AI Nero 5 Rattling Noise

[Rogued_Reefer]

Hello reefers! As the title says my Nero 5 makes a rattling noise. I bought it used and according to the seller it wasn’t making the noise prior to him selling it to me, the pump was in use for 3 months.

this is the things I’ve checked given Google searches and things I found online…

The pump is clean, there is no obstructions in the 4 holes it has, there is no grease blocking anything, there doesn’t seem to be any broken part and the pump is properly assembled.

 

[blaxsun]

Small snails rattling around? Try running it without the cover for a few minutes and see if the noise disappears.

 

[Rogued_Reefer]

Small snails rattling around? Try running it without the cover for a few minutes and see if the noise disappears.

Just tried and it doesn’t

 

[blaxsun]

Just tried and it doesn’t

I would try contacting AI. They may have a spare parts/repair kit or some suggestions on how to troubleshoot. I had a Nero 3 and never had any issues with noise.

 

[Rogued_Reefer]

I would try contacting AI. They may have a spare parts/repair kit or some suggestions on how to troubleshoot. I had a Nero 3 and never had any issues with noise.

Yeah I contacted them see what they say. I have a bunch of friends who have them and never had issues so it’s kind of a bummer this one does lol

 

[blaxsun]

Yeah I contacted them see what they say. I have a bunch of friends who have them and never had issues so it’s kind of a bummer this one does lol

Sorry to hear about your woes - hopefully AI can help you get squared away.

 

[Joe31415]

I don't have a Nero, but I have two MP10s that do rattle. One of the potential fixes that some people have had good luck with is to open it up and replace the bearings.
I haven't done that yet, but will consider it if it gets worse.
I do know, at least on the MP10s, if you turn them down, the rattling goes away. You might try doing that with the Nero.

 

[bnord]

have seen well made you tube videos on how to replace the bearings but have never been able to fond the bearings

Any leads?

 

[Joe31415]

Do you have a link to one of the videos?

 

[Rogued_Reefer]

Ok so forgot to update here guys! My bad. So after talking with AI they told me to give it a 2hr bath in citric acid and to reset it before putting it back in the tank. That worked so I’m not sure what was the issue.

 

[codenfx]

I’ve had this issue with one of my Nero 5 and it was brand new. I let it run and rattle for couple days and it’s silent now. It was driving me crazy. I guess for me had to break it in a bit. My other Nero 5 was silent out of the box however.

 

[Joe31415]

Ok so forgot to update here guys! My bad. So after talking with AI they told me to give it a 2hr bath in citric acid and to reset it before putting it back in the tank. That worked so I’m not sure what was the issue.

In that case it was probably some muck down in the base of the wet side. The bearings wouldn't have had anything to do with it.

 

[MichaelReefer]

Hmmm weird, only thing I have had with mine is the occasional little snail getting in there.

 

[Rogued_Reefer]

In that case it was probably some muck down in the base of the wet side. The bearings wouldn't have had anything to do with it.

Correct that is what I’m thinking too, likely some grease or something like that.

 

[Dom]

I have the same pump. Been in use 3 months. It started making a noise like it had bad bearings about a month into ownership. It stopped for a while and then started again.

I find turning it off and then back on makes the noise go away, although, I wouldn't call that a fix.

Funny I should come across this thread. I'm looking into the same issue.