Forum Discussion

Jimfromvirginia's avatar
May 19, 2019

Converter Location

I have a Montana 3455SA that either has battery issue (brand new but testing tonight) or converter issue. However, I cannot locate the converter. Does anyone have any idea where Montana has hid this at?
  • Should be with or behind your 12 volt fuse panel. usually on the floor under a fridge or stove,
  • Follow the shore power plug, should be behind that. In my FR I had to remove a panel in the basement it was behind that. If you listen you can hear them hum.
  • RoyB's avatar
    RoyB
    Explorer II
    Everytime some one mentioned BATTERY ISSUES it is always a good idea to check the battery installation...

    I always look at the battery case and look for the word 'NEG' or the symbol '-' and make sure this is the terminal that goes to frame ground... This is regardless of the battery cable color...

    The RV trailer should be using the BLACK and WHITE colors where white is the NEGATIVE FRAME GROUND cable. However since this is a battery installation sometimes you see those wires have been changed to the automotive colors of RED and BLACK where BLACK would be the NEGATIVE cable color. Very easy to get it hooked up backwards which blows inline fuses and one thinks the converter is not working. Another quick test for the converter is to not have the battery in the circuit and connect to shore power. If the ceiling lights work normal then the converter is working. Both the Converter and the Battery feed the same point on the 12V Power Distribution Panel so that the trailer 12V items can operate form shore power or off the battery. When on SHORE POWER than this connection also charges the battery...

    Something like this at any rate haha...

    Roy Ken
  • In our Fuzion the converter was located behind one of the walls in the basement. A real pain to get to.
  • “Another quick test for the converter is to not have the battery in the circuit and connect to shore power.”

    Good idea.
  • Jimfromvirginia wrote:
    I have a Montana 3455SA that either has battery issue (brand new but testing tonight) or converter issue. However, I cannot locate the converter. Does anyone have any idea where Montana has hid this at?



    If it is where it is in my Montana, its behind the wooden grill in the face of the steps going up into the bedroom. Fairly easy to get to
  • Ours is Under the steps.. just unscrew the panel covering the verticle part of the steps Good Luck and Happy Camping !!
  • cummins2014 wrote:
    Jimfromvirginia wrote:
    I have a Montana 3455SA that either has battery issue (brand new but testing tonight) or converter issue. However, I cannot locate the converter. Does anyone have any idea where Montana has hid this at?



    If it is where it is in my Montana, its behind the wooden grill in the face of the steps going up into the bedroom. Fairly easy to get to


    Found it as stated. Problem is it is mounted in a frame and cannot get to bolts in back. Also where at the 2 40 amp fuses everyone talks about?
  • Jimfromvirginia wrote:
    cummins2014 wrote:
    Jimfromvirginia wrote:
    I have a Montana 3455SA that either has battery issue (brand new but testing tonight) or converter issue. However, I cannot locate the converter. Does anyone have any idea where Montana has hid this at?



    If it is where it is in my Montana, its behind the wooden grill in the face of the steps going up into the bedroom. Fairly easy to get to


    Found it as stated. Problem is it is mounted in a frame and cannot get to bolts in back. Also where at the 2 40 amp fuses everyone talks about?


    Can’t help you there , mine came out pretty easy, been awhile but the screws holding it down were pretty accessible . As far as the fuses ever dealt with them .