out back inverter

just upgraded to a outback fxr2024e . whow what a racket the turbo fan makes . seems to come on during bulk and absorb. Very small load.. is this normal . is there a way to reduce the fan noise . is the turbo fan nessary .
2225 wattts pv . Outback 2kw fxr pure sine inverter . fm80 charge controller . Mate 3. victron battery monitor . 24 volts in 2 volt Shoto lead carbon extreme batterys. off grid holiday home
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Ralph
Ralph