How do I fix Export Limit Fault — CT Clamp on a Solis?

Locate export limit CT clamp — must be on grid incomer (DNO side of consumer unit). Arrow must point toward consumer unit Then: Check CT cable is connected to inverter CT input. Check Solis app — grid reading should show live import/export value

Solis

E040

Export Limit Fault — CT Clamp

Export limiting CT clamp not reading correctly. Inverter cannot determine grid export level.

Common causes

CT clamp not installedCT clamp reversedCT clamp on wrong cableCT cable disconnected

What to check

STEP 1

Locate export limit CT clamp — must be on grid incomer (DNO side of consumer unit). Arrow must point toward consumer unit

STEP 2

Check CT cable is connected to inverter CT input. Check Solis app — grid reading should show live import/export value

Escalate if

CT installed correctly and connected but grid reading zero — CT or input port fault, contact Solis support

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