Xantrex Freedom XC Pro 3000 Inverter Charger Noise

[dewdev]

We just had the Xantrex XC 3000 Pro installed in our 2018 Ollie along with new Lithionics batteries.

We notice that the Xantrex makes a running noise, I am guessing when charging the batteries. There is no noise when not charging.

Is this noise normal and can the noise be reduced or eliminated? 

Edited September 22 by dewdev

[Rolind]

Ours has always made the same noise, I assume it is a cooling fan. It runs continuously when charging partial depleted batteries until full charge and occasionally for brief periods of time when fully charged.  I also notice an occasional electrical hum when the cooling fan isn’t running.  I have never explored trying to decrease the sound associated with the fan. You might try decreasing the breaker rating in the xantrex app and see if it makes a difference if the battery charges more slowly.

[jd1923]

1 hour ago, Rolind said:

You might try decreasing the breaker rating in the xantrex app and see if it makes a difference if the battery charges more slowly.

Not sure about the term "breaker rating" but if you decrease the "charge rate" it may help. When you're connected to shore power overnight you do not need a high charge rate to get back to 100% SOC.

@dewdev I believe the max charge on your model is 150A. If it is set at this rate, it will produce a bit of noise and for example it would top off 600 LiFePO4 batteries down to 50% SOC in just 2 hours! You could set the rate down to 50A and instead 50% will take 6 hours.

Our Victron Multiplus II is rather quiet, though I sleep directly over our inverter-charger. I have our charger set at 100A so it can regain amp-hours quickly. Because of this, the charger kicks in when we first connect at a campsite in the afternoon. By bedtime SOC is normally at 100% and unit stops charging. There has been 2-3 times when it is still charging that time of night (e.g. when running our oven and other 120VAC during evening hours). When this occurs, lying in bed I open the Victron app, turn it off to go to sleep. I turn it back on first thing, and by the time we break camp we are back to 100%!

1 hour ago, Rolind said:

and occasionally for brief periods of time when fully charged.

Make sure all your battery settings are correct for your Xantrex. I don't believe this should occur with LiFePO4 batteries.