20 Most Recent Vector Maxx SST Power Inverter Questions & Answers

I think the problem might be your battery setup.
First of all, these batteries are not deep-cycle batteries they may not tolerate this kind of usage. Secondly, if you have 20 batteries connected in parallel they could end up working  against each other (draining each other) all the time.
You might do better with 2 very large 6 volt deep-cycle golf cart or fork lift batteries. 

how to repair power maxx inverter 1500 wats vec550pob

my inverter turns on but red and green light on at the same time, and fans working for 3 seconds on and off

What kind of buzzer do you intend to use? Have you already selected a particular buzzer? The circuit depends on buzzer type / voltage rating / current draw.

Are you wanting the buzzer to be on the AC side of the inverter, or on the DC side? Is the buzzer going to be close to the inverter, or will it be placed some distance away?

The problem you are experiencing is as
a result of an overload.Your inverter is
200watts and i believe your freezer has
a higher power than it, i.e.it is above
200watts. When ever there is an
overload on an inverter it distroys the
power transistors that make the
inverter work.You will need to see a
local repairs person.

Inverters works from 12v carr battery or backup battery, you can not charge the inverter you msay killed your inverter if you connected to 120v wall mount...you use the inverter to give you AC (electric) from 12v battery. if your tv is 12v you need to know how much needed to get the correct connrection as output and input.

These cords are sold at Walmart.

Or you can go to your local auto parts store and make a set.

Hope this tip helps.

r/
David

Go to any Appliance parts store with your fuse in hand and walk out with a replacement. The 250V fuse is AC OUTPUT and "not" a DC input fuse. That is an 8 amp 250V slow blow fuse.

Fuse is there, but more damage is suspected. Transistors damage easily and capacitors will short when subjected to reverse polarity.

15 100watt bulbs

If the unit doesn't have an external fuse and it doesn't reset itself after an overload, it possibly has an internal (onboard) fuse that needs replaced. Possibly de-soldered and re-soldered...