How do I fix Hardware Fault on a Solis?

Power cycle: turn AC breaker OFF, then DC isolator OFF. Wait 5 minutes. Restore DC then AC. Wait for startup Then: Check for visible signs of burning, damaged terminals, or water ingress inside inverter casing

Solis

E031

Hardware Fault

Internal hardware fault detected. Inverter has shut down for protection.

Common causes

Internal component faultSurge or transient eventManufacturing defect

What to check

STEP 1

Power cycle: turn AC breaker OFF, then DC isolator OFF. Wait 5 minutes. Restore DC then AC. Wait for startup

STEP 2

Check for visible signs of burning, damaged terminals, or water ingress inside inverter casing

Escalate if

Fault persists after power cycle or visible damage found — contact Solis support, do not operate

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