Red Light On Solar Regulater

Discussion in 'Solar Power' started by Polly Put The Kettle On, May 25, 2015.

  1. Polly Put The Kettle On

    Polly Put The Kettle On Read Only Funster

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    Hia

    Don't shout at me
    I'm not very technicol mindered
    Here's my question

    Had my solar panel on the van roof for about 18 months and have had no problems

    The other day after 238 mile journey lesuire batteries had hardy any life in them and red light is showing on the solar regulated

    Van battery ok

    Now home and batteries completely flat

    Seems all the charge as been sucked out of them

    And red light still on

    Any ideas why

    Thanks
     
  2. icantremember

    icantremember Funster

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    My regulator has a button which turns off the solar feed to the battery and a RED light shows all the time this is switched off .... could yours have a similar button?
     
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  3. Wildman

    Wildman Read Only Funster

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    Hi Polly, is there a voltmeter that you can take readings off of or do you have a multimeter that you can use. Either the batteries are dead, there is a fault with the solar system, a fuse has gone, or failing that something may be short circuit draining all of the power (most common cause of that is mouse damage to the wiring) To check for mouse damage to wiring first cover the solar panel to protect the solar controller. Then disconnect the leisure battery earth and try a continuity between the positive battery terminal and and earth point on the van. If you see any reading then you have a short circuit someplace. If you have a multimeter measure the voltage across the left hand pair of terminals on the solar controller. That will tell you if the panel is charging at all. Measuring the voltage across the middle pair of terminals at the solar controller will tell you if anything is coming out of the controller into the battery. Measuring across the righthand pair of terminals will only show a voltage if the battery level is above a preset level, usually about 10.5V (an under load voltage) below which it switches off power to those terminals. So you should be able to determine first is there any charge from the panel, if not on a sunny day then the panel is shot. If there is and also voltage present on the center pair of terminals then the regulator is probably ok. Another thing to check is the split charge relay from the engine does it work. If you have a pair of leisure batteries then disconnect the solar or cover it then remove the batteries and charge independently overnight. take off charge in the morning and read the voltage across the battery terminals make a note of it, then measure again an hour later it should drop from around 13.8 to 12.8 as the surface charge dissipates measure again one hour later and it should remain at 12.8 if it drops a lot check again 6 hours later if it drops to 10.5v or less the battery is shot and you need a new one.
    To check the split charge relay cover the solar panel and measure across the battery terminals. Then start the engine and measure again, does the voltage increase? if not then either a fuse or the split charge relay is faulty. Obviously every van has a different fuse layout so only people with the same model can advise you where the fuses are located unless you have a decent handbook. I may have missed something, if I have then no doubt someone will be along to correct me very quickly.
     
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  4. JockandRita

    JockandRita Funster Life Member

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    Great stuff Roger, and pleased to see you helping someone in need (y) however, it's all quite daunting if as Polly indicated from her original post, ie.
    Although I consider myself technically minded, even I would feel a bit daunted following all of that. ;)

    Sorry Polly, other than it should be a green light for charging, and red for not charging, I am unable to offer any assistance. :(

    Good luck with it. (y)

    Jock.
     
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  5. andy63

    andy63 Funster

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    Hi. It might help if you posted a picture or named the type of controller. .. It might be as simple as Brian has said... but without knowing if it's the same controller he can't be sure..
    Just had a look at my controller instructions and it indicates a steady red light under the battery symbol indicates an over discharged battery... you know that already :).. so all I can suggest is as wild man has said check the panel voltage with a meter to make sure they are producing... If that's right the control may be faulty...or you have a drain on your batteries the panel can't keep up with..
    Ta Andy.
     
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  6. irnbru

    irnbru Funster Life Member

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    I cant help sorry but a picture can read a 1000 words. Always try to post one or two.
     
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  7. mjltigger

    mjltigger Funster

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    I'm with @Wildman bit as @JockandRita said it's a lot to take in. Have you got manuals? If so I would expect a trouble shooting guide. In there I would hope some clues as to what fuses there are. I'm going to be honest, if we can't find a blown fuse and you struggle with wildman's instructions then I think you're going to need more tech help than we can give you...
     
