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dmin avatar image
dmin asked

Victron 75/15 sometimes no pv voltage

IMG_8627.pngHi all

I’m reaching out to anyone with more pv knowledge than me. I have a 180w panel and all has been working very well for past 2 years until 4 days ago (it’s for a campervan). In app it has always given a voltage generated from PV and even in cloudiest days it’s given at least 10v. Now when on electric hook up I come off hookup it now gives a pv voltage (Victron smart solar app) of 0.01v. Strangely when driving for a few minutes it then gives a good realistic reading of usually 22v. It’s almost like it needs the engine (battery to battery) to kick it into action. Checked connections but nothing strange. In past even when on electric hook up it has given a the pv voltage. Thanks for any advice. Darren

voltage
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2 Answers
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kevgermany answered ·

Possibly a cable or panel fault. You've checked the connections, but there may be a break which connects intermittently. Movement makes/breaks it. Does moving the loose parts of the cable make a difference? When the MPPT shows very low voltage, what voltage is at the panel? This should tell you if it's the panel or the cabling.

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dmin avatar image
dmin answered ·

Thanks for the reply and that sounds the issue and I have tested it and as you suggested the multimeter indicates a break in the circuit. (By pressing on the panel in certain places it also opens the circuit)

Thanks

Darren

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