Solar Lattice

Symptom

Output filter malfunction

ID
symptom:filter-malfunction
IRI
https://solarlattice.org/kb/symptom/filter-malfunction
Status
active
Also known as
Filter Cont. Err, Filter Contactor Open, LC Filter not working

The message means the LC output filter is not working, but the inverter keeps producing AC power, so you may not see a drop in the power data. In Modbus monitoring, the same condition shows as the Filter Contactor Open fault bit, with value 8192 (hex 2000). First, turn off both the DC and AC sides and restart the inverter. If the error returns after the restart, an authorized service provider may need to inspect and service the inverter.

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