Solar panel no voltage

skynet888skynet888 Posts: 1Registered Users, Users Awaiting Email Confirmation
Hello All, hope some one may have some insight into my dilemma. 
I have three 12 volt 160 watt solar panels wired in parallel. 
When I connected to my Tristar ts-60 I get a red light only indicator.
When using my meter I show no volts but high Ohms on the negative ground and zero volts when I connect the meter to the postive.
Possibly my diodes need replacing?


  • PhotowhitPhotowhit Posts: 4,742Solar Expert ✭✭✭✭
    Pull them apart and measure individually, then be sure they are wired correctly after checking that the polarity is correctly marked on the panels. It might be that the polarity is reversed somewhere.
    Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites,  Midnite E-panel, Prosine 1800 and Exeltech 1100, ForkLift battery. Off grid for @13 of last 14 years. 1000 watts being added to current CC, @2700 watts to be added with an additional CC.
  • mike95490mike95490 Posts: 7,964Solar Expert ✭✭✭✭
    I give up.   Sure - replace your diodes, and then when nothing improves, slap the person who first mentioned diodes to you.

    Except for the panels internal BYPASS diodes, there are no other diodes in a modern PV system.   But if you are convinced there are some places you must install them to make magic power, go ahead, it's your dime.
    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

    gen: ,

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