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3
votes
2answers
2k views

Can I increase air volume by adding more fans?

I have a straight 25 foot rectangular duct that is 0.9 sqft in cross-sectional area (11" by 12"). There are openings on either end, and nowhere in the middle. I wish to move about 1000 CFM through the ...
3
votes
2answers
5k views

Why is my A/C condenser fan motor wiring backwards, and how can I fix it?

I've just replaced my condenser fan motor on my home A/C unit with this unit: http://www.grainger.com/Grainger/GENERAL-ELECTRIC-Condenser-Fan-Motor-2PRA6 The HP, RPM's and amp ratings all match. The ...
2
votes
1answer
964 views

How “freely” should a central A/C condenser fan spin

Last year my home's central air condenser fan motor stopped working. When I noticed the house wasn't cooling down I went outside to investigate and found there was a humming sound coming from the ...
2
votes
1answer
480 views

What would cause a ceiling fan to stop while the light still works?

Installed a new fan/light today. Wiring appeared to be identical to old fan we removed. green ground to green ground on mounting bracket. white to white. black and blue to black. Turned it ...
9
votes
4answers
20k views

What is the purpose of a bathroom exhaust fan?

Okay I actually do understand the purpose of the bathroom fan; it gets the steam out of the bathroom after a super hot shower, right? Well turns out I NEVER turn it on. I suppose I don't shower in ...
2
votes
2answers
2k views

Why would ceiling fan reverse air flow without me changing directions?

I have this exact ceiling fan, and so far it has worked nicely. It is mounted in my bedroom, I believe height to floor is about 12 feet and the rod from the ceiling to the actual fan is about 18 ...
3
votes
3answers
8k views

Why has my ceiling fan's speed become slower?

We have owned a Minka Aire ceiling fan for about 4 years and it has been great overall; running for 24hrs a day. It has 3 settings and when we initially purchased the fan; the speed was noticeable ...
2
votes
1answer
1k views

How can I tell if my bathroom vents are connected?

I've lived in this house for 20 years. The bathrooms (3) all have switches for fans, but the two upstairs ones do nothing when you flip the switch. Recently, while doing other work, we discovered that ...
2
votes
1answer
537 views

adding new power outlet, ceiling fan/switch kills the power to it when on

I'm adding a new power outlet for some electronics. I'm dropping a 12/2 wire from the attic where I'm attaching it to a junction box. The junction box has an existing wire, 12/2, and a 14/2 wire ...
2
votes
1answer
4k views

How do I install a wireless remote for a ceiling light without a fan?

I have a fan with lights in my ceiling. There is no wall switch, only a wireless remote. I'd like to avoid installing a wall switch if possible. I purchased a chandelier assuming that I could just ...
5
votes
2answers
1k views

Line voltage thermostat to shut off attic fan when outside temp is close to inside?

I have an attic fan with a thermostat, but with the high heat these past weeks, the outdoor temperature is often above the thermostat setting. Thus, I'm just replacing all the air in the attic with ...
1
vote
0answers
508 views

How do I ventilate a bathroom through a small window?

I've got a very small bathroom without a vent fan. Since it is in a condo among a lot of others in a large building, a standard vent fan cannot be installed. However, I do have a small window and was ...
3
votes
2answers
530 views

Apartment cooling with fans

I've just moved into an apartment without an air conditioner in Sunnyvale, California. The weather is not too hot, but there are going to be some pretty warm days in the summer, especially since I'm ...
2
votes
1answer
532 views

Ceiling fan stops after a few seconds

I just installed a ceiling fan on our patio. When turning on the power, the fan starts spinning as I would expect it to. After a few seconds however, the fan seems to be spinning only through inertia ...
4
votes
4answers
2k views

Replacing a bathroom fan?

I have a bathroom fan that doesn't turn anymore. Flipping the switch doesn't do anything, but if I nudge it enough it might get going. I used to spray WD-40 on the bottom where I could see it turn ...
1
vote
2answers
4k views

How do I replace a condenser fan motor in a central air unit?

The condenser fan motor on my central air unit has seized up (tried like crazy to turn it it, but no go). I'm not sure how old the motor is but I'm guessing it's original, so about 12 years old. I ...
1
vote
1answer
529 views

Should I use inline bathroom fans?

I'm building a new full bathroom in my basement and I also have an existing full bathroom without an exhaust fan. The sizes are 207 ft3 and 470 ft3 respectively. I was initially thinking of buying ...
3
votes
1answer
467 views

Reducing Attic Fire Risk

When I had my house built, it got cold and so we called the local power co-op energy savings expert to give us advice. One of the things he said was that we had the wrong kind of insulation in the ...
7
votes
3answers
1k views

Are new “low noise” whole house fans actually quieter?

I've dealt with a number of older whole house fans (10 years and older) and the one thing they all had in common was a ton of noise. Are the new "low noise" fans actually that much quieter than the ...
3
votes
2answers
5k views

Why does the gas furnace blow cold air at the start of the heating cycle?

What does this problem sound like? There is a 25 year old gas furnace in the house we rent. (The guy that owns the place claims there is NO problem at all. He said the igniter is brand new and ...
1
vote
1answer
144 views

Fan between rooms?

I presently work at home, which means that I spend a lot of time in my office (ya think?). Unfortunately, this room is not a good one for air conditioning (or heating) in the house. I can often get 8 ...
2
votes
3answers
217 views

What should I look for in a Whole House Fan

I see a lot of variance in the prices of whole house fans in the market, and not a lot of clarity or comparison between vendors and models. We're looking to buy some to install in our newly purchased ...
5
votes
3answers
16k views

What is the purpose of a watt regulator in my ceiling fan?

The lights on my harbor breeze fan stopped working this morning. When I came home from work, I got the ladder and took down the lights. I don't have a multimeter but I saw that there is this Watt ...
3
votes
4answers
2k views

How do I fix a ceiling fan that won't turn off?

I have a ceiling light/fan fixture in one of my rooms connected to a single electrical switch. There are two pullchains on the fixture, one that controls the light, the other controlling the fan. I'd ...
2
votes
2answers
3k views

How do I change the remote frequency options in my ceiling fan?

My Hampton Bay ceiling fan remote control is interfering with my neighbours. Inside the remote there are switches to adjust the remote frequency. Where in the fan do I make the corresponding ...
1
vote
2answers
2k views

How do I fix a squeaky/whiny ceiling fan?

I have a Monte Carlo ceiling fan, similar to this one in style. It has a light that points up towards the ceiling and another towards the floor. The fan is making a whiny almost squeaky noise on all ...
10
votes
6answers
441 views

How do I balance a ceiling fan?

About a year ago I installed a new ceiling fan in my living room and when it was installed it was balanced nicely, but it has a little wobble. How do I bring it back in to balance?
6
votes
1answer
200 views

Where can I find a bathroom fan that will fit in a 5" cylindrical space?

The fan in the master-bathroom of my house recently stopped working. The old fan is in a 5" cylindrical housing in the ceiling and the housing is not going to come out without major work on the ...