Is Jebao noise normal?

[hrdneglcry]

Ok I have a Jebao DC 12000 used that I have running on my 120. I think it has 10 circles on the power setting or ten leds. So if I run it on 8 I hear nothing. On ten I hear a faint whine. Like if you heard a vacuum cleaner in an office building but could just barely hear it at all. On the 9th setting the whine is more faint. Seems to come and go. But on 10 I can hear it and on 8 I cannot. Is it normal to hear any whine on a Jebao? I had a hard time getting this to work I had to soak it in vinegar.

 

[SteveMM62Reef]

Do you have an Electronic Electric Meter? After our meter was replaced, with one, we had a Whine off of several appliances that used DC Drive motors. Utility had to install Chokes inside the meter can. Also try a plug into a different circuit, to see if the noise presists. IE On US and Canada Electric Service you have 230 VAC, and a Neutral and it is Split in two 120 circuits with the common Neutral, for house receptacles.

 

[ReefSlice]

Mine whined for the first month or so and is now completely silent.

 

[hrdneglcry]

Mine whined for the first month or so and is now completely silent.

Ok. I think maybe its normal.

 

[Mark Barker]

Ok. I think maybe its normal.

Did it stop?

I’ve installed a new Jecod (Jebao) pump today and it’s whining. It’s tolerable, but I’m hoping it calms down