How do I fix Grid Profile Not Set on a Enphase?

Open Installer Toolkit. Select the system and go to Grid Profile. Apply the correct UK G98 or G99 profile for the site Then: After applying the profile, wait for MIs to update (can take 15–30 minutes). Verify in Installer Toolkit that profile is confirmed

Enphase

Profile Not Set

Grid Profile Not Set

Microinverters have not had a G98/G99 UK grid profile applied. This prevents them from operating on the UK grid.

Common causes

Commissioning incomplete — grid profile not programmedFactory default profile still activeGateway firmware update reset profile

What to check

STEP 1

Open Installer Toolkit. Select the system and go to Grid Profile. Apply the correct UK G98 or G99 profile for the site

STEP 2

After applying the profile, wait for MIs to update (can take 15–30 minutes). Verify in Installer Toolkit that profile is confirmed

Escalate if

Profile cannot be applied via Installer Toolkit — Gateway or MI firmware issue, escalate

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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