How do I fix Parallel Fault (X3) on a SolaX?

Check parallel comms and earth cable connections between inverters. Then: Check matching resistor setting and master/slave configuration.

SolaX

IE 33

Parallel Fault (X3)

Fault in parallel-connected inverter system.

Common causes

Parallel comms cable issueMatching resistor not setMaster/slave config wrong

What to check

STEP 1

Check parallel comms and earth cable connections between inverters.

STEP 2

Check matching resistor setting and master/slave configuration.

Escalate if

Persistent after checks

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