  8. Polly Put The Kettle On

    Polly Put The Kettle On Read Only Funster

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    Yes can be a little or lot to technical but it doesn't hurt for me to try and digest these comments.
    Also may Benifit others
    thanks
    image.jpg
    It shows the same reading when switched on aux image.jpg
     
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  9. treetops1

    treetops1 Funster

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    Check your connections from the panels to the controller lol
     
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  10. Polly Put The Kettle On

    Polly Put The Kettle On Read Only Funster

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    Think I am thinking down the lines of a fuse gone
    Noooooooo not a mouse please
     
  11. Polly Put The Kettle On

    Polly Put The Kettle On Read Only Funster

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    Thanks Wildman
    I have my brother in law coming round late afternoon tomorrow
    He's electrical
    We will be able to work through your instructions as they sound quite/quiet clear
     
  12. andy63

    andy63 Funster

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    If your solar panel was working there should be a green light lit up above that symbol ( ie the left hand led.. ) assuming the picture was taken during the day..
    Looks like you need to check the panel connections ...
    Ta andy
     
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  13. SomeoneElse

    SomeoneElse Funster

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    If its an older type of epsolar controller like this
    [​IMG]
    The little minonic below the centre LSD is indicating what that LED is telling you the state of the battery.
    From the top downwards:
    Slow flashing Green - Fully charged
    Solid Green - Voltage within normal range.
    Solid Orange - Voltage low.
    Solid Red - Voltage very (very) low
    Fast flashing Red - Battery Dead.

    The questions that need to be answered is:
    Is the panel working? - The left hand LED is green when the panel is suppling power.
    Do you have a large load switched on that is taking more power than the panel can supply.
    Is the controller or battery cream krackered.
     
  14. icantremember

    icantremember Funster

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    Following on from my previous post your red light is not showing the regulator to be switched off but does appear to indicate a flat battery .... However on the right hand side of your picture there is a power switch shown (the circle with a vertical line through the top) which I think is a push button that will isolate the solar panel from your batteries. Try pressing it and it should pop out (or if it's already out it will stay in when pressed)

    Whatever you do it looks like the batteries are completely flat and may or may not recover when put back on charge.

    EDIT Please disregard my comments above re the power switch, I have just found your Instructions at http://www.selectsolar.co.uk/uploads/asset_file/EPHC_Instructions.pdf
    and it is a load on/off switch so relevant at the moment.
     
  15. karl c

    karl c Funster

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    The left led is your solar panel, the middle led is your Batteries and the right led is for the output to a load witch can be set to come on for a length of time when your solar panel is not getting any out put.
    I would look at ware the wires run to you Batteries see if the is a fuse.
    do not bother with the switch on the right side as this only to adjust the timer for the load out put and you do not have anything in the load side.
     
  16. s20hymer

    s20hymer Funster

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    i would have thought after 235 miles the engine should have charged the batteries not solar panel just a thought?? good luck
     
  17. karl c

    karl c Funster

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    Have you got a split charger? first thing to look at is the Batteries, see if there is and loose wires or blown fuses.
    see if your slit charger has a fuse.
     
  18. Andy

    Andy Funster

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    My solar panel controller, Does have RED lights to indicate it's working. (y)
    Not same make, etc as shown in thread, though.
     
  19. jollyrodger

    jollyrodger Funster Life Member

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    panel.jpg

    It looks like you have no power coming from your solar ,I had the same regulater in the last van,
    LH Lamp=Solar
    Middle Lamp =Battery chrge state (blinks red when charging ? then stays fixed green ,full charge)
    RH lamp via micro switch ,timer on / off or permanently on (lamp/load) I used it to power multi socket seen in top left and showing 13.4v
    If you have a fused in line check that first ,hope you can sort it without any expense (y)
     
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  20. sedge

    sedge Funster

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    Err, daft (but simple) question but how old is your habitation battery?

    I know nowt technical, same as you Polly - but just strikes me it would be silly doing all this that and the other - if it turned out it's just that the battery has reached the end of it's useful life.
     
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