Questions tagged [fans]

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Screw type for hard to get at place?

Full disclosure: I am a newbie so I know little to nothing about carpentry. :-) I am going to be attaching a piece of wood to a thin window sash in order to attach a rather heavy window fan to it. I ...
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1 vote
1 answer
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Wiring and breaker sizing help for Large Ventilation Fans

I have (2) 12,000 cfm recirc fans (230/3/60, 1 HP, 3.4 FLA, Cont. Duty) to install in my shop, using separate WEG Series CFW300 VFDs VFD's (input 230/1/60, output 230/3/60 IP20 High Performance type) ...
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Can I connect a C wire to enable a furnace fan?

Hot weather is here and we don't have AC in our rental house, but our thermostat does have the fan option. After searching online, and seeing other solutions, I decided to look into our setup. All ...
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How to mount an attic gable fan to reduce vibration in the rest of the house?

How can I reduce noise and vibration that's transmitted from an an attic gable fan to the rest of the house? Currently, the fan is mounted via screws to studs on the gable. Even when the fan is ...
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1 answer
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Replacement capacitor for fan lights

The lights on my fan stopped working, and changing the switch didn't help. When I try to turn it on, there's a little clicking sound that I believe is coming from the capacitor, and they flash on ...
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3 answers
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How can I reinforce my outdoor fan mounted to 2x8 so it doesn't wobble?

There is a fan installed on my outdoor patio to a 2x8. This is a high wind area and I noticed the other day that it was wobbling back and forth constantly. I removed the cover and found that the fan ...
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1 answer
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Wiring bathroom light and fan 3 black wires

I was replacing an old Leviton 15 Amp Single Pole Dual Switch and noticed all wires were black. This was for a bathroom that one switch would power the light and the bottom switch would just power the ...
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Rewiring two switches from fan and lights to two separate light fixtures

I took out two fan/light combos and replaced them with two light fixtures (sans fans). The switch box had two switches - one that controlled both lights, one for both fans. How do I rewire the switch ...
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Bathroom Exhaust Fan venting

I need to install a exhaust fan for a bathroom in Dallas Texas on the first floor. The home is two story home. There are two optionsto exhaust the air out. One is exhaust the air out on the side of ...
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1 answer
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Desk fan not starting. No hums and blades don't spin [closed]

I have a desk fan I've been using for almost two years but for whatever reason, it stopped working whenever I try to turn it on. The fan has three speed control buttons and none of them works. I also ...
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3-Speed Kitchen Fan Wiring Problem

I goofed up and accidentally open the 3-speed switch controlling my kitchen fan. When I did that a bunch of metal connectors fell out and I can't figure out how they should be put back. The fan has 3 ...
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Does a basement bathroom exhaust fan duct need to be insulated?

We have a bathroom in a finished basement. While removing the old bathroom fan I discovered that the duct pipe leading outside is not insulated. Should the bathroom fan duct be insulated traveling ...
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Older Payne unit fan goes off, on, off, on several times at end of heating cycle before finally staying off

I tried replacing the fan limit switch but the unit still does it. It’s like the fan shuts off before hot air is cooled down enough and starts up again several times within a minute.
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2 answers
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Can door contact switch turn on a light when open and send signal to fan when closed?

I have a small pantry in a new house which has been designed with insulated walls and doors, etc. with the idea being that it is kept at a different temperature to the rest of the house to store food. ...
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2 votes
0 answers
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Light fixture problem

Just got a new house. This is how the old fixture was wired. The light worked but the fan didn’t. Attempted to wire up a new fixture. Nutted the white from the fixture to the other 3 whites coming out ...
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Nest thermostat issue - only blows hot air if heat is on and fan is forced on. No air circulation with heat only

A few months ago I installed a nest thermostat and everything worked fine. I ended up giving that one away and installed another one A few days ago. It worked for one day and then it stopped heating. ...
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16 votes
1 answer
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Does anyone know what this fan blower thingy is?

