syclonedriver
New Member
- Joined
- May 16, 2021
- Messages
- 96
I've had my Growatt running for about 2 months now. It's been a real trooper, until a week ago. I have it connected to a little over 2100 watts of panels and 400ah of AGM batteries with 2awg cable. It runs 2 refrigerators, deep freeze and the blower on one of my central air units. When everything is running the AC load is about 8 amps.
I week ago I came home and found everything off and the growatt beeping and displaying an error code 56. I reset everything and it worked fine until it transfered from the commercial power to the inverter, then it failed again. After a little research and some testing it seems that the Growatt fails only if it tries to draw power from the batteries.
I load tested the batteries individually and then removed the cables from the unit. I connected a variable load to the cables and adjusted the load to 100 amps, the voltage at the end of the cable was 25.05v. I reattached the cables the to the Growatt and attached a logging voltmeter, I then had my wife disconnect the commercial power and the solar. The unit failed but the voltage on the internal buss bars never dropped below 26.35v. This unit is clearly having issue. The error code is always 56. The unit cannot see my batteries.
I have called my vendor several times but they keep referring me to a different tech that is too busy to take my call. I have an open trouble ticket with them but the tech hasn't called me back. It's been 4 days now.
Am I missing something?
Should I call Growatt directly ?
I really enjoyed doing business with this vendor but I'm quickly loosing faith in them.
I week ago I came home and found everything off and the growatt beeping and displaying an error code 56. I reset everything and it worked fine until it transfered from the commercial power to the inverter, then it failed again. After a little research and some testing it seems that the Growatt fails only if it tries to draw power from the batteries.
I load tested the batteries individually and then removed the cables from the unit. I connected a variable load to the cables and adjusted the load to 100 amps, the voltage at the end of the cable was 25.05v. I reattached the cables the to the Growatt and attached a logging voltmeter, I then had my wife disconnect the commercial power and the solar. The unit failed but the voltage on the internal buss bars never dropped below 26.35v. This unit is clearly having issue. The error code is always 56. The unit cannot see my batteries.
I have called my vendor several times but they keep referring me to a different tech that is too busy to take my call. I have an open trouble ticket with them but the tech hasn't called me back. It's been 4 days now.
Am I missing something?
Should I call Growatt directly ?
I really enjoyed doing business with this vendor but I'm quickly loosing faith in them.