Power Inverter Help

Improper ground.. Is my guess.

 

Just make sure you are not doing this on a company truck!

 

if IT IS a company truck, i would HIGHLY ADVISE you to have the shop install it.

if you are an o/o, i would HIGHLY SUGGEST you pay a shop to install it.

that way, if anything goes wrong, you can SUE for bad workmanship. you really can't sue yourself...!!

 

Yes because it could very well void your warranty if something goes wrong!

 

inverter is bad?

 

hook it direct to battery then if that works install it
If your hooking it to the fuse board that 3k inventor will draw to much thus shutting down the LVD low voltage dector aka buzzing sound also if hooking to fuse board on the axu leg make sure all axu power is off aka fans cab lights it will draw to much and you will pop a 40 amp fuse. if it is a shaker 08 and lower the inline fuse is located jump seat dog house by the door jam

 

Smaller gauge wire needed! Go for at least 3 gauge AND copper!
You can use either 3 gauge copper jumper cables or welding cable.
You need a circuit breaker WITHIN 12" of the positive side of the battery.
The ONLY place you should be connecting to is the batteries, not a fuse panel.
Have connector ends on all the cable ends that fit all the connectors on the battery, the circuit breaker and the inverter. Should be 2- 9/16" ( battery)
2-1/4" (circuit breaker)
2 for whatever the inverter has.
Hopefully you have the inverter type that you just peel the cable back and push into the hole and tighten down the screw.
NAPA sells connector ends and so should the welding supply store you buy the welding cables from.
Also get a 12 volt 20 amp breaker from NAPA or your auto parts store. My last one I got from O'Reilly and it was like $15 and had a push button reset!
Be sure when you connect to the batteries you connect to the set that is on the truck side and not the starter side if the electronics are set up with a battery separator system. This way if you drain the batteries you are hooked to, at least the truck will start.

Are you sure that the inverter is 3000 watts and NOT SURGE to 3000 watts and actually has a smaller output! That could be the problem!
Is the "pot" the only thing hooked to it?
Are you sure the pot is less than the output of the inverter?

 

I would agree that the 4 gauge at that length is too small a wire to use for this setup. I just installed the Cobra 2500 watt inverter that runs a microwave and coffee maker in our van. I used 6 feet of 1/0 cable to and from the battery with an ANL 250 amp fuse on it's own set of terminals. Results are good, so far, but I haven't used it extensively yet.

If you decide to go for the 1/0 gauge wire with your 4 gauge connector port(s), you might need to grind down the 1/0 to 4 gauge connector from the cable to the inverter.

Just remember to keep your DC power lengths to and from the battery as short as humanly possible. It's much easier to run an AC extension if necessary.

Also, make sure you ground the chassis of the inverter to the vehicle body with 8 gauge or better and as short as possible.

Here's an example of my install: