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johnp avatar image

Multiplus overload

I have a multiplus 48/3000 that has worked ok for the past 18 months. However in the past few weeks it keeps shutting down due to overload but no overload/short has occurred.

Upon resetting the inverter makes a strange noise and throws another overload fault, even with no load. It finally resets and works ok for a few days before occurring again.

MultiPlus Quattro Inverter Charger
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Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @johnp

Sorry to hear about this, overload issues can be hard to find / fix. if you are sure upon restarting there are no loads connected, so it's not an external issue, then it's best to contact your distributor for repair of the unit.

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Fine avatar image
Fine answered ·

Can the regulator ne thé cause of thé overload?


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Fine answered ·

Hello, you are notre thé only one concernés. We have exactly thé dame issue with pour multiplus 3000\70. Except that now, it s stucked on overload. But before it was like yours : somentimes everithing normal, and 5 minits or 2 days after, overload. We shut down AC IN and AC OUT, un ordre to sée if it was thé disjoncteur, but overload remaind. We checked thé components, everything looked okay. If you find thé solution, we will be very interested.

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Hi @Fine

This sounds like a defect, please contact your distributor for repair.

Fine avatar image Fine Daniël Boekel (Victron Energy Staff) ♦♦ ·

Thank you DANIEL for jour quick ansver. Our stuff is under guarantee, but thé professional who indtalled it is unfortunatly dead ans ils industry under liquidation. Do you Knox what tout do un that case? Thank you.

Hi @Fine

That's unfortunate!

best to contact your nearest distributor / installer, or ask Victron sales in your country who to contact.

https://www.victronenergy.com/where-to-buy

Fine avatar image Fine Daniël Boekel (Victron Energy Staff) ♦♦ ·

Yes, hes, he was a gold Guy! Died toi young... Fort us, thé problème is, and dont laught, that we are living in an island un France called corsica. No victron industry un thé neighbourghood! L'ost! Do you have a solution? We have discovered that when we cover thé pannels with blankets fort a while, it seems tout work again fir a while. It is as if thé device thinks that there is toi much juce coming from thé battery ans that it can t hold it. Do you have an idéa about this? Van it Côme from thé regulator? And thanks again for your answer and for jour rapidity DANIEL.

johnp avatar image
johnp answered ·

everything downstream of the inverter has been checked - appliances/wiring etc

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johnp avatar image
johnp answered ·

can someone from victron answer this please?

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Have you disconnected the ac output to verify the fault is in the inverter?

yep, even with no ac load it sometimes throws an overload fault, but give it a minute or 2 it restarts fine and can be ok for 1 day or 1 week

"even with no ac load"

No load?

What about the rest of the ac wiring? A pinched, crushed or kinked cable could intermittently fault. Creepy crawly's also cause mischief.


everything downstream of the inverter has been checked - appliances/wiring etc

I hope someone from victron will answer tout jhon ans tout me, because we have exactly thé same issue.