Gridboss and Flexboss Install Question

[Brazos94]

Ok, I have installed my gridboss and flexboss along with two power pro indoor batteries. I also have the emergency shutdown button installed as well. My problem is when I have the battery breaker on inside the flexboss and then turn on the power pro breakers, the Flexboss starts up but quickly trips both power pro battery breakers and the flexboss shuts off... I have 12 solar panels installed but no grid power or loads hooked up currently to the gridboss. I wanted to try powering up and commissioning the gridboss and flexboss using the power pro batteries only... Also, I have the Tigo cca and tap installed, but not sure I have the correct wiring.... The flexboss will not stay on long enough for me to commission the dongle on the eg4 app... Suggestions?

 

[Quattrohead]

Start with all breakers off, then turn on the flex boss breaker and the battery breakers, then hit the power button on the battery.

 

[Brazos94]

I tried that exact sequence, but still tripping the breakers and showing the warning light then shuts down...

 

[DIYrich]

Turn everything off. Turn on ONE battery breaker and check voltage at the flexboss battery connection. Make sure polarity is correct. Repeat with other battery.

Repeat, but only turn on flexboss.

Confirm that all polarity is the same.

 

[Brazos94]

Got it working.... Had the battery communication cables in wrong location.... Many thanks....

 

[Quattrohead]

Ah doh
Is there something that could have been better in the documentation or was this just a tired error?

 

[skimandan]

I ran into the same problem with the exact same setup when I did my final wire routing and connected the communication to the master battery. All the battery cables and other cables blocked my vision of the comm ports so I connected to the battery com port instead of the can port on the master battery.

It could be more clear in the Indoor Wallmount manual, but pretty low priority compared to other issues.