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Various things to check: Is there a way for air to ENTER the bath? A fan will expel air, but only when there is makeup air to replace it. Make sure there is a sufficient gap under the bathroom door. (An easy way to test this issue is to run the fan with and without the door open and see if there is a difference) as others have stated, make sure the fan is ...


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The wood framing member looks to be similar to a 2 x 4 (inch) commonly used here in the States as wall studs and such. From what is obvious from the photo that leads me to believe it will support the almost 50 pound fan is the wood top plate is on edge rather than oriented on its' face (flat). The wood plate is much stronger in this direction and can with ...


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(1) The fan as shown in the photo is upside down. Mounted in this position, the weight of the fan will pull the plate away from the beam. Turn it over so the weight will push the plate against the beam. (2) The beam will hold the fan but the weight will apply a twisting force to the beam. To overcome this, you should mount a board vertically from the beam ...


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That looks like a standard A/C dimmer switch circuit: http://forum.allaboutcircuits.com/threads/potentiometer-w-switch-wiring-for-lamp.79664/ I'd imagine you could replace it with a standard A/C variable motor control like this one: ...


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As cheesy as the tape looks, it will do ok, It is made to resist the temperatures that blow through the duct work. At worst it may fatigue over time, but I think it will remain intact. To be certain, later when it is running check it out up in the attic. If the plastic shroud that has the tape on it is jiggling, the tape may fatigue. Aluminum can't take a ...


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If this problem just started (the furance hasn't always operated like this), then it's likely an open high limit switch. If it's a manually resettable limit, you can try resetting it yourself. If it's an automatic reset device, you'll probably have to replace it.


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It could be that your control is set to "Auto" instead of "Heat". Try changing the switch to "Heat" mode, adjust the thermostat set-point to slightly higher than the current room temperature & wait a minute or so for the furnace to turn on. After the set-point is reached, the fan should run a bit longer (less than 2 minutes) to blow the remaining ...



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