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Old 09-28-2009, 07:39 AM   #11
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Default Re: Another LED bulb question!

Thanks for all your advice Marko And Mike.
Plugged "Beebop" (as in "bopping along in our B!) into the grid, but it did not make any difference for that light unit, the LEDS still would not work.
The unit that does not "like" the LEDs is one of three identical units. They are typical older RV units...flush with the ceiling...a bulb on each side covered with those plastic snap on covers and the on/off slider switch in the middle. There is a set at the front, in the middle and near the back door.
It is the back door one that does not like the LEDs, only the incandescents. When I took the LEDs out of that unit I tried them in the other 2 units and they worked fine. I also took a very close look at the bases where the bulbs go in and compared them to the other 2 fixtures. The fixtures looked identical.
So now I am just plain puzzled!
Anymore suggestions?
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Old 09-28-2009, 02:42 PM   #12
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Default Re: Another LED bulb question!

Me stumped. I'd say the low voltage theory is the best one probably, although I'd think it would
take more juice to get an incandescent glowing, than an LED.
Sounds like a trip to the Pleasureway website and ask them a "tech" question, unless any other
PW owners on here have any ideas. Here's a link to their "contact us" page.....
http://www.pleasureway.com/contact_us.php

You might also want to try RVNet for an answer. They're pretty good over there, too.
http://www.rv.net/
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Old 09-28-2009, 03:28 PM   #13
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Default Re: Another LED bulb question!

Must be Polarity. Positive & Negative.

Drop the fixture, reverse the wires and try again.

Unlike incandescent, led's require correct polarity.
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Old 09-30-2009, 04:51 AM   #14
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Default Re: Another LED bulb question!

Thanks guys ....I will try reversing the polarity first and see what happens. If that doesn't work, I may just leave the incandescents in...and not use that fixture when we are drycamping.
Besides, with 9 new 18 LED bulbs showering our interior with light...another 2 might just make us go BLIND!
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Old 10-18-2009, 12:59 PM   #15
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Default Re: Another LED bulb question!

Quote:
Originally Posted by markopolo
Must be Polarity. Positive & Negative.

Drop the fixture, reverse the wires and try again.

Unlike incandescent, led's require correct polarity.
I don't think there's a polarity indicator on the festoon bulbs I used in the door and
cab courtesy lights. I just popped them into the clips and they all work fine without
worrying about the polarity.
Coincidence, or is there a difference between the leds in a festoon (fuse-shaped 4410) led
versus an 1141/1156 type of led?

Just curious.
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Old 10-19-2009, 09:49 PM   #16
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Default Re: Another LED bulb question!

UPDATE>>>Well...reversed the polarities as Marko suggested. No luck. LED bulbs still did not work. So I will just leave in the incandescent bulbs and be frugal with their use. The light unit is right at the back door, so it is not one we use a lot.
Thanks everyone for your advice and suggestions in trying to figure out my LED bulb issue.....really appreciate this forum.
Cheers,
Mamello
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Old 10-19-2009, 11:17 PM   #17
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Default Re: Another LED bulb question!

Mike - I don't know anything about how the led festoon bulbs work.

Mamello - I'm sorry that you went through that extra work - I thought for sure that the problem must have been polarity. I'd really like to know the answer to this.

-------------------------------------------------
Note: Here's more info re: LED polarity http://en.wikipedia.org/wiki/LED_circuit
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Old 10-20-2009, 02:07 AM   #18
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Default Re: Another LED bulb question!

"Come, Watson, come!" he cried. "The game is afoot." - Sherlock Holmes.

I love a mystery too. And it drives me nuts when a puzzle like this eludes resolution.
I'm leaning back to the low power theory marko posted a while back.
Could there be some fusing or something which lowers power to the fixture
when it senses a low/no voltage draw (like from a replacement LED)?
I'm trying to think of a reason why you'd want to drop power to the rear overhead fixture
if the bulb wasn't working properly. Fire/spark/short hazard near propane/fuel maybe?
Mamello, have you tried contacting PW and bouncing it off them?

Another thought. Maybe the bulb bases look the same but aren't exactly the same height.
If you put the incandescent bulb beside the LED on a table top bases down, and get down and look
at them from the side, do the little nubs that keep them in place when you press them in and twist,
appear to be the same height off the table top? I had a problem with a back up light in the Chev
tailight assembly and the replacement wasn't quite touching the center contact in the bottom of the
fixture. I had to pull on the little tab inside the base of the fixture with a pair of needle nose pliers
to get the base/tip of the bulb to make a good solid contact with it. Or, you might have to tug the tab
in the base of the receptacles up/out a bit to make contact with the bulb base. Just a thought.

BTW Mark, I picked up a new isolator in Ft. Worth ($124 all in) a week ago, while "passin' through".
Now I have to wait for a dry/warmish day to try to get down under the front end
to try to replace the old one. I wish there was a drive in DIY garage with a pit somewhere
near me.
How's the 'trek (pun intended ) east going?
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