Diy: trying to connect enphase combiner 3 box

[dvisharia]

Getting 120 volts between line 1 and neutral and getting 120 volts between line 2 and neutral but getting 0 volts between line 1 and line 2. Need help in figuring out what is missing?

 

[James]

Measure
L1 to ground
and
L2 to ground

 

[dvisharia]

Measure
L1 to ground
and
L2 to ground

That is also giving the same behavior.

 

[James]

Are you measuring this at an outlet or at the panel?

 

[davesparks]

The test results you have posted suggest that the line 1 and line 2 terminals you are testing at are in fact both connected to the same line/phase.

As above where are these voltages being measured and what are you using to measure them?

Do you have any 240V appliances and are they working?