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13
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3answers
4k views

Is there a device that will allow a bathroom fan to run for 5 minutes after it is switched off?

There is one switch that controls the lights and fan in the bathroom. Users turn the light/fan on when they enter, and off when they leave. I'd like for the bathroom fan to run for a time after they ...
11
votes
7answers
540 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?
9
votes
4answers
30k 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 ...
7
votes
3answers
2k 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 ...
6
votes
3answers
25k 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 ...
6
votes
1answer
218 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 ...
5
votes
1answer
3k views

How can I install a ceiling fan where there is no ceiling box or wiring?

I want to install a ceiling fan with a light in a spare bedroom with no ceiling wiring. What size wire do I need to use to install with cord management channels and plug into an outlet controlled by a ...
5
votes
2answers
2k 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 ...
5
votes
5answers
560 views

Air sealing a whole house fan

I have a whole house fan installed in my house from the previous owners. I love the fan, as it lets me cool down the house quickly in the evening -- or after I fill the house with smoke from ...
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 ...
4
votes
5answers
26k views

How much energy will continuously running a furnace fan use?

We have a bi-level (tri-level? There's a small entry way and utility room, then an upstairs living area and master bedroom and a downstairs living area with bedrooms) in mid-Michigan. The downstairs ...
4
votes
4answers
15k 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 ...
4
votes
1answer
4k views

Can I control a bathroom extractor fan independently from the light?

My bathroom extractor timer fan works fine except that I have to have the lights on when it is in use. I have 2 windows in the bathroom and feel it is a waste of energy to have the lights on in order ...
4
votes
2answers
773 views

Can I use an exhaust fan instead of a hood in the kitchen?

Can I install a ceiling-mounted exhaust fan (350 CFM) over my kitchen island, with 48-inch gas range, rather than a hood? If so, can you recommend an exhaust fan?
4
votes
1answer
730 views

Why won't the fan run independently of the air conditioner?

I have central air and heat, with a Nest thermostat. My system has Y, G, R, C and W wires coming out of it: which are wired into my Nest like so: In between, there is a splice where the C wire is ...
3
votes
3answers
753 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 ...
3
votes
4answers
3k 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 ...
3
votes
2answers
3k 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
1answer
718 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 ...
3
votes
3answers
7k 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 ...
3
votes
3answers
382 views

What is considered “over a tub or shower” for a bathroom fan?

I'm going to add a fan to my currently unvented bathroom. The fan installation instructions include the text "if this unit is to be installed over a tub or shower, it must be marked as appropriate ...
3
votes
2answers
3k views

How do I install a bathroom fan with its own switch?

There is an existing light fixture and switch for the light fixture. I want to add a bath fan with its own switch. What is the easiest way?
3
votes
1answer
3k views

Should I be concerned that the furnace fan is making a loud noise when it turns on?

About three weeks ago our 10 year old blower motor in the furnace (which also blows for the AC) died (the bearing seized). HVAC company comes out, removes the squirrel cage and motor, puts a new motor ...
3
votes
2answers
8k 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 ...
3
votes
2answers
127 views

How to lubricate a buzzing fan?

I bought a little mini fridge (ok, it's actually one of those wine cooler thingies) that buzzes loudly. Took it apart and discovered the source of the problem: a little fan in there, similar to the ...
3
votes
3answers
1k views

How can I improve ventilation in my room with a window fan while filtering pollen from a nearby tree?

This is a campus building in Aalto University where you have a tree about 10 cm away from the window. The Espoo city does not allow the student organisation AYY to cut down the tree. There is a poor ...
3
votes
1answer
462 views

Can a bathroom fan be vented just outside the bathroom?

I belong to a housing cooperative in the arctic and the temperature drops below -40 C. We are having problems with mold on the ceilings in the bathroom. The buildings were built in 1984 with an air ...
3
votes
1answer
621 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 ...
3
votes
1answer
34 views

How can I install a regular light fixture where a ceiling fan used to be?

Removed an old ceiling fan. There was one wall switch that only controlled the lights. The fan portion could be on regardless of wall switch position (by pullchain on the unit). I'm left with two ...
3
votes
1answer
194 views

Can I vent a bathroom fan through an attic window?

Would venting a bathroom exhaust fan into the attic and through the attic window cause any problems? I was thinking this would prevent cutting a hole in the roof or the soffit. My thought was to ...
3
votes
1answer
556 views

How does the temperature sensor work in an attic fan?

I have an attic fan that should turn on by the temperature that is set. It is pretty hot today (Southern California) so I expected it to be on. So far I have not seen it turn on and I just reduce ...
2
votes
3answers
232 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 ...
2
votes
2answers
350 views

What type of wiring should bedroom overhead lighting have?

On the phone with a friend in Cali this morning. He said that some municipalities are requiring /4 (12-3 or 14-3 romex) wiring for all new construction or rewiring for overhead lighting components. ...
2
votes
2answers
363 views

How much current should I expect this motor to draw when it's running steadily?

This fan lists its "Max. Amperage" as 3.2. I assume the motor draws that much when it's first turning on, then settles down to some lower current. How much current should I expect it to draw when ...
2
votes
2answers
4k views

Does turning the air conditioning on and skipping its “fan” setting damage the air conditioner?

Air conditioning units nowadays allow you to switch it from "off" to various levels of "cool" without requiring you to "fan" setting first. Is there any reason to use "fan" setting (such as for ...
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 ...
2
votes
1answer
265 views

Could I safely use a dimmer switch on an air filter fan?

I bought a small HEPA air filter fan that was advertised as being a quiet model. But it's not quiet enough for me. I bought another "quiet" fan, but the new one is also too loud for my liking. Could ...
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
670 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
2answers
5k 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 ...
2
votes
1answer
137 views

Does this wiring sound right?

First let me preface this by saying that I am very comfortable doing basic electrical work. With this project my electrician is on vacation and won't be back for a few weeks but I wanted to see if I ...
2
votes
1answer
384 views

How can I cover the hole left by removing a kitchen wall fan?

We had an old exhaust fan that vented out through the kitchen wall. We removed it and drywalled over the hole, but are unsure how to cover the hole in the exterior siding. Is there a cover for this ...
2
votes
1answer
2k 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
3answers
76 views

Old wires in kitchen ceiling seem wrong. Any thoughts?

Just bought a new replacement ceiling fan/light for kitchen in house we just bought, which was built in 1912 and has obviously had a wiring update, but many years ago. I switched the wall switch off ...
2
votes
2answers
560 views

De-coupling fan and lighting switches?

Background on what I'm trying to do: This question appears somewhat similar in concept to Can I control a bathroom extractor fan independently from the light? however, in my case, I believe the ...
2
votes
1answer
519 views

How effectively a pedestal fan blowing inward can bring the outside air if kept 2 feet away from a fully open window?

other Facts: Window(s) size 3.5 feet* 5 feet (width) Fan (2 nos.) Specifications Product page - specifications Sweep size: 400 MM RPM: 1280 Air Delivery: 75 CMM (What is the formula to convert ...
2
votes
1answer
2k views

What type of motor do I need for my attic fan?

My attic fan motor appears to be on the fritz (makes a buzzing sound and the fan tries to turn but won't make it more than 1-2 revolutions without sticking). I'm trying to figure out what type of ...
2
votes
1answer
6k 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 ...
2
votes
1answer
734 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 ...
2
votes
1answer
2k views

How does a multi-tap motor speed control work?

I have a Home Depot, undocumented, no-name ceiling fan and I've messed up the speed control connections, and I'm trying to understand how the circuit works. I found a circuit on the internet which ...