate Line P Trap

I've consistently experienced issues with my AC. I won't get into all of the background, but I would like to know if the pictured condensate line is appropriately trapped. The vertical PVC pipe is not ...
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1answer
329 views

Better option to place tubes from indoor and outdoor units in AC

Currently AC(split ac) is positioned as shown in the image: But now i would like to move it to another place, here i cannot change position of outdoor unit. Changing AC indoor unit position will ...
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0answers
13 views

How do I calibrate a Totaline thermostat?

Our thermostat is not reading correctly how can I calibrate it? I searched the Totaline site and it seems like this particular product is not listed (and I can not find the model of this product), ...
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1answer
28 views

Need to determine the correct start capacitor for hvac unit

I need to replace the start capacitor in my HVAC unit and I don't see any identifiable markings on it. This unit also has a heat pump. I believe this start cap is for the heater. I found the part ...
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1answer
6k views

Is a portable air conditioner supposed to make a buzzing/rattling noise?

I have a brand new Olympia Splendid Ellisse HP portable heat pump/air conditioner and it makes a vibrating buzzing noise when it is on doing the cooling. I understand there should be some compressor ...
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1answer
3k views

Extend dryer termination away from condensing unit

How can I extend my dryer's exhaust vent away from my A.C. condensing unit using the existing outlet? It currently looks like the picture below. I don't know if the vent going through the wall is ...
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7answers
181k views

Should I insulate air conditioner coolant pipes?

I recently replaced some rotted insulation on the coolant pipe that runs out of my AC unit and into the evaporator in my house. When cleaning inside the actual AC unit itself I noticed that the ...
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1answer
72 views

Should whole house humidifier leak cold air in the summer?

I've recently been learning a lot about sealing our HVAC ducts to improve system efficiency. On my mission to seal every accessible leak, I noticed my air conditioning/furnace cabinet joints were ...
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2answers
159 views

Air conditioner problems

My A/C is having problems for the last few days. My outside unit which the main motor is always cycling off and on every 3-5 minutes and the room temperature is not improving. This happens even when ...
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2answers
130 views

Is a bathroom required by code to have a window or exhaust fan?

The Fort Lauderdale, Florida unit is on the top floor and there is a duct for the unit's central air in the bathroom, but it doesn't have a window or exhaust fan. Is this not to code? What are my ...
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0answers
31 views

Thermostat C-wire not working

I recently switched out my old thermostat for a new thermostat. The previous thermostat had an R, Y, W, G, and C wire. I plugged all of these wires into the same ports on my new thermostat. After ...
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1answer
79 views

Info concerning an old AC unit [closed]

I have a Panasonic cu-g125ke AC unit which trips the circuit breaker 30 seconds after its's powered on. I have searched the manuals for what to do but it says: contact a dealer in your area. The ...
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1answer
189 views

Maximum weight window air condition without supports?

For the average old window what is the maximum weight air condition you should have installed without any support brackets beside screwing in the window frame from the inside? For example up to 50 ...
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1answer
243 views

Honeywell T6 PRO Z-Wave Thermostat (model th6320zw2003) exhibits very erratic behavior after battery replacement

Background: My apartment complex installed Honeywell model th6320zw2003 thermostats in all units about six months or so ago, and it had been working well for all that time. The only issue was that ...
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0answers
28 views

How to best position a dehumidifier

Want to ask about the best orientation for a portable dehumidifier to allow cloths to dry the quickest. Take this top down drawing of a portable dehumidifier as an example: Air inlets are at the two ...
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5answers
20k views

How do I eliminate the cold drafts coming from my air conditioning vents during winter?

