Also make sure that the power switch on the inverter is turned off as well.
No power to my breaker box with solar panels.
Turn off the main power switch on the circuit breaker.
If your solar system is not delivering sufficient power for which it is rated for the resulting situation is called a low power situation.
If the panels are connected in series the voltage of each panel is added but the amperage stays the same.
The factors that could contribute to a low power problem are.
No continuity indicates a break in the wire.
Use a voltage tester to be sure the power to the panel is off touching electrically charged wires or bus bars inside the panel can be deadly.
In the case of panels in parallel a 30 amp fuse is required for each panel.
In a parallel system a combiner box is used that holds the fuses breakers to each panel plus one or more.
The second fuse between your solar panels and charge controller is a little bit different to figure out.
New panels are in a new combiner box new breakers.
1 choose the right circuit breaker for solar the power coming from your grid tie solar system is 240vac so you will need a double pole circuit breaker of the right current rating see 2.
Twist the set of wires together at the receptacle box and check the wires at the panel box end with the continuity checker on your voltage meter.
Switch the main circuit breaker to the off position.
The main power switch is typically located at the very top and center of the circuit breaker panel.
If your panels are smaller than 50 watts and use only 12 gauge wires and 20 amp fuses are required.
This is the most common type of problem and a few quick troubleshooting steps will help you find the source of the problem.
The size of this fuse is dependent on how many solar panels you have and how they are connected series parallel or series parallel.
Disconnect the wire from the circuit breaker and the receptacle.
Then as long as all your work occurs below the main breaker you will not be exposed to any charged power in the panel box.