I initially thought it was some type of paint mixer then realized the end would not fit in a drill.
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1 answer
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Are replacement bath fans available with the same mount and opening size?

Current bathroom fan sounds like a jet engine for about 30 seconds and then sounds normal. Not sure how old it is but the house is from the 70s. I'm hoping to be able to replace it with a new one ...
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Adding switch to thermostat to control remote fan

A room at the end of my HVAC forced air is cold due to lack of air flow. I’d like to add a booster fan to help with airspeed and I’d like it to turn on/off based on the thermostat switch turning the ...
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Bathroom venting 2 in 1

I have Installation where I will use two bath fans. One in the half bath and toilet and sink the other outside where the shower will be. I would like to combine the two into 1 the outside the house
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1 vote
1 answer
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What kind of ceiling fan control type do I need?

I'd like to buy a new ceiling fan to replace an existing one. The one I have has one switch that controls the light and dimmer, and another on the other side of the room that controls the fan and fan ...
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Steam in bathroom

My bathroom originally vented into the attic instead of outside. I didn't have too much steam with this. A 3 inch vent was put on and exhausted out through the soffit. It wasn't effective. A new fan ...
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2 votes
3 answers
104 views

Finding a good smart switch 3 or 4 gang but the box is sized for 4 switches?

I have an outlet box size for 2 switches wide, the width including the plate is 5" My existing one has 3 side ways toggle and a light switch. However, I want everything to be smart. I would ...
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Blower fan comes on once a week

I have basic two wire thermostat, one for power on for neutral. I only have central heat, not air. My blower fan kicked on the last two sundays, but itself, but not today which is sunday. It only ...
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1 vote
1 answer
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Can I put a box fan in a chimney to help circulate out hot summer air?

I have a classic brick chimney for a wood fireplace only (i.e. no hot water tank or other things sharing the stack). In peak summer heat, the interior of the upstairs is well above the exterior ...
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1 vote
1 answer
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How should I connect my bath fan to the three cables in the ceiling?

I have red-white-black wires coming from my switch and 2 sets of house wires (black-white-grnd). Can someone tell me how to tie these together with a new fan that has two white, one black and one blue ...
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3 answers
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Wiring a timer for a fan with No neutral wire

Ok. I can’t figure it out. I’m on my third timer switch, this one not requiring a neutral. When I hook it up to the fan stays on and none of the timer buttons are operable. Please see the below ...
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1 answer
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Reuse Cooker Extractor fan 4 wires into 3 Pin UK plug?

I have recently removed a extractor fan above my cooker. Instead of wasting the fan I have taken it out to reuse as a personal fan in my room. Yes I could just buy a fan, but I hate the idea of ...
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2 answers
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Is it beneficial to have a gable attic fan even though it's not attached to an external vent?

The gable vents/shutters are in an area of the attic that's not easily accessible for me. Ideally that's where the attic fan would go. Is there a benefit for me to still run a powered attic fan as ...
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2 answers
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is there a vibration dampener for a pancake box?

I live in a relatively new house, about ten years old. The builder installed a fan in the downstairs living room using a pancake box mounted to a beam. Because of this, running the fan causes a loud ...
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3 votes
1 answer
544 views

New Kitchen extractor fan stopped working

Brand new kitchen extractor hood fitted last week. The lights still work, but the fan won’t turn on, so I assume not a fuse problem. The extractor duct was about 5mm too large to fit in the top of the ...
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1 answer
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What is the purpose of the fan guard center shield?

It's not connected to the fan axis or anything else important, just sits there attached to the guard from the outside with three screws. Can I remove it or is there some clever aerodynamic purpose to ...
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3 answers
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How can I get my building owner to deal with a mold issue?

