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12v Lights Flicker


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6 replies to this topic

#1 djpauls

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Posted 23 March 2013 - 01:22 PM

2001 Dynasty plugged into power and interior lights flicker.  Originally noticed when just 1 fluorescent light was on.  Turning multiple lights on minimizes the problem.  Any ideas?


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Don & Sue Paulson
Hickory Corners, Michigan
'01 Dynasty 38 PDQ w/Cummings ISC350
'12 Ford Edge AWD toad w Air Force One and Roadmaster Tow Bar


#2 desertdeals69

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Posted 23 March 2013 - 03:06 PM

12 volt or 120 volt?


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#3 djpauls

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Posted 23 March 2013 - 03:22 PM

12v lights flicker only when plugged into 110v.


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Don & Sue Paulson
Hickory Corners, Michigan
'01 Dynasty 38 PDQ w/Cummings ISC350
'12 Ford Edge AWD toad w Air Force One and Roadmaster Tow Bar


#4 wolfe10

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Posted 23 March 2013 - 03:57 PM

Is it a rapid flicker, or just dims for a second every couple of minutes?

 

If the latter, many chargers turn off  charge (therefore voltage lowers) for a second or two so they can "sense" the true level of battery charge.


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Brett and Dianne Wolfe
2003 Alpine 38'
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Member, FMCA Long-Range and Development Committee 2007-2009 and 2014-
Moderator, http://www.dieselrvclub.org/(FMCA chapter)


#5 DickandLois

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Posted 23 March 2013 - 03:59 PM

Hi Don, My first thought would be a contact(s) arcing on the 12 volt relay or solenoid. Depending on the way you coach is wired.Monaco has used both Latching Relays and solenoids often together depending on model and year of the coach.

One can disconnect fro m shore power and open the 12 volt battery grounds, then use a nail emery board to clean the contacts and see if that clears the problem.

If not, then one needs to look at other possibilities. so start at the simple and inexpensive first.

 

Rich.


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#6 djpauls

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Posted 23 March 2013 - 04:27 PM

It is a rapid flicker.  I have had the problem for about a week. Drove about 4 hours today and when initially hooked up to shore power the flickering lasted about an hour.  Currently not flickering.


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Don & Sue Paulson
Hickory Corners, Michigan
'01 Dynasty 38 PDQ w/Cummings ISC350
'12 Ford Edge AWD toad w Air Force One and Roadmaster Tow Bar


#7 wolfe10

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Posted 23 March 2013 - 05:18 PM

Sounds like it could be a 120 VAC (60 cycles per second) issue bleeding over to 12 VDC system.

 

Set your voltmeter to 120 VAC and check at the battery or 12 VDC outlet.


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Brett and Dianne Wolfe
2003 Alpine 38'
Moderator, FMCA  Forums
Chairman, FMCA Technical Advisory Committee
Member, FMCA Long-Range and Development Committee 2007-2009 and 2014-
Moderator, http://www.dieselrvclub.org/(FMCA chapter)





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