GIANT 200AMP INVERTER ARC WELDER NO POWER TO THE LEADS

There are several things that could cause this:
1. The relay (contactor) that switches on the arc is not closing and it could be bad.
2. The diodes in the power supply are bad.
3. The low voltage transformer is bad.

Never heard of anything like that.

the current setting is not working correctly
indicates that the amp setting for the wire is too low or if it is an inverter , the volts setting is far too low

make sure your work-piece has a proper ground. and maybe check your gas connection. no leaks. maybe turn gas down.

Make sure the switch for remote power or control at machine is on the right setting. It will arc but very faint if this switch is not on the right setting.

I know whats wrong licoln is a giant peice of **** i had this same thing happen to my ranger 8 look at your pc board 2 chips fell out ill bet on it

Transformer is burned out. Various windings are taken off at different points to alter the amount of power, they have eventually burned right through , So that is why some worked and some didn't It has now completely gone. The cost to replace the transformer may well exceed the cost of a new welder.

Please rate my help++++Thanks for using FIXYA

Check ground connection at welder along with your ground clamp. Bad connection could be the issue. Also check settings on your welder.

check if the load on it is not more than its capacity and check the batteries if they are still in good condition

sounds like you lost one leg of power to the unit,check power source and the the plug on the welder.