Overload LED Condition

DIY
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1

Hello I have a problem with a Multiplus II 12/3000/120. In general I have an Overload LED condition. Here is the status of the unit under these conditions:

Nothing connected to 120VAC output (inverter output) terminals.

No 12 VDC Batt connected (inverter input) ; 120VAC in connected

  • pwr switch to Invert Position
    • Low Batt LED solid on
  • pwr switch to Charge
    • in about 3 secs Mains On flashes
    • in about 17 secs Mains On solid & Float On

12 VDC Battery connected (inverter input); 120 VAC in connected

  • pwr switch to Invert
    • in about 3 secs Overload LED on solid
  • pwr switch to Charge
    • in about 17 secs Mains flash then off
    • after 17 secs Overload LED on solid

No Charging or inverting is taking place in any combo of connections or switch postions.

I do have a Mark 3 dongle to communicate if that is of help. but when the MPII goes into overload condition, it doesn’t seem to help much.

Suggestions?

2

Still looking for suggestions please

3

Anyone with help?

4

Disconnect the AC IN (and OUT) → only connect the battery → witch the MultiPlus to ON → what happens?

If you still getting the overload there seems to be a problem with the device → you should contact the seller from whom you bought it.

5

Hello Matthias, Thank you for your response. Yes with only a dc battery input I still get an overload condition. We are a sailboat user and bought the unit through a distributor in Panama. We are no longer there and don’t plan on returning . The Distributor did get me an RMA number and we took the unit out of the boat and brought it to California where we live for periods of time. The cost to ship the MP2 to the repair center in Tennessee from California was almost $600 USD. I thought it may be a less expensive path if I could replace a PCB in the MP2. I understand I would void the warranty but the expense of shipping the unit is more than 1/2 the price I paid for the MP2. Is it possible for me to purchase a replacement part knowing that I would be accountable and responsible for the repair?

6

I can’t answer that.
You have to discuss this with the Distributior and/or the repair center.
That’s a case to case decision.

Normally the repair should be done by a trained professional to maintain the warranty.
It’s also possible that the unit needs to be calibrated after the repair.

7

I’ll note that an MP-II doesn’t need to be shipped on a pallet, it’s less than 25kg. Ship it UPS or FedEx, it should cost you around $100, maybe slightly more with insurance, but certainly nowhere near $600.