LONGi Solar Technology Solar Panel LR4-72HPH-***M

Check the tightness of the connectors and cables

Check for cracks or gaps in silicone near the junction box

Describe any issues found during inspection

Ensure there are no environmental factors shading the modules

Verify that there is no glass damage or exposed wires on the modules

Clean during early morning or evening

Inspect modules for any remaining contaminants

Confirm no new damage occurred during cleaning

Inspect module for cosmetic defects

Inspect PV modules for signs of aging

Check for sharp objects in contact with PV modules’ surface

Check for obstacles shading the PV modules

Inspect and fix module mounting system

Are there any loose or damaged screws between the modules and mounting system?

Adjust and fix any loose or damaged screws