I have a forced hot water (baseboard) heating system in my home and added central air conditioning about 10 years ago. The cooling system's air handler is in my attic, and duct work was added for the ...
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1answer
125 views

Line to AC dripping at the furnace

My line from my exterior AC unit is dripping at the furnace. The dripping over time has caused rusting and we've had to replace the control board under it. It appears the root cause of the problem ...
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0answers
32 views

Finding the Right Heating\AC Thermostat

I have a thermostat in my house that seems to have a very narrow temperature band. This causes it to cycle on and off more frequently that it probably should. I have noticed that when I set the ...
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0answers
22 views

Goodman AC inside fan will not work at night

My Goodman AC unit is about 4 years old. In the past few months, during the night the outside compressor will kick on as required but the inside fan will not run. The outside unit will continue to ...
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1answer
44 views

Heat-pump style AC is not putting out cool air

I live in the Northern area of the US, and I have a heat-pump style AC unit. So there is an AC unit with big fan outside my house, and there is a furnace in my attic. I bought this house 10 years ago ...
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5answers
111k views

What are the recommended settings for a dual-zone air conditioning unit?

What are the recommended settings for an air conditioning unit that is dual-zone? Meaning, if I have a house that is two stories I know that in Florida they recommend you keep it at 78 F in the summer ...
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1answer
15 views

HEPA filter for GE portable air conditioner?

I have a GE portable air conditioner like the one shown below and am trying to determine whether there exists (OEM or otherwise) a HEPA air filter I can install in/on this device. I am unable to ...
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0answers
29 views

Compatible filter for a Hiyasu HR-24LA HVAC unit?

We bought a house with the A/C installed. We found a lot of dust, and realized that the filter was entirerly missing in the indoor unit. I have found it in the Hiyasu catalog, and I found a manual for ...
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1answer
59 views

Why is an aircon with 34000 BTU cooling capacity uses less current than a 14000 BTU unit?

I plan to buy aircon but have a question. My friend office has 2 aircons. Both 220 volts. 3 toner 34000 BTU cooling capacity with 16.4 A rated current. Stand unit model Carrier CP-A280MA. I cant read ...
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1answer
51 views

Best window AC for high humidity climate suitable for permanent mounting

I was thinking about having a carpenter mount a window air conditioner in a room. But, the problem I always have with window air conditioners units is that the humidity is too high where I live and ...
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2answers
182 views

I have a Janitrol Model A42-15 and I wanti to replace the outside unit, but it takes the dreaded R22

Can you use the new refrigerant with the existing inside unit? If so, what would be units that are compatible with my existing one? My outside unit is a 3.5 ton unit, but I am going to need a 4 ton ...
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2answers
888 views

AC Blower Motor not working during night

The blower motor in the furnace stops working at night most of the time when the AC should be on. The blower motor (in the furnace) might run for one or two cycles at the beginning of the night but ...
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0answers
25 views

Air conditioner blows erratically

I have a Samsung split air conditioner and the internal unit blows unevenly; I take off the lid that contains the filters and stops doing it. I remove the filters, reinstall the lid, and blows ...
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2answers
153 views

Reducing a 6 inch ac exhaust to 4 inch

I bought a portable ac for my garage. It comes with a 6 inch hose. I want to bore a hole thru the conderblock wall. But a 6in hole just seems too massive. I don’t want to destroy my house. I would ...
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1answer
107 views

Portable AC unit extraction hose routing

I've got a "portable AC unit" which is a free-standing unit, not a permanent installation like a high wall split system. They require to be vented to the outside world, otherwise they simply don't ...
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1answer
28 views

Is it worthwhile to replace evaporator coil?

My AC condenser is done for and needs to be replaced. The evaporator coil is 15 years old and still working. I could get both replaced at once, or just replace the AC condenser. Doing both will cost ...
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1answer
95 views

Would insulation on my attic walls make it easier to keep my home cool?

I recently moved into the attic and converted it into my bedroom. There was insulation on the floor but none on the walls which made it uncomfortable to live in considering its the summer. I got a ...
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2answers
61 views

What's the point of AC fan speed?

