How do I fix IQ Gateway Rebooting on a Enphase?

Wait 3 minutes. LEDs should return to normal operating state after boot. If a firmware update is in progress, do not interrupt power Then: If rebooting repeatedly (cycling red every few minutes) — IQ Gateway may be crashing on boot. Check if there is a pending firmware update

Enphase

Comb: All 4 Flash Red

IQ Gateway Rebooting

All 4 IQ Gateway LEDs (inside IQ Combiner) flashing red in unison — IQ Gateway is rebooting. Normal after a power cycle or firmware update.

Common causes

Power cycle in progressFirmware update rebootIQ Gateway software restart

What to check

STEP 1

Wait 3 minutes. LEDs should return to normal operating state after boot. If a firmware update is in progress, do not interrupt power

STEP 2

If rebooting repeatedly (cycling red every few minutes) — IQ Gateway may be crashing on boot. Check if there is a pending firmware update

Escalate if

IQ Gateway appears stuck in a reboot loop (red flash → off → red flash cycling continuously for >15 minutes) — escalate

Need full interactive diagnosis?

Faultpath walks you through decision trees, fault codes, and commissioning — built for solar & battery engineers.

Open Faultpath

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