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8. TROUBLESHOOTING GUIDE

TABLE 1

- inverter power switch turned on

TROUBLE/ INDICATION 

POSSIBLE CAUSE 

SUGGESTED REMEDY

No AC output –

DC input below 10 volts

Recharge or replace

red LED lit 

battery

No AC output – 

Excessive appliance

Reduce load-wait for 

red LED lit 

load-thermal shutdown 

inverter to cool. Turn 

OFF, then turn ON

No AC output – 

Inverter input fuse open

Check fuse and wiring.

Green LED not lit 

Repair and replace fuse.

Low battery alarm 

Bad connection or wiring

Tighten all DC

sounds continuously  

connections

Low battery  

Low battery voltage 

Recharge battery. 

alarm sounds

Remove load from 

inverter while recharging

battery

Motorized power tool 

Excessive start-up load

If appliance does not start,

won’t start  

then appliance is drawing

excessive wattage and 

will not work w/inverter

Motorized power tool 

Purely inductive load

Make the load not purely

does not operate at 

inductive. Operate an 

correct speed

incandescent lamp at 

same time as motor

Television/radio 

Snow in picture, buzz 

Keep inverter and

interference

in speaker  

antenna distant from 

each other. Use shielded

antenna cable. Connect

antenna to amplifier

9. FUSE REPLACEMENT

If external fuses blow, (or breakers trip), then there is a short or overload in the DC

wiring. Find and fix the problem before replacing the fuses (or resetting the breaker).

After fuse replacement, reconnect the inverter.
This power inverter is equipped with multiple internal fuses. Normally, these fuses 

will not blow unless there is a serious problem inside the unit. Internal fuses are

replaceable, however, only electronically knowledgeable people should attempt fuse

replacement. If the unit is damaged during fuse replacement, the warranty may be

voided. Vector recommends contacting Technical Support for guidance. Based on

experience, it is best to return the unit to Vector for repair. Vector Technical Support

can be reached by calling toll free 866-584-5504. You may also contact us by visit-

ing our [email protected].

11

Summary of Contents for 750 Watt Power Inverter

Page 1: ...UNDERSTAND ALL CAUTIONS WARNINGS INSTRUCTIONS AND PRODUCT LABELS PLUS YOUR VEHICLE S BATTERY MANUFACTURER GUIDELINES FAILURE TO DO SO COULD RESULT IN INJURY AND OR PROPERTY DAMAGE 4140 SW 28th Way FT...

Page 2: ...connections and ring terminal connections This is not a toy keep away from children CAUTIONS Do not use with positive ground electrical systems the majority of modern automobiles RVs trucks and boats...

Page 3: ...tion 6 4 1 Power source requirements 6 4 2 Connection to power source 6 7 4 3 Connection to load 8 4 4 Placement of inverter 8 5 Operating tips 9 5 1 Rated versus actual current draw of equipment 9 5...

Page 4: ...l voltage ramp up during inverter start up This eliminates failed cold starts under load Second output that momentarily dips in voltage and quickly recovers to allow large motorized loads to start Thi...

Page 5: ...ulky transformers found in less technological ly advanced models The inverter stage uses advanced power MOSFET transistors in a full bridge configuration This ensures excellent overload capability and...

Page 6: ...able to supply the necessary current to operate the load The power source may be a battery or a well regulated DC power supply To obtain a rough estimate of the current in amperes the power source mu...

Page 7: ...t breaker close to the DC power source battery terminal 1 Check to be sure the inverter s power switch is turned off and that no flammable fumes are present 2 Identify the positive and negative DC pow...

Page 8: ...se devices use a separate charger or transformer that is plugged into an AC receptacle The MAXX 750 SST is easily capable of running most charg ers and transformers 4 4 PLACEMENT OF THE INVERTER For b...

Page 9: ...er will not operate high wattage appliances or equipment that produce heat such as hair dryers microwave ovens and toasters 5 2 BATTERY OPERATING TIME With a typical vehicle battery a minimum operatin...

Page 10: ...uide The alarm will sound when the inverter is overloaded in thermal shutdown or if there is an excessive voltage drop between the battery and inverter NOTE It is normal for the alarm to sound while t...

Page 11: ...ive Operate an correct speed incandescent lamp at same time as motor Television radio Snow in picture buzz Keep inverter and interference in speaker antenna distant from each other Use shielded antenn...

Page 12: ...d workmanship for two years from the date of purchase without additional charge The warranty does not extend to subsequent purchasers or users Vector Manufacturing Ltd will not be responsible for any...

Page 13: ...tormfg com for general repair information and charges if applicable STATE LAW RIGHTS This warranty gives you specific legal rights Some states do not allow limitations on how long an implied warranty...

Page 14: ...2004 Vector Manufacturing Ltd FT LAUDERDALE FL 33312 Made in China...

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