20 Most Recent Vector VEC414S MICROSLIM POWER INVERTER Questions & Answers

This is a classic symptom of the Output transistors "Blowing" this is very common with inverters. Especially smaller ones. You could no doubt repair this item, however I am pretty sure that it would end up an uneconomic repair, by the time you repaired it you may as well have bought a new one, The cost of the transistors will be around $75.00, just for those alone. In my opinion it would be best to put any money into another unit. Also this time get a larger output device, this will allow more "Headroom" and this will, ensure longevity, of the inverter.

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...

Go to.. http://documents.dewalt.com/documents/English/Instruction Manual/Vector/VEC190POB.pdf This is the owners manual for this light

Try partstore.com

The cost to ship lead-acid batteries is really cost-prohibitive. I suggest going to your local Batteries-Plus store for the replacement.

www.donrowe.com/user_guides/vector/vector_d_models.pdf

www.hemispheregps.com/.../vector/875-0076-001_VectorManual%20053101_.pdf

Without a schematic diagram, and troubleshooting procedures, it is very very hard to service such a piece of equipment such as this. I get a few of these over a year and invariably, it is the Output Devices, that fail, and along with this usually the CPU,or "Brain" gets "Fried" as well.
You have to treat this in two parts, the Input and the Output, the only way to repair is to isolate these two sections, then troubleshoot and repair the Input section, FIRST, once this is all going correctly, then, the Output section, is attended to if applicable, often it is an "Overload" on the Output side that causes a failure on the Input side, so many many times we have two "Faults" that need to be attended to, if only one is repaired the unit will soon fail again.
One simply MUST obtain a service manual, to be able to have any chance at a repair. The best way to do this is to contact the manufacturer, and ask for one. Then you will have a schematic diagram, to work from.

yes if this is close to mine there is a cover over 2 feuses on the back

Had a seller on E-Bay respond with a Vector service # where I found a local dealer through and ordered the part.

Help in the link, plus maker support. https://www.google.com/search?q=KEB+COMBIVERT+F5+DRIVE+controller+not+responding+to+run+command ..

It appears to be something to do with this https://www.google.com/search?q=keb+12f5+that+shows+E.EF+external+fault 7.13.1.6 External fault With Pn.04 "Ext. fault input selection", one or more digital inputs can be programmed which can trigger the error "31: ERROR! External input" (E.EF). With Pn.03 "E.EF stopping mode" , the response of the inverter to the digital input is defined. With Pn.65/ bit 1 "2: Pn.04 = E.UP https://www.keb.su/doc/Instrukciya%20F5-A_E_H%20ver.4.0%20(ang.).pdf ..