DMEGC AC Module Installation Manual
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O. Ship the old microinverter to Enphase using the supplied return-shipping label.
6. Maintenance and care
You must perform regular inspection and maintenance of the modules, especially during the warranty
period. To ensure optimum module performance, DMEGC recommends the following maintenance measures:
6.1 Visual Inspection
Inspect the modules visually to find if there are any visual defects, If there are, the following items should be
evaluated:
If modules are observed having slight cell color differences at different angles, this is a normal phenomenon
of modules with anti-reflection coating technology.
Whether the glass is broken.
No sharp objects are in contact with the PV module surfaces.
PV modules are not shaded by unwanted obstacles and; or foreign material.
Corrosion along the cell busbar. The corrosion is caused by moisture intrusion thought the module back sheet.
Check the back sheet for damage.
Check whether the back sheet is burn out.
Check if screws and mounting brackets are tight, adjust and tighten as necessary.
6.2 Cleaning
If modules are observed having slight cell color differences at different angles, this is a normal phenomenon
of modules with anti-reflection coating technology.
Whether the glass is broken.
No sharp objects are in contact with the PV module surfaces.
PV modules are not shaded by unwanted obstacles and; or foreign material.
Corrosion along the cell busbar. The corrosion is caused by moisture intrusion thought the module back sheet.
Check the back sheet for damage.
Check whether the back sheet is burn out.
Check if screws and mounting brackets are tight, adjust and tighten as necessary.
