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brorrobin avatar image
brorrobin asked

Fuse blowing out on mppt 75/15

Hello, on my sailboat I have a 155w solar panel connected to a victron 75/15 mppt. Recently it has begun acting strange. First we had a consumption far greatly exceeding what was normal for our boat with no apparent reason. 550 wh vs 200-250wh on a regular day. Checked that we had nothing powerconsuming still turned on. Weird. Then the next day the fuse (20ah) blew out. Replaced this and a few hours later it blew out again! Anyone have some tips regarding what this may be?


Thanks

MPPT Controllersfuses
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1 Answer
Pat Davitt avatar image
Pat Davitt answered ·

Just a guess, but if you have any DC Motor loads (Bilge Pump, Fresh Water Pump, etc.) in your system, you may have a motor going bad. They can draw a lot of amps when they start to fail. Another thing to check is the distribution and load wiring. You may have a circuit that is shorting out.

Pat

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