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ghaztehschmexeh avatar image
ghaztehschmexeh asked

Multiplus Noises

Hi, a few weeks ago I installed a multiplus 3000/120 in my boat. I previously had a mastervolt ultra combi which was very quiet.


This unit humms a lot which I am not worried about. However, at low loads it "ticks" (note I don't think this is a relay switching). And this has now evolved into a concerning intermittent electrical buzzing/ticking. See the video below.


For context I am plugged in to a shoreline only inverting from the batteries. There is a load on the output, which seems to vary the sound. The load at time of recording is a dishwasher, PC and washing machine.


Is this normal? Or do I need to return the unit?


Thanks!


https://youtube.com/shorts/j2myGzHXT9o?feature=share

multiplus ve.bus
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3 Answers
mvas avatar image
mvas answered ·

Sounds like, something is loose and vibrating.
That is not normal.
It should be fixed.

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oxy avatar image
oxy answered ·

These arcing (?) sounds are not normal.


The only ticks (clicks?) I sometimes hear from a MultiPlus are relay-like on a near-overload situation - but am also curious why they these sometimes heard.

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ghaztehschmexeh avatar image
ghaztehschmexeh answered ·

Okay thank you, I will contact the company I purchased it from and speak to them about the warranty. Hopefully nothing untoward will happen, I live on my boat and need the AC power to work!

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