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Old 12-30-2011, 02:25 PM   #1
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lutron dimmer light switch w low voltage halogens


Hi, all, and Happy New Year to the best advice-givers in cyberspace!

We have two sets of low-voltage under-cab halogen lights in our kitchen; we RARELY use them. Suddenly one set did not work, and it turns out the Lutron dimming switch is not functioning. I swapped it for a new one, and all is well.

My question: What on earth would make such a switch quit after 8 years of very infrequent use. We have dimmer switches all over the house, all the others receiving much more use... I'm wondering if I should be concerned about something else up the line.

Thanks, and enjoy your holiday.
Vince

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Old 12-30-2011, 02:30 PM   #2
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lutron dimmer light switch w low voltage halogens


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Originally Posted by pdxrain View Post
Hi, all, and Happy New Year to the best advice-givers in cyberspace!

We have two sets of low-voltage under-cab halogen lights in our kitchen; we RARELY use them. Suddenly one set did not work, and it turns out the Lutron dimming switch is not functioning. I swapped it for a new one, and all is well.

My question: What on earth would make such a switch quit after 8 years of very infrequent use. We have dimmer switches all over the house, all the others receiving much more use... I'm wondering if I should be concerned about something else up the line.

Thanks, and enjoy your holiday.
Vince
Low voltage lighting usually requires low voltage dimmers. Either a magnetic dimmer or an electronic dimmer depending upon the type of transformer.

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Old 12-30-2011, 02:55 PM   #3
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lutron dimmer light switch w low voltage halogens


brric: Thanks for the reply. That's very interesting, indeed. The two dimmers installed by the electrician 8 yrs ago are both the Lutron AY-600P (not the AYLV-600P). The transformers he installed have the following label:

Sea Gull Lighting Products
Model 9454-12
Input Black 120V
Output Red 12VAC, 60W Max
Class II

The bulbs are B16120X, which a search online suggest are Xenon 12V 13W bulbs.

The dimmer I just put in is also the AY-600P, like the original. Should I pull it out and replace it? Is it dangerous and should I replace the one still working on the other set of lights? Thanks for your help.

Vince
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Old 12-30-2011, 03:47 PM   #4
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lutron dimmer light switch w low voltage halogens


It is not dangerous. You might fry a dimmer or an XFMR at worst.
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Old 12-30-2011, 05:00 PM   #5
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lutron dimmer light switch w low voltage halogens


If the low voltage lights use an electronic type tranny
Then you need the correct type of dimmer,
The power supply needs to be dimmer compatible,
And the dimmer needs to be special type !
look for words like "leading edge" or "trailing edge"
these are the type of dimmers for electronic type trannys.
Normal ones sometimes work, but usually dont last too long.

Sometimes dimmers can fail for no obvious reason,
theres a lot of crap on the lines that they must contend with
and some cheap dimmers are not able to cope.

A proper spike filter might help here!
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