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Erroneous/Artifact readings from TCPmodbus homeassistant

Hi

I have a Victron inverter linked to my homeassistant install via Modbus. I've looked at the Modbus TCP register and there are a number of registers to look at AC power in (L1 line in) to the inverter. My issue is that the reading occasionally goes to 65000W for periods and then reverts to accurate readings. Anyone have any idea why this should be the case? This is really messing wiht my home energy calculations...... I've tried all the L1input registers (12, 1029,2600 etc) but all do the same.

Modbus TCP
2 |3000

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