I have 2 AC300 units each with 3 B300 batteries running in split phase mode. Using the 30amp breaker to simulate a power outage it switches from grid to battery power fine. When I turn the breaker back on to simulate power being restored I get an alarm and “011. H-Bus Voltage High”. Does anyone have any ideas why this is happening.
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Hi @HarleyBob, Regarding the “011 H bus voltage too high” error, we have some troubleshooting methods. We’d like to know if you have connected the AC300 to a home distribution box. If so, please ensure you have added a Transfer Switch (Sub Panel) to isolate the machine’s AC output from the grid.
Alternatively, try disconnecting the distribution panel. Does the issue still occur?
Yes I have a transfer switch kit for my split phase AC300’s which I purchased from Bluetti. If I have the transfer switch set to “Line” I do not get the error. If it is set to “Gen” I do get the error.
Hi @HarleyBob, We would like to know the SN code of your AC300 and all firmware versions. We plan to push the latest firmware to resolve this issue.
Meanwhile, we want to confirm if the input breaker is connected only to L1 and L2 (live wires) without connecting the N wire (neutral)? In other words, is the N wire not passing through the breaker?
Additionally, please note that if you need my assistance, please @BLUETTI_CARE, otherwise, I might not see your message and be able to help you promptly.
Hello,
The error message now reads 008 OCP (Over Current Protection) - Hardware
SN: 2134000148204
On the App it says that the firmware is up to date. Here is display information:
IoT 9014.12
ARM 4032.11
DSP 4031.30
The neutral is not running through the breaker. It is attached to the bus bar in the panel.
Thank you for trying to help.
Hi @HarleyBob, I have reported to our R&D department, and they suggest you contact the customer service team and repair it.
The U.S. customer service email is service@bluettipower.com.
I have contacted them.
Thank you