Forum Discussion

iski4fun's avatar
iski4fun
Explorer
Nov 22, 2020

Converter Question

Good day, 1999 Fleetwood Travel Trailer 25 ft - does this rig have a converter? My interior lights were getting dim even when plugged into shore power. This prompted me to search for a converter to possibly replace because I understood a failing converter could be the culprit (due to not adequately charging the 12v). I couldn't find one, just a basic panel with 12v fuses and breakers for the 120v. I'm wondering if this rig even has a converter. Replaced 12v batteries which helps the dim lights, and I'm keeping them charged with a trickle charger. Is it possible this rig does not even have a converter and the 2 systems are separate? Note: interior lights on the 12v do not turn on at all when batteries are disconnected. Thanks, Bill

50 Replies

  • 2112's avatar
    2112
    Explorer II
    This may help

    Follow the wire from the "B" connection above the fuses or the positive cable from the battery. If there is a converter it will be connected to them.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    iski4fun wrote:
    Good day, 1999 Fleetwood Travel Trailer 25 ft - does this rig have a converter? My interior lights were getting dim even when plugged into shore power. This prompted me to search for a converter to possibly replace because I understood a failing converter could be the culprit (due to not adequately charging the 12v). I couldn't find one, just a basic panel with 12v fuses and breakers for the 120v. I'm wondering if this rig even has a converter. Replaced 12v batteries which helps the dim lights, and I'm keeping them charged with a trickle charger. Is it possible this rig does not even have a converter and the 2 systems are separate? Note: interior lights on the 12v do not turn on at all when batteries are disconnected. Thanks, Bill


    You found it I suspect. You said "Just a basic panel with 12 volt fuses and Circuit breakers" In Every RV I have been in that has a panel like that the converter is behind the panel.. What is the make/model of the panel.. Two common makes are Parallax and WFCO.

    The Parallax 7300 (note spelling may be off) is an intergrated SINGLE stage converter/fuse/breaker panel. 7300T is a two stage. NOTE I say 7300 but it's 73xx with the xx being the max output.

    WFCO is a 3 stage with a high failure rate but it should still float. Just not Bulk charge.

    Also check for one or more 30 amp fuses. they may be blown.. if so unplug for a few minutes. then replace ALL the 30 amp fuses and plug back in
  • It's a MagnaTek Electrical Control Center MODEL 80
    11 12v circuits and 4 breakers
    If the converter is good would the interior lights in the coach work when the battery is disconnected - that is what has me confused.
    I've had that front cover off and couldn't find the converter...not sure what to remove/replace. Thank you.
  • If you need to buy an extension cord, get a very heavy duty one....12 gauge, better yet 10.
  • OK post the model number of that electric panel. Usually they are interrelated.

    Maybe even post a picture.

    Good time to run out and get a portable battery charger to get you through while you sort this out. You need 5 amps minimum and 10+ amps is better. Put it direct on the house battery. Don't forget the extension cord if needed to reach your outdoor outlet or the pedestal.
  • Yes, you will have a converter.

    They are hidden under your power center where the breakers and fuses are.



    Where the louvers are in the pix, that is where the converter lives..

    You will need to remove the front cover and that will reveal the converter on the bottom of the unit.

    It is most likely dead and you can buy just replacement converter to fit in the bottom.

    Post model number of your power center..
  • Almost every RV built in the last 50 years, has a converter/charger. It's usually behind the fuse/breaker panel.
  • If you have a pigtail for 120 volt shore power, at least (at one time) you had a converter. (I call it a load center) Does the TT have a factory installed generator? The panel with your 120 volt breakers/12 volt fuses should have an integral converter/charger. (behind the breakes/fuses) Post the make model for more info.

    Chum lee
  • Every RV has a charger unless someone removed it. It could be behind/intergal to your panel. Unplug AC before investigating.