Run Solar Inverter and Combiner Box Inspection — Free

Inspection Details and Safe Work Controls

Equipment identification recorded

Record inverter ID, combiner box ID, location, and asset tag.

Inspection date and time recorded

Document when the inspection was performed.

Lockout-tagout applied before opening enclosure critical (required)

Verify the equipment was isolated and controlled before access to internal components.

Yes No N/A

PPE appropriate for electrical work used critical (required)

Confirm required PPE was used based on site hazard assessment.

Inverter Status and Fault Codes

Inverter display shows normal operating status critical (required)

Verify the inverter is not in shutdown, derate, or alarm state.

Yes No N/A

Active fault codes recorded critical (required)

Record all active fault codes, alarms, and event messages shown on the inverter or monitoring interface.

Photo evidence (optional)

Historical fault log reviewed

Confirm recent fault history was reviewed for recurring issues, nuisance trips, or thermal events.

Yes No N/A

Cooling fans, vents, and heat sinks unobstructed

Check that airflow paths are clear and no debris is blocking cooling components.

Yes No N/A

Photo evidence (optional)

Signs of overheating or thermal damage present critical (required)

Inspect for discoloration, melted insulation, odor, or heat damage on the enclosure or components.

Yes No N/A

Photo evidence (optional)

Combiner Box Fuses, Wiring, and Terminations

Fuses present and intact critical (required)

Verify all required fuses are installed and not open, cracked, or heat damaged.

Yes No N/A

Photo evidence (optional)

Fuse size matches inverter and string design critical (required)

Confirm fuse amp rating matches the approved design and equipment nameplate requirements.

Yes No N/A

Terminations are secure and properly torqued critical (required)

Check for loose lugs, damaged conductors, or signs of overheating at terminations.

Yes No N/A

Photo evidence (optional)

Conductor insulation and routing are in good condition

Verify conductors are not nicked, pinched, abraded, or routed in a way that creates strain or abrasion.

Yes No N/A

Evidence of arcing or burn marks present critical (required)

Inspect for soot, pitting, melted plastic, or other arc-fault indicators inside the combiner box.

Yes No N/A

Photo evidence (optional)

Moisture, Corrosion, and Enclosure Condition

Enclosure is dry and free of moisture intrusion critical (required)

Check for standing water, condensation, dampness, or water staining inside the enclosure.

Yes No N/A

Photo evidence (optional)

Gaskets, seals, and conduit entries intact

Verify door seals, glands, and conduit fittings are intact and maintain enclosure integrity.

Yes No N/A

Corrosion or contamination present critical (required)

Inspect for rust, white powder, dirt buildup, insect intrusion, or other contamination on internal components.

Yes No N/A

Photo evidence (optional)

Enclosure door closes and latches properly

Confirm the enclosure can be fully closed and secured to maintain weather resistance and access control.

Yes No N/A

Grounding, Bonding, and Final Corrective Actions

Grounding and bonding conductors secure and continuous critical (required)

Verify grounding/bonding conductors are intact, properly terminated, and free of damage.

Yes No N/A

Ground continuity verified with test result critical (required)

Record measured continuity or resistance value for the grounding path.

Note (optional)

Deficiencies documented with corrective action critical (required)

List any non-conformances, immediate hazards, and recommended corrective actions.

Escalation to maintenance or AHJ required

Select whether the issue requires escalation.

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Run: Solar Inverter and Combiner Box Inspection

Inspection Details and Safe Work Controls

Inverter Status and Fault Codes

Combiner Box Fuses, Wiring, and Terminations

Moisture, Corrosion, and Enclosure Condition

Grounding, Bonding, and Final Corrective Actions

Get your results