Jeremyn Horsley

Marine Electrical Troubleshooting & Systems Diagnostics

San Francisco Bay Area

Structured Marine Electrical Troubleshooting

Charging systems, shore power, AC/DC distribution, NMEA 2000 networks, corrosion faults, and critical safety circuits.

Many Bay Area boats carry decades of accumulated electrical modifications. I diagnose these systems methodically, document what's there, and give owners a clear picture of what needs to be addressed and why.

Serving Alameda, Oakland, Berkeley, Richmond, Sausalito, and surrounding San Francisco Bay Area marinas.

Services

Electrical Troubleshooting

Intermittent faults, voltage drop, breaker trips, dead circuits, and parasitic drain diagnosis.

Charging & Battery Systems

Alternators, regulators, shore chargers, battery banks, and system performance verification.

Shore Power & AC Systems

Inlet issues, grounding and bonding evaluation, protection verification, and corrective work.

NMEA 2000 & Electronics

Backbone power issues, device dropouts, and structured network troubleshooting.

Method

Every job starts with a systematic evaluation.

  • Verify reported condition
  • Measure and isolate affected circuit
  • Identify root cause
  • Correct with proper materials, protection and routing
  • Improve labeling and clarity where required

Scheduling

To schedule, provide your marina location, a description of the issue, and photos of the affected areas.

Electrical Diagnostic Checklist

Electrical faults on boats commonly originate from voltage drop, degraded connections, charging system deficiencies, or undocumented wiring modifications. I use a structured diagnostic evaluation to establish system condition before beginning any corrective work.

The checklist below outlines what that evaluation covers.