Troubleshooting
Problem | Cause | Remedy |
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100 amp DC breaker | Current from the array | Check array size and ensure the DC input does |
trips. | exceeds the DC input | not exceed the breaker rating. |
| breaker rating. |
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| A lightning strike hit near | Check lightning arrestor, breakers, panels, |
| the PV array. | diodes, DC wire insulation and other components |
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| for damage. Replace any damaged components |
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| and reset the breaker. |
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Open 20 amp combiner | A short to ground exists in | Check all DC array wiring for improper wiring |
board fuse(s). | the DC array wiring. | or exposed wires. |
| Array is producing current | Check array size and ensure the DC input current |
| in excess of the fuse rating. | does not exceed the fuse rating. |
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PVGFP breaker trips. | A ground fault exists in the | Check all PV array wiring for improper wiring, |
| DC array wiring. | exposed wires, or short circuits. |
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