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Solar Inverter & HVAC Boiler Fault Code Directory

Instant error code diagnosis, safety warnings, and step-by-step DIY reset guides for residential solar systems, tankless water heaters, and hydronic boilers.

☀️ Error 3x1E
DC Isolation Fault
Brand: SolarEdge
CRITICAL SAFETY RISK
⚠️ Safety Warning: Electric Shock & Arc Hazard. Current leaking to ground/roof framing. Do NOT touch DC conduits or solar panel frames.

📘 OEM Description & Technical Standard

🔍 Most Common Root Causes

    🛠️ Safe Homeowner Troubleshooting Steps

      Estimated Repair Cost
      $250 - $650
      Recommended Action
      Certified technician with megohmmeter required.
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