Fried Diode

RamdriverRamdriver Registered Users Posts: 3
Do I have to repair/bypass or can I eliminate the diode in a single panel system? I fried it ☺️ Just trying to charge my battery 


  • BB.BB. Super Moderators, Administrators Posts: 29,359 admin
    What diode? In the solar panel? It a charge controller?

    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • RamdriverRamdriver Registered Users Posts: 3
    There is what I believe is a diode soldered into the + and - terminations on the back of the solar panel. 
  • mcgivormcgivor Solar Expert Posts: 3,020 ✭✭✭✭✭
    edited January 19 #4
    They are diodes, used to bypass shaded cell strings within the module, this allow partial output rather than no output. They are very cheap, I would replace them, the panel will operate with them bypassed as long as there is never any shading.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery bank 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah FLA 24V nominal used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
  • RamdriverRamdriver Registered Users Posts: 3
    Thanks that is exactly what I was looking for!
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