User Manual

2.7 Visual Check
The PINs should not be bent. A module with twisted pins will still work as long as it is the bottom module in the
tower. So if you find twisted pins in a module, make sure to position that module in the bottom of the tower.
9
EC 107
Undervoltage.
- Shut down the system quickly to avoid further discharge. Check whether the system can shut
down normally (by pressing the LED button for 5s).
- If the system cannot shut down normally, lift the BCU
- Follow section 2.8 (Voltage measurement and undervoltage instruction)
EC 108
- Check DC-cable connection on battery, inverter and combiner box (if there is any).
- Restart system according to manual. (note: to properly shut down you need to press the
button for 5 seconds. Make sure to start the battery before starting the inverter!)
If problem remains: Test another BCU if available.
EC 109
Make sure that the latest firmware is installed and that the battery has been properly restarted.
If problem remains: Probably caused by a module. Follow the “Module exclusion method” (see
Section 2.9).
EC 110
Low Voltage. The system needs to charge very soon and should not be discharged further!
1. Shut down the system quickly to avoid further discharge. Check whether the system can
shut down normally (by pressing the LED button for 5s).
- If the system cannot shut down normally, lift the BCU
- Follow section 2.8 (Voltage measurement and undervoltage)
2. Avoid further discharge of the battery, by searching the problem while the battery is
completely off / BCU is lifted.
- Check the other steps in the service guideline and also check the inverter (latest FW /
correct/defined restart?) and with the inverter service, why the force charge doesn’t work
(e.g. any fault at the inverter). Do not turn on the battery before making sure the inverter
should be able to charge the battery.
3. If everything has been checked and the system cannot be charged, