At random times, could be pulling away from the dock, or idling around the lake, or pulling the kids on the tube, our 2013 H190 will completely die. Meaning, if we are idling around with the blower running, everything will go completely dead. Then within a few seconds, the blower will come back on and the key beeps will start. The engine always restarts without issues. This randomness could be within 1 min, 1 hr, or 3 hrs. Sometimes we go hours without issues, others we can stay running for more than a minute. If I disconnect the yellow electrical cable from the battery, it runs perfectly fine and never dies. By disconnecting that cable, I still have blower, speedometer, trim/tilt, but no other gauges. We had this same issue a few years ago and they said it was the battery and put a new battery in. We dropped the boat in the water and it died in the first 5 mins. Second trip they said they found a loose wire but the issue continued, just not as frequently. Another shop said the fuel pump was too high and adjusted that but couldn't find any other issues.
I'm going to take the battery out to get a load test again but otherwise, we've looked at everything. No frayed wires, no bent wires, nothing exposed that we can see. Someone mentioned alternator but would that cause the whole boat to completely die!? The battery seems to be charged and we never have issues starting the engine with or without that yellow cable connected to the battery.
I'm new to this board and I'm hoping someone has an idea to help fix the problem! Thank you all for your replies.
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