I live in an apartment with no ventilation to the outside. The bathroom fan is ductless as is the range fan in my Kitchen. I have a mold issue in the apartment due to the lack of proper ventilation ...
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Fan Setting For Portable Air Conditioner

Optimal fan speed for a window air conditioner has been addressed before. However, the thermodynamics are different for portables. A single hose portable (dual hoses too big for small rooms) sucks ...
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0 votes
1 answer
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Attic Fan for Carrier 58STX110--14122

I have a Carrier furnace in my attic (Model 58STX110--14122). Does this unit include an attic fan? There is a fan that used to turn on during the day when it's hot and turns off when temperatures ...
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-1 votes
1 answer
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fan transmitter [duplicate]

I went to a realitives home who has a cealing fan installed . I noticed the cealing fan has a set up of what I’m trying to accomplish, with remote and power is controlling a lap in the room .I ...
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1 vote
0 answers
153 views

Heat Pump Compressor not turning on in heat mode

UPDATE 29-MAY-2021: So I have it working now, after playing around with some of the settings in both the Nest Thermostat and the Zone Control Panel. In the "Pro Setup" section of the Nest, I ...
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0 votes
1 answer
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How can I mount a window fan in a very tall slider?

I am looking for a way to mount a window fan like this one in my apartment. The only windows my unit has measure 70" x 58" (H x W) with 29" wide slider panel which opens horizontally. ...
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What size duct for make-up air?

I have an industrial exhaust fan venting heat from the top of a stairwell. It is a CentriMaster ModelPRN PRN110 with specification sheet here: http://www.acmefan.com/InformationFiles/ModelInformation/...
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1 vote
2 answers
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Exhaust fan dripping?

Just finished my basement. Went to take a shower in my new shower for the first time, and was shocked to see the exhaust fan dripping here and there while showering. I installed everything on my own - ...
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-1 votes
1 answer
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One switch, two lights, add a third always-on

I have an existing light switch (single-pole) that turns on two LED lights on the front porch. I’m considering converting the last light in the series to a ceiling fan and adding an additional porch ...
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Kitchen vent damper in condo

Forgive me - first timer here, but I'm striking out on Google searches. I live in a condo with central venting for the bathrooms & kitchen. The microwave is installed above the stove and hooks ...
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Fan running 24 x7 despite Thermostat set to Auto for Fan

I have moved into a new condo unit in Toronto and it seems my fancoil keeps running 24x7 despite the thermostat set to Auto for Fan. Even when the temperature is set to a temperature lower than the ...
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0 votes
1 answer
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Attic fan installation

I am wanting to install an attic fan over the gable vent and had a couple questions. There is a 2x4 running through the center of the vent. Can I cut this in the middle so it doesn’t block the fan? I ...
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0 votes
1 answer
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How do you wire a current sensor to multiple fans?

I have two booster fans that I only want to run when the main HVAC blower fan is on. Each fan will have its own speed controller. How do I wire them both to the same current sensor switch? Should I ...
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-1 votes
1 answer
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Can replacing a low voltage wire actually make the air handler blower blow more air?

Our system stopped cooling, it is 11 months old. The service tech found a low voltage wire running from the handler to the outside unit bad. He showed me the wire was not connected but dead now, after ...
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electrical ceiling fan wiring

I am trying to install a ceiling fan that had 2 separate switches to a dual control lutron dimmer switch . I blue wire (hot) directly wired to the blue fan wires. I have a red wire that is in the ...
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HVAC auxiliary fan relay wiring help

I set up a two zone whole house dehumidifier system with 24v no/nc dampers, primary and secondary zones. the primary zone is controlled by a Aprilaire model 76 external control and the secondary zone ...
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1 vote
3 answers
242 views

Size of insulated flex hose needed to install for bathroom exhaust?

What size of insulated flex hose do I need to install for bathroom exhaust. Fan is 110cm. Length of hose in attic is approx 15-20 ft, going just about straight to the exit site. Bathroom size is ...
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3 led pot light in bathroom blink when turn fan on for a second but stay off

I have 3 led pot in my bathroom with my pot light off I turn my fan off and on some times the pot light blink for a second but stay in the off position
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