Emergency Fix. SunSaver Broke

System
System Posts: 2,511 admin
in General Solar Power Topics #1
Help.

My Sun Saver 6 stopped putting out. Voltage to battery is zero. Input voltage is 17.6 V from single 85 Watt panel. Can I bypass the controller for a few days without problems?

Thanks

Carl Carlson
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  • RCinFLA
    RCinFLA Solar Expert Posts: 1,485 ✭✭✭✭
    #2
    Re: Emergency Fix. SunSaver Broke

    Put a 5 amp capable blocking diode in series with panel. (I assume you are talking about a 12v battery)

    Check battery voltage during day to make sure it doesn't get much over 14.2 vdc.
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  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    #3
    Re: Emergency Fix. SunSaver Broke

    Bypassing the controller is OK, if you watch the voltage with a meter. Gets tricky if you have a expensive AGM battery, check that meter often.

    On a working controller, you can bypass with a jumper from PV + to Bat + but if your controller is broken, you just might fry a fuse or worse. Any internal controller fuses you should check ?
    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

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  • Windsun
    Windsun Solar Expert Posts: 1,164 ✭✭
    #4
    Re: Emergency Fix. SunSaver Broke

    When you say "stopped putting out", how did you measure it?

    If you try to just measure it with no battery connected to the controller, it does not mean much, as the controller has to have a battery hooked up for it to turn on and operate.
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  • Dave Angelini
    Dave Angelini Solar Expert Posts: 6,891 ✭✭✭✭✭✭
    #5
    Re: Emergency Fix. SunSaver Broke
    Windsun wrote: »
    When you say "stopped putting out", how did you measure it?

    If you try to just measure it with no battery connected to the controller, it does not mean much, as the controller has to have a battery hooked up for it to turn on and operate.

    uh huh! The OP must have battery voltage on the CC ! If the fuse is open, why did it open?
    "we go where power lines don't" Sierra Nevada mountain area
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  • System2
    System2 Posts: 6,290 admin
    #6
    Re: Emergency Fix. SunSaver Broke

    Thanks for the info.

    Carl
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