Does higher fan speed make the room cooler? But then, if the thermostat is set at a certain degree doesn't the AC keep the room at that temperature regardless of what speed the fan is set on? What ...
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1answer
61 views

Air conditioner not blowing air

I have a LG air conditioner that i can find it online, not sure why. when i turn it on, there is no air blowing. not sure if it helps but the model number is hs-0964f73. not sure why but i cant seem ...
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2answers
74 views

Can I use an adapter to plug a 230v air conditioner into a 120v outlet?

Can I use a 240v to 120v adapter to plug my 230v window air conditioner into a normal wall outlet without having loss of power to the unit or without potentially facing any other problems?
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2answers
357 views

Heat pump not working after rain

A couple weeks ago, I had a Goodman 3 ton heat pump split system put in. At 5pm hours today, I was outside near the heat pump and noticed that it was functioning properly. At about 6pm, there was a ...
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2answers
177 views

How can I add breakers for a new HVAC system to a full panel?

I am installing a 240v ductless mini split. My breaker box is full, and I have a separate (hot water) breaker in its own box on its own meter. The main is a 100 amp Westinghouse, the house is 2000 sq ...
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2answers
48 views

How best to isolate dirty power caused air conditioners or other motor driven devices at the dirty device itself?

I have two air conditioners that are the source of some voltage fluctuation/line noise in my home. The two A/C's running at the same time is definitely and unambiguously at fault. This is primarily a ...
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1answer
34 views

Installing Ecobee 3 Smart Thermostat in Apartment

I live in Scottsdale AZ and I just purchased an ecobee smart thermostat. I’ve tried multiple ways when wiring up the thermostat. I followed all instructions closely. Can anyone help. The new ...
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2answers
293 views

A/C unit cycles on and off during cooling phase

My outside compressor / condenser is cycling on and off, even though the thermostat is calling for A/C. The blower in the house still runs, and the thermostat is working properly. (I opened up the ...
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1answer
68 views

Hook up new thermostat

Top brown picture is my old thermostat white is the new one , do I have it wired correct? On out side unit we have replaced motor, fuses, compassator ,cc contactor ,relay . We have a heat pump. But ...
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1answer
60 views

Is negative pressure bad and how to fix?

I have a one story house and I think there is a negative pressure problem. If the central a/c is on and I close the hallway door the hallway heats up like an oven. This hallway leads to all the ...
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1answer
77 views

Fan comes on but the air conditioner does not

During hot days when the air conditioner is on a lot it comes to a point in the evening when the air conditioner shuts down and the fan (from furnace) stays on. This will go on all night as the house ...
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1answer
21k views

Energy Saver on new A/C doesn't work well

I just got a GE AEW12AM window a/c and the energy saver mode doesn't work that well. I'm used to the in-wall a/c that usually run for a few minutes then turn off for ten. This GE unit seems to turn ...
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2answers
130 views

Why doesn't my furnace fan run in cool mode?

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 ...
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1answer
868 views

Sealing middle of sliding window with portable air conditioner installed

In my bedroom I have a one hose portable AC unit, because my only bedroom window is a sliding window. Currently, I set up the window kit in the day and take it out before bed. The reason for this is ...
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0answers
15 views

How to run new exterior A/C drain line

I'm trying to replace my A/C drain pipe. It was draining into an old PVC pipe contraption that did nothing - water was leaking all over the brick and foundation. I pushed the PVC to the side and ...
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2answers
57 views

Is it worth of replacing central AC coil?

my central AC is a 16-year old Trane. According to inspector, the compressor is still good and all the conditions seem to be good, except the coil is leaking. It is an old model so it uses R22. As it ...
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1answer
1k views

How can I vent a portable A/C unit through bars on a window?

I need a way to fit the vent from my portable a/c unit through the bars on my window. The window bars are installed for security purposes and the average hose is way too wide. Any suggestions?
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4answers
47 views

Can I keep mold out of wet rags?

I am cleaning windows (small business) and that generates a bag of wet dirty cotton towel rags each day. I wash the rags each day, and need to store those until the end of the week, when I take the ...

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