12 Volt Problems

Discussion in 'Tech/Mech General' started by gromit, Jun 2, 2013.

  1. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    hi every one hope one of you can help was out in motorhome last week all working find then yesterday no red light os status ariel ? no ignition at oven ?and no lights no water heater control panel but every thing elase is working fine on 12v or 240v checked all fuses that i can find ,at the charger the water heater is a truma which only runs on 12v please help thanks
     
  2. WillH

    WillH Funster

    Joined:
    Feb 9, 2008
    Messages:
    1,618
    Likes Received:
    1,291
    Location:
    SW Scotland
    Sounds like the leisure battery or charger has died.
     
  3. Wildman

    Wildman Read Only Funster

    Joined:
    May 30, 2008
    Messages:
    15,458
    Likes Received:
    8,598
    Location:
    Ilfracombe, Devon
    battery will run most lights down to a stupid low level. check the battery voltage at rest and then with the engine running if it does not increase you have an alternator / connection/ charger problem if it does increase. that rules out the alternator. I assume you have solar power it is possible the regulator is shot and you have flattened the battery whilst stationary. What is the battery reading at rest before running the engine and what is it reading at night when there is no solar power boosting it.
     
  4. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    hi thanks would you still say so although both batterys are full and both charging all 12volt sockets are working ok ?
     
  5. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    altinator is charging fine both battery levels are good and dont have solar
     
  6. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    IF some things are working on 12v and some not then you have either a blown fuse (search) or possibly a wire or two has become unattached at the control panel -undo CP and check they sometimes screw a few wires together and fit into panel :Wink::Smile:
    terry
     
  7. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    thats what i was thing but i can find any more fuses are there any fuses in the truma heater ?or were else arethey likely to be ?
     
  8. voyagerstan

    voyagerstan Read Only Funster

    Joined:
    Aug 7, 2011
    Messages:
    323
    Likes Received:
    211
    Location:
    torquay sometimes
    we had problem with water heater turned out there was a fuse in the switch whitch had blown . :Wink: stan
     
  9. MrMotorhome

    MrMotorhome Read Only Funster

    Joined:
    May 19, 2009
    Messages:
    640
    Likes Received:
    1,128
    If you mean the status booster box where the lead plugs in, ours broke (light went off) for some reason - I finally had to replace the box (£12.50) :thumb:
     
  10. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    Theres a fuse on the control board on the heater,but if other things are not working I would look elsewhere -to me it is obviosly a few wires come adrift which leads me to the control panel as that is the most likely place where a few wires would be put together for a few wires to come apart :BigGrin:Just as a added bit the Truma should be wired on it's own :thumb::BigGrin:---Because I am so great with leccy (not) I had Paul make me a diagram of what turns what on etc :thumb: not that I know where it is squirreled away or anything :BigGrin:Depending whats dead I know which fuse etc, anything more and I wait for Paul :BigGrin:
    terry
     
    Last edited: Jun 2, 2013
  11. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    the only things that are dead is the ignition forthe cooker the heater including the control panel for itantthe status areil
     
  12. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    Well short of a rewire you need to follow the wires back :Smile:If all 3 things are out then it suggests to me as already said the back of the control panel -the heater should be on its own but chances are whoever wired the van coupled the ignition for cooker and status ariel to it :Wink:
    terry
     
  13. TheBig1

    TheBig1 Funster Life Member

    Joined:
    Nov 27, 2011
    Messages:
    7,224
    Likes Received:
    9,612
    Location:
    Dorset
    if your lunar motorhome is wired the same as mine, there is a second fusebox hidden in the floor compartment behind the cab seats.
     
    • Like Like x 1
  14. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    realy can you please tell me were
     
  15. TheBig1

    TheBig1 Funster Life Member

    Joined:
    Nov 27, 2011
    Messages:
    7,224
    Likes Received:
    9,612
    Location:
    Dorset
    behind the seats, there is a panel in the floor about 4ft by 6in. look for a join in the carpet. ours has a piece of string to pull on and it hinges forward. the fusebox is on the drivers side on mine. it supplies the fridge and some other things but cant remember what. its a useful hidden compartment and although only a few inches deep can conceal many items from the opportunist thief
     
  16. rainbow chasers

    rainbow chasers Read Only Funster

    Joined:
    Oct 30, 2009
    Messages:
    3,747
    Likes Received:
    1,720
    Location:
    Mid Cornwall
    Maybe behind the passenger seat, tall bo with little flap/lid that opens. Check under drivers seat as well.

    If you really cannot find it, then go to the control panel and test for power on the inbound supply to the relative switch - usually marked, or easily traceable from position. If there is no power on this, then it will be another fusebo further up - if there is power, it will be within the fusebo or faulty switch.

    I would guess it being a fuse before the control panel, as usually the power for the oven and water heater/aerial all come off auilary supply on the control panel.
     
  17. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    thanks will have a look at that wehave alunar a601
     
  18. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    try googling lunar champ fusebox and it comes up with a few places ie behind driver/pass seat also under bench seat and below fridge in a compartment that fridge has to come out to get at :Eeek::Smile: seems like belgum makers stick them anywhere
    terry
     
  19. smiffy502000

    smiffy502000 Funster

    Joined:
    Aug 5, 2012
    Messages:
    218
    Likes Received:
    118
    Location:
    sutton coldfield
    12 volt problem

    hi. I had a similar problem, checked all the fuses all seemed ok. scratched head for a while . when I say checked fuses, it was only a visual check. then did a continuity check with a meter on every fuse,and sure enough one had gone,.. cant always spot a dead fuse just by looking. might be worth a check..:BigGrin::BigGrin:
     
  20. gromit

    gromit Read Only Funster

    Joined:
    Dec 23, 2012
    Messages:
    97
    Likes Received:
    6
    Location:
    lincolnshire
    well you wont belive this just been down tomotorhome and now everything is working ??????? so idont no is there any timed trip switches ?
     
Loading...

Share This Page