How to diagnose and resolve the Manager30's FA11 Fault
This information is applicable to the following products:
- The Manager30 S2 (BMS1230S2)
- The Manager30 S3 (BMS1230S3, BMS1230S3-NA)
- The Manager30 S3 with RedVision Display (BMS1230S3R, BMS1230S3R-NA)
HOW DOES THIS FAULT APPEAR?
The Manager30 display will show ‘FA11 Fault’.
HOW DOES THIS FAULT OCCUR?
The FA11 fault code occurs when the Manager30 detects a voltage outside its normal operating range. The fault prevents charging from any source until it is cleared.
To determine the cause of this short circuit, it will require diagnostic testing. REDARC recommends seeking the support of an installer.
DIAGNOSITC FLOW CHART
HOW TO TROUBLESHOOT
- Check if the Manager30 display shows ‘FA11 Fault’. If the display does not show this message, no further action is needed.
- Check the solar panel input voltage. To do this, measure the open-circuit voltage of your solar array. If it is below 32V, proceed to the next step, if it is above 32V relace the solar panels with appropriately rated panels.
- The maximum allowable input voltage from solar panels to the Manager30 is 32V.
- If your solar panels have an open-circuit voltage higher than this, the panels need to be replaced with ones within specification.
- Asses the 240V AC input source. If the 240V source is suspected to be unstable either find a suitable, stable 240V AC source and retry. Confirm 240V is working by plugging in another 240V appliance to the output the Manager30 is connected to.
- If you are using 240V AC power, the fault might be caused by the supply itself. Some power supplies may experience over-voltage spikes or noise which can trip the FA11 fault.
HOW TO CLEAR THE FAULT
If the FA11 fault persists after checking the above conditions, follow these steps to clear it.
- Disconnect all charging sources.
- Unplug the green connector from the Manager30.
- Disconnect the Battery Sensor red terminal located on the auxiliary battery positive terminal.
- Leave everything disconnected for at least 60 seconds.
- Reconnect all components in reverse order and retry.
If the issue persists the Manager unit may have an internal issue, we recommend contacting REDARC’s Technical Support Team.