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Old 09-24-2009, 10:05 PM   #1
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Hot master dimmer(Aspire from lowes)


I have installed this master dimmer
http://www.lowes.com/lowes/lkn?actio...K-L&lpage=none

along with this accessory
http://www.lowes.com/lowes/lkn?actio...K-L&lpage=none

i shot the master dimmer with a sperry laser thermometer and it shows 100 degrees in the middle of the switch. only the master is getting hot.
a liitle worried here. Also, there is a very low hum to it. i have to put my ear right next to it but its there.

other than checking connections, would this be normal?

i was wondering if anyone had any experience with these dimmers?

Ive got it in a double gang box with a regular switch on the side of it that controls some other lights. with this dimmer i didnt have to snap any sides off.. ive got it hooked up to (7) 50 watt halogen Par 20 bulbs.


Last edited by rustic; 09-24-2009 at 10:54 PM. Reason: added info
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Old 09-24-2009, 10:09 PM   #2
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Hot master dimmer(Aspire from lowes)


the very bottom of the left corner of the switch shows 102

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Old 09-25-2009, 07:15 AM   #3
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Hot master dimmer(Aspire from lowes)


100 deg F is not warm at all. Dimmers have a large aluminum heat sink because they produce a lot of heat. It will be warm to the touch, and they do sometimes hum. I assume you are not overloading the dimmer??? They are usually rated at 600 or 1000 watts. Add up the wattage of the bulbs on that circuit. The total should not exceed the limit of the dimmer. The closer you are to the dimmer limit, the warmer will be the heat sink.
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Old 09-25-2009, 07:30 AM   #4
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Hot master dimmer(Aspire from lowes)


thanks Bill.

it is a 600 watt dimmer and i have 350 on it now.
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Old 09-25-2009, 07:40 AM   #5
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Hot master dimmer(Aspire from lowes)


The "master" unit is the one that does all the dimming. The "slave" unit only reports to the master unit, and does not do any actual dimming.

It is normal for such dimmers to be warm to the touch. One way to minimize this effect is to use a thick, metal wall plate instead of a plastic or nylon one.

The metal wall plate acts as an extension of the heat sink, and helps to dissipate the heat better.
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