How do I fix Production Issue / Below Expected on a Enphase?

Open Enlighten and check individual MI performance — identify which MIs are underproducing vs which are at expected levels Then: If isolated MIs are underperforming, check those modules for shading, soiling, or MI fault codes. If whole system is down, check grid connection

Enphase

Prod Issue

Production Issue / Below Expected

System production is significantly below the modelled or historical expected output.

Common causes

Shading (new obstruction, vegetation growth)Module soilingOne or more MIs in fault stateIncorrect system configuration in Enlighten

What to check

STEP 1

Open Enlighten and check individual MI performance — identify which MIs are underproducing vs which are at expected levels

STEP 2

If isolated MIs are underperforming, check those modules for shading, soiling, or MI fault codes. If whole system is down, check grid connection

Escalate if

All MIs are healthy but production is still low — check Enlighten system configuration for correct module count and orientation

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More Enphase fault codes

ACVOOR

AC Voltage Out of Range

ACFOOR

AC Frequency Out of Range

DC Res Low

DC Resistance Low (Ground Fault / GFDI)

DC Too Low

DC Input Voltage Too Low

DC Too High

DC Input Voltage Too High