Trying to find out what gauge of wire i need for a 1500 watt roadpro inverter to wire to batteries of a semi

my roadpro snack master stop working after a month

I would guess the blue is POSITIVE, and goes to the tip of the lighter plug. However, get a voltmeter and check...
Cheers.

any TV shop that still does repairs can fix that

it has grounded out on you inside of your converter,Replace it.

How good is the connection to the battery? there are a lot of amps that have to flow fast and clamps just don't do it, lugged cables do!

Check the Following:

1. Ground from inverter to frame is intact
2. Positive leads are intact and clean
3. Negative leads are intact and clean.

I hope this of help to you please rate if the answer is of any help. If I can help any further will be glad to. Good Luck and have a great weekend.

I have had this happen a few times.

Sadly replacement is the Best option.
Repairs can be %75 the cost of a new one.

The best invert we have been using is a Pure Sine 1500 watt inverter.

Sad news but hope this tip helps.

R/
David

depends on the type of oven but usually a comfortable load is 3/4 the size of inverter out put

If you are referring to the RoadPro RPPI-250

2000 Watts Continuous Power

2500 Watts Power Output @ 10 Minutes

5000 Watts Peak Power Output.

A small fridge will use about 500 -700 watts, with startup wattage at around 2000watts.

So, a dorm fridge will work fine.

the RoadPro converts DC to AC voltage, so a regular 120 volt dorm fridge will work.

I have had this same problem with several power inverters over time. The problem is usually one of three things.

Those starting with the simplest.

1. Too much current being drawn on the inverter.
Solution (Check appliances that are plugged in and make sure they are not drawing more than 1200 watts. If they are unplug the appliance that is using the most current and get an inverter that is more suited to your power needs.)

2. Some power inverters have fuses built on to them. Sometimes multiple fuses. Sometimes, one fuse may burn out leaving one intact. When this happens even small items draw too much current and over load the inverter.
Solution (Replace the fuses)

3. Improper installation. Inverters draw a lot of current. You must use the propper wire size for the inverter. I would recomend at least an eight guage wire directly fused and hooked directly to the battery. Of course like with all things the bigger the wire the better the flow of electricity.

If it is not one of those things stop into a truck stop electronics shop and have the person diagnose it.

Hope that helps.