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1answer
2k views

AC Blower running very slowly

I have a Ducane heat pump. When running in AC Mode, the outdoor fan and compressor kick off just fine. The blower fan seems to kick off as well, though it's not putting out very much air. I can ...
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1answer
134 views

3 way switches with voltage drop

I have two ceiling fans powered by 2 (3 way switches}. The fans stopped working so I checked the voltage across the terminals on each 3 way switch. The voltage goes from 120 to 74VAC in about 5 ...
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1answer
61 views

How can I speed up my 3 wings fan?

I am using a 3 wings fan in my house and it works very slow, so i want to make it fast and it also do not contain any capacitor or a cylinder type small device.it's an old fan
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1answer
3k views

Blower fan works w/ heat “auto”, not with a/c “auto” or on “on”

I've read the posts with the opposite issue, which have been helpful (you guys are amazing!) but still no solution. Problem is that the blower fan does not come on when system is on "Cool" and fan is ...
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2answers
165 views

Blower motor lost RPMs after reversal of fan direction

My air handler requires a clock wise rotation of the fan motor. After installing a new motor I found it was set in the counter clockwise position. I changed the wires (switched inline connection on ...
2
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1answer
90 views

How do I separate these wires?

My ceiling fan stopped working and I want to remove the light box from the fan so that I can replace an in-line fuse holder. In order to separate the light box from the fan rotation device, I need to ...
4
votes
1answer
593 views

Water Noise When Radon Fan is On

I've got a radon fan installed in my basement, but no sump pump. Starting a few days ago, I've started hearing a constant gurgling or bubbling sound from a basement wall that is 15 feet from where ...
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0answers
71 views

Can a horizontally-vented kitchen exhaust have a downward-facing outlet in a soffit?

Can I vent a kitchen exhaust fan horizontally to an exterior soffit, ending with a downward outlet/cap? (Or must the outlet be horizontal (through a wall) or upwards (through a roof)?
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0answers
43 views

Should I install a doorway fan or dehumidifier?

I have central air in a rancher (one floor), and the living room is on one end of the house. That room is on a slab, and has always been noticeably hotter in the summer and colder in the winter than ...
2
votes
1answer
115 views

Can a GFCI combo and a switch be independently connected to a light and a fan using 14/3 wire?

The box on the left in the diagram is a dimmer switch and the box on the right is a GFCI combo switch. The ground wiring is absent from the diagram. How can this wiring be completed to connect the fan ...
3
votes
2answers
899 views

Can I connect the exhaust vent from my range hood to the existing ceiling exhaust fan vent?

I recently bought a condo that I discovered after the fact to have a "Recirculating Range Hood" over my gas stove. My smoke alarm consistently sounds off when I cook. My HOA has denied multiple ...
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1answer
382 views

How to override an attic thermostat with a wall switch?

I want to install a fan in my attic. I want the fan to be controlled by a thermostat in the attic, but I want the ability to bypass or override the fan from within my house. Ideally I would like to ...
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1answer
377 views

Home: Using Exhaust & Circulating Fans to Improve Air Quality While Staying Cool

In the hopes of ventilating nasty odors and airborne contaminants, I recently installed the Bionaire BW2300 in one of my kitchen windows. This is the only one I have installed in my home at the moment....
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0answers
346 views

How can I rewire my bathroom fan (with light and heat), light, and receptacle?

I currently have a 3-gang box that houses a ceiling light, fan (with heat and light), and an outlet. I would like to move the outlet and ceiling light switch to one wall in a 2 gang box and leave the ...
2
votes
2answers
171 views

What is this metal part around the fan's motor in my freezer and how to prevent it from rusting?

A few months ago, while cleaning, I took the plastic cover off the back (of the inside) of my freezer (covers the fan and the cooler) and things looked fine: I didn't put the cover back on and ...
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votes
1answer
1k views

my furnace fan stays on even when at temperature

I recently installed a 2nd generation NEST thermostat. I'm not home very often, but I was paying particularly close attention to the furnace after installing this thermostat and I noticed that the ...
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1answer
155 views

What are my options on location of a bathroom fan vent in Wisconsin?

I just put in a new bathroom fan and notice the previous one was vented into the attic. I understand this can cause mold after awhile. I live in WI where we see a lot of snow. I was told the roof ...
2
votes
1answer
102 views

Can I use a power gable fan and ceiling louver vents to pull cool air into my house?

I live in L.A. We only have really hot weather 5-10 days a year and it usually cools off at night (outside). I also have a large Gable vent in my attic. (recently added with addition) I would like ...
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votes
2answers
3k views

How to add additional speeds to a box fan

I have a 20" Box Fan, that has 3 speeds. It's a commerical model from Lasko, heavily built, puts out a lot of air... too much actually for my normal needs. So I'd like to add speeds in addition way ...
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votes
1answer
450 views

How to stop a screaming pellet stove?

I'm having trouble thinking of how else to describe the sound that our pellet stove is making. It is a piercingly high pitched sound that appears to come from the blower. Here's a video with ...
2
votes
1answer
532 views

How should I install a bathroom Exhaust Fan on 2nd Floor?

I would like to install a bathroom exhaust fan in my 2nd floor bathroom, due to moisture issues. There is no existing fan, only a light fixture. There are two exterior walls in this room and the attic ...
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0answers
75 views

How can I reduce the noise caused by a booster fan?

The previous owner of my house installed a booster/fan about 2 feet away from one of the bedroom registers. This causes excess noise in that bedroom. The fan is about 40 feet away from the main ...
2
votes
1answer
99 views

How can I fix a ceiling fan that is trying to spin both ways?

Just installed a ceiling fan. Light works fine and I have power to the fan. The problem is that the fan will try to turn clockwise for a second and then counter clockwise and then back again. I can ...
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votes
2answers
32 views

add a temp gauge or “dimmer” to cabinet fan

I have an AC cabinet fan cooling a cabinet that warms with 2 CPUs and a couple external hard drives in it that are on 24/7. However, the fan runs furiously fast and loud and it only really needs to ...
2
votes
1answer
119 views

Is it code compliant for a new construction bathroom vent (no shower) to go down and then over?

I have a challenge on my second floor where a curved steel roof insulated with spray foam makes the best option for a half (toilet/sink) bathroom fan's vent to route down and laterally out the side of ...
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1answer
109 views

What causes a heater fan to keep running?

I have a regular gas air heater that heats the whole house. It is installed in a garage. When I use thermostat to turn on the heat it works as expected. When temperature reaches set value the gas ...
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votes
1answer
321 views

wiring furnace draft inducer fan

I replaced a draft inducer fan on my furnace, the two wires in the furnace that connected to the old fan are black and white. The wires from the new fan are both black. How do I know which to connect ...
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vote
1answer
292 views

How to wire three-way switches to light fixture with a fan?

I have a light fixture with a fan, and two switchboxes with space for two three-way switches each. I would like each switch box to have two switches, one which operates the fan and the other which ...
1
vote
1answer
374 views

Temporary plastic cover for my exhaust fan is discontinued… now what? [closed]

Frost King makes a cover for an 8" fan, but that's much smaller than the cover I've been using. Mine is probably five or six years old and needs replacing. I phoned Frost King and they said that they ...
0
votes
1answer
62 views

12v fan after power cut

i am looking to run a 60mm by 60mm 12v 0.22A fan for 2 to 3 mins with no power after it is shut down. It is needed i case of a power failer. What is the best way? Also want to run fan after shutdown ...
1
vote
2answers
779 views

Combine evaporative cooling with ventilation to increase efficiency of temperature equalization?

We live in San Francisco, which is not known for high temperatures. But our apartment is on the third floor and we get a ton of direct sunlight through our 5'x8' windows. We open the windows enough to ...
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votes
3answers
6k 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 ...
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1answer
331 views

Controlling two fixtures on same circuit independently

I currently have an existing loud bathroom and a ceiling light on he same circuit. The wiring goes from the switch to the ceiling box and then to the fan. Both of these are controlled by the same ...
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votes
2answers
2k 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 ...
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2answers
2k views

How do I fix bathroom fan which is not working?

I recently moved into a new home and found out one of the bathroom fans don't work but the lights are fine. I thought at first it was the motor but the motor run if i connect it directly to a power ...
0
votes
1answer
109 views

Should there be an air outlet in an attic with a whole house fan?

There has been a whole house fan between the second floor and attic of my house for some time. We usually have it on with the downstairs windows open. I just had a thought: Should there be an open ...
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votes
1answer
530 views

Can a GFCI burn out a (ceiling fan) motor?

I added a ceiling fan to an existing circuit with GFCI protection. I know, I know, they say you shouldn't because the inductance from the motor can trip the GFCI. I figured I'd risk that minor ...
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votes
2answers
149 views

How do I wire a new fan that I'm replacing

We are replacing old fan with a new fan The wall switches: 1 switch for the light in the fan 1 switch for the Fan 1 switch for the fireplace which is not used The wires that come out of the ...
0
votes
2answers
2k views

Can i fix or run my 110V pedestal fan on 220V?

I have an old table-fan that I bought years ago and was rated for 110V. During the checkout process, it the option of choosing 110V or 220V and I made the mistake of choosing 110V. I haven't been able ...
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votes
2answers
8k views

Use existing light switch to also power bathroom exhaust fan?

The builder of my house neglected to place an exhaust fan in my guest bathroom. When I brought that to their attention, they replied that code only requires fans in bathrooms that don't have open-...
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votes
1answer
84 views

Can I add a booster fan to increase pressure?

How can I increase cfm in an area that is 3550 x 4288 x 2800 mm. There is already a 700 cfm air handling unit working, but this is not sufficient.
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votes
1answer
121 views

Does lowering the regulator setting of fan minimize electricity usage

We have ceiling fans with "regulators" that allow us to control the speed of the fan, so does reducing speed of the fan translate into power savings rather than heat dissipation in the control element?...
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votes
5answers
4k 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 ...
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0answers
61 views

how do i get power to my dual switch without being controlled by the main light swich?

i have installed a light/fan combo in the bathroom to the light switch,i also installed a dual switch next to the toilet so i could turn the light or fan on individually. it all works ,however if the ...
0
votes
1answer
141 views

Can I use a dimmer on a fan IF I only use at 100%?

I have an IRIS home automation system. I want to put my fan on an IRIS switch however the on/off switches require a neutral - the dimmers do not. The neutral in the box is nearly impossible to get to.....
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votes
1answer
3k 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 ...
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votes
1answer
86 views

What are these items?

I've found a collection of things in the house I just bought and I'm not sure if I need to hold onto them or throw them all away. Can anyone help me identify what these things are and if I need them? ...
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2answers
5k views

Why doesn't the “fan on” mode work after I installed a new thermostat?

We moved into a new house. I installed a new Hunter Thermostat. I have a furnace only and the old thermostat only had 3 wires connected. SO I connected those three wires (G, RH and W/B). The ...
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1answer
733 views

Why is my bathroom fan buzzing and humming when I first turn it on?

It is strange, the bathroom fan is buzzing and humming when I first turn it on. After a few minutes, it starts up normally. Why is it doing this?
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1answer
427 views

Need to cap a ceiling fan pull-chain switch hole

I recently installed ceiling fans along with a remote-control module to adjust speed. As a result, I do not need or want the pull-chains to control the speed of the fan or turn on/off the light. ...