growatt 3kw Helppp...?

[JainMai]

Hello Everyone!!

I have a Growatt 3kw linked to 3 150v solar in series. The battery is a 24vLiFePo4 power wall from BigBattery.com.
Everything connected, working wonderful and bringing in 23.1 on a cloudy winter day and used hair dryer, no problem. I left my home come back a few hours and the system is dead. Battery dead and Growatt dead. Any help Please...!!!!!

Thank You in Advance

 

[Michael S]

Without more detail, it is hard to be more specific than check your connections, circuit breakers and fuses.

24V HAWK - LiFePo4 - 170Ah - 4.3kWh - BigBattery.com

BigBattery’s 24V 4.3 kWh LiFePO4 HAWK battery is our most versatile 24V solution, perfect for your RVs and campers, off-grid and solar, and industrial applications.

bigbattery.com

If this is the one it has two on the inside and one on the outside.

 

[BarkingSpider]

You may have overcharged your battery and the BMS cut off the connection. Find out how to reset your BMS. Use a multimeter on the battery terminals to see if the voltage is ok.

 

[Ironman]

Growatt maximum voltage is 147 volt, IRRc. The manual says
if your Solar panels’ Vmp (Voltage at maximum power – the lower of the two numbers
on your panel spec) (Not Voc) voltage is between 38.3 V and 57.5V, you can connect
2 in series with matching parallel strings to add up to the number of panels as in
formula above. 20 x 40V panels would be connected in 2s10p

I'd say overvoltage killed something.