Fault Code: RCD / GFCI
RCD Fault Diagnosis
Investigating residual current leakage and AC circuit integrity to ensure hardware safety.
Introduction
A Residual Current Device (RCD) fault occurs when the system detects an imbalance between the supply and return currents, indicating that electricity is leaking to the ground.
This is a critical safety feature of the SunHopper®-D, designed to prevent electric shock and equipment damage. The fault must be cleared manually after the underlying issue is resolved.
Troubleshooting Steps
Circuit Integrity
1
Check for moisture in AC junction boxes.
2
Inspect AC cable insulation for damage.
3
Verify ground connections are tight.
4
Ensure the heater element is not grounded.
Leakage Sources
1
Identify if the fault occurs during rain.
2
Test the heating element for insulation resistance.
3
Look for signs of corrosion in electrical terminals.
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