Mains unit getting hot

Discussion in 'Tech/Mech General' started by cbrown1360, Aug 4, 2016.

  1. cbrown1360

    cbrown1360 Funster

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    The mains unit located under one of the bench seats on my Elddis Accordo 105 is getting hot and giving off one of those "electrical" smells. I am on EHU with only the fridge drawing power. I believe the mains unit has a cooling fan but this hasn't tripped in yet either because it doesn't work or because the mains unit is not hot enough to trip it. I've had the van from new for over 2 years and have only noticed this in the last couple of weeks. Is this normal or anything to worry about?
     
  2. Techno

    Techno Funster Life Member

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    Any pictures? is it a CBE unit.
     
  3. Nirvanauk

    Nirvanauk Funster

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    Not sure if this is relevant or not but my master unit was doing the same and it turned out to be a knackered battery and the master unit was overheating trying to charge it.
     
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  4. Techno

    Techno Funster Life Member

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    My thoughts exactly and if CBE equipment is fitted it will be a 516 charger (grey box with a red illuminated on/off button)
     
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  5. Tootles

    Tootles Funster

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    The transformer in our boat mains unit charger did the same, then started smoking. Keep your eye on it, sounds terminal.........:(
     
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  6. cbrown1360

    cbrown1360 Funster

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    Picture of unit attached.
     

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  7. Techno

    Techno Funster Life Member

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    I really don't recognise that unit but I doubt it has a fan. I can see clearly that the left hand breaker feeds the fridge & the charger but where is the charger?
     
  8. Techno

    Techno Funster Life Member

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    Personally I would check the tightness of all connections but in your position I would put the fridge on gas and turn off the charger/fridge switch and see if the smell goes within the hour. Also note the battery voltage with the charger off
     
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  9. Khizzie

    Khizzie Funster

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    Surely that being the distribution box it really shouldn't be getting even slightly warm unless there is a faulty main connection into it.
     
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  10. cbrown1360

    cbrown1360 Funster

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    Another picture from above.
     

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  11. Techno

    Techno Funster Life Member

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    Ventilation doesn't necessarily mean it is fan assisted
     
  12. TheBig1

    TheBig1 Funster Life Member

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    most likely the battery charger working hard
     
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  13. cbrown1360

    cbrown1360 Funster

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    As suggested, I've put the fridge on gas and turned off the fridge / charger breaker. The battery is showing a charge of approx. 12.3V. I'll report back later on whether it's still hot or smelling. Thanks for your help.
     
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  14. Techno

    Techno Funster Life Member

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    12.3 is low, what have you got turned on?
     
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  15. Tootles

    Tootles Funster

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    Thats a charger transformer in there methinks.
     
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  16. hilldweller

    hilldweller Funster Life Member

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    Does the battery feel hot ?

    Whatever you do don't leave the vehicle with it like that.
     
  17. cbrown1360

    cbrown1360 Funster

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    Don't know if it's relevant but if I turn the fridge / charger breaker back on there is something in the mains unit that sounds like a fan that starts running but it stops after about 20 seconds.
     
  18. cbrown1360

    cbrown1360 Funster

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    Nothing turned on - from memory the battery charge has never been more than 12.5V.
     
  19. Tootles

    Tootles Funster

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    That could very well be the transformer plates vibrating, as ours were. As Brian says, don't leave it switched on when your not around. If it stinks, it's bu**ered.
     
  20. Techno

    Techno Funster Life Member

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    That can only be the charger. carry on for now and as Brian said feel the battery sides for heat . Keep an eye on the battery voltage
     
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