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Old 10-27-2020, 09:59 AM   #1
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32SA Awning Light

Hi,

On our 2019 32SA the awning extends and retracts nicely, but the light strip does not go on.

Here is what I know
  • Model number 910BN20.001UT (who makes this? The Google returns no matches)
  • When I turn on the Awning Light switch, there is a good size current draw (noted on my Victron DC monitor) of about 5a. Then it settles down to maybe .2-.4 a)
  • The current through the wire in the back bracket of the awning measures around 50-70 ma (using a clamp) with the switch on and the voltage is around 45mv. It is 0 when off. [The wires in the front bracket seem to control the motor.]
  • The voltage at the coach g6 control panel with the connector (3-4) removed is 13.24 (same as all 'on' pins) but with the connector in place the awning light pin voltage is around .5 vdc, other pin voltages (e.g. Dinette) are all 13.24.
  • The indicator lights for the awning light are on at the switch and the Spyder screen diagnostics page and the G6 leds when the switch is on (i.e. the CAN net and Spyder relay think it's on and above readings confirm that.
All testing done during daylight hours. I guess I assume there is no day/night setting built into the awning?

It looks like something absorbs the initial voltage (e.g. a capacitor charging) but then does not use much power afterwards.

And, the light strip never glows.

Any ideas on what is happening?
Any ideas on who to contact?

[I tried Tiffin but the tech didn't know about the light wires nor what bracket they were in.)


tia,
paul
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Old 10-27-2020, 10:18 AM   #2
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We have the same issue, going to wait until we go to Red Bay to fix it.
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Old 10-28-2020, 12:48 PM   #3
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Paul, that does sound like the LED strip may be defective. You should be able to get to the power plug in the extendable part of the awning. The wires run down the awning arms to the outer enclosure. You could try applying 12v directly to the LED strip to see if it works.

Just FYI, your awning will be either Carefree or Girard. Tiffin has changed most models to Girard awnings but some may still be Carefree.
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Old 10-29-2020, 08:23 AM   #4
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Thanks for the ideas Lt Dan.

I'll go out this morning and take some more measurements to see what the resistance is across the line going to the LED and then maybe inject 12VCD to see what happens.

I assume there is some sort of slip ring to get the power to the LED strip (and the motor too)? Maybe the failure is there (moving part)?

Taking the awning apart is not on my todo list, at least until the motor stops; and maybe if we get near Red Bay, i'll queue up for a fix.

The Admiral has pointed out a few time that this is not exactly a high priority ToDo item.

tnx,
paul
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Old 10-31-2020, 12:15 PM   #5
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After much testing, I'm pretty sure now that the wires are shorted somewhere from the leads on the awning bracket and the G6 connector. Thus they both go to ground. The incoming wires under the bathroom sink from the outside seem to just go down and feed directly under the floor tile where the could chafe of get nailed into (i.e. no proper routing). It's difficult to see though.

The lights work fine so all I need to do is run a Plus (yellow) wire from the G6 relay, out the back of that compartment, down and over to the tanks area, up into the head compartment, then over to under the sink and attach it to the line that feeds the thru-wall wire to the bracket.

Any ideas on this would help (2019 32SA).

tnx for the help,
Paul
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Old 11-03-2020, 01:32 PM   #6
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Solved

Followup on this project... [longish story]

After some more diagnostics I figured the short was between the under sink area and the G6 distribution module. So I clipped the DC+ wire under the sink and measured the resistance from outside. It was 0 ohms. So, the short was not between the sink and the G6, but rather from the awning bracket to the sink.

I unscrewed the bottom of the bracket and discovered the problem:

Tiffin had not aligned the hole in the bracket with the hole in the side of the coach and the wires ended up getting crushed. To make it worse, they tried to make a new hole in the bracket mount, but a) left a very ragged hole with sharp burs, and b) still misplaced it so that the wires still went out the coach side, got crushed, and came up into the sharp hole where they were cut and shorted.

In short, I put a third hole in the correct spot, smoothed it out, and then fed the wires easily to the awning light wires in the bracket.

In the picture

'1' is the wire cuts - small but still a short against the rough hole
'2' is the hole in the coach side
'3' is the rough hole in the bracket.

So for any 32SA owners with non-functioning awning light, check the hole alignment first.


tnx,
paul
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Old 11-04-2020, 04:56 PM   #7
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32SA Awning Light

Thanks for the post on your work! Iíll bookmark it his for future reference.
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