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Old 10-10-2019, 01:58 AM   #1
JMF
Junior Member
 
Brand: Thor Motor Coach
Model: Siesta SJ
State: North Carolina
Posts: 17
THOR #16303
Ceiling lights stopped working

We have a Thor Siesta SJ24. Can anyone tell us where the 12v fuses are for the ceiling lights? All the other lights are working. The fuse box under the bed does not state any light fixtures. Is there another fuse box somewhere?
Thanks.
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Old 10-10-2019, 01:37 PM   #2
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 916
THOR #2631
I think your coach is a Sprinter class which I know nothing much about but if you are looking for fuse assignments maybe this link will help.



My 2019 Sprinter fuse box - iRV2 Forums
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Old 10-12-2019, 05:39 PM   #3
JMF
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Brand: Thor Motor Coach
Model: Siesta SJ
State: North Carolina
Posts: 17
THOR #16303
Thanks. I think there's only one fuse for all the lights. So it wasn't the fuse causing the problem.
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Old 10-12-2019, 06:01 PM   #4
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 916
THOR #2631
So you got it fixed? Care to share the solution in case someone else has a similar situation/coach? Glad you are seeing the light once again.
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Old 10-12-2019, 11:56 PM   #5
JMF
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Brand: Thor Motor Coach
Model: Siesta SJ
State: North Carolina
Posts: 17
THOR #16303
I'm afraid not. But my fix-it husband checked the voltage of that connection at the G8 box under the bed and checked the settings on the Firefly, both of which are good - so it may be as simple as one light is bad and perhaps they are connected in serial (like Christmas tree lights). Hoping that's the case otherwise it could become a difficult one to find. We will talk to Thor Monday. In the meanwhile there are other lights in the coach so its not stopping us from camping.
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Old 10-13-2019, 01:32 AM   #6
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 916
THOR #2631
Hi, thanks for the update. Don't give up. Typically multiple ceiling lights are wired in parallel not series. It could be something as simple as a bad connection; bad ground; broken or loose wire/connector etc. If you suspect the Firefly control system, give Firefly tech support a call as I understand they are very helpful. Good hunting.
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Old Yesterday, 12:24 AM   #7
JMF
Junior Member
 
Brand: Thor Motor Coach
Model: Siesta SJ
State: North Carolina
Posts: 17
THOR #16303
Update! We got a new upgraded Firefly Multiplexer today. Guess what ... when the new one was installed the ceiling lights magically started working. Yay!
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Old Yesterday, 01:25 AM   #8
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 916
THOR #2631
Great news.......I guess Firefly shed some light on your problem after all. Thanks for updating the forum.
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