BMS System Fault E074

Product Discussion BLUETTI Apex & AC Series
1

Hi all, I hope you can help. I would like to know what could be wrong with my AC180 please?

I use the device to hook into medical equipment, so, I’m praying that I can get this sorted before we have a power outage

It has been working fine for the last 6 months or so, although, when trying to use last night my AC and DC outputs were lifeless.

the battery is showing at 100%, when disconnected from the mains it goes to 0% immediatley.
when I plug back in, it springs back into life, shows 100% but AC and DC do not output.

There is an Alarm error of ‘BMS System Fault E074’

When I Click on the SOC icon within the app I get
Battery Status : 100%
Alarm : Single cell voltage low : p008
Protection status : Single Cell undervoltage protection : p040

ARM is v2704.08
DSP is v2078.06
BMS is running v1033.12
(all are reporting up to date)

2

Hi @zeegy, we would like to help you.
For the app error, please tap the SOC icon to check the specific error code.
Clicking in will show relevant P-series error codes. This will help us further troubleshoot the issue.
We have also received your message via Messenger and email, and we will follow up on this matter there.

By the way, please note that if you need my assistance, please @BLUETTI_CARE, otherwise, we might not see your message and be able to help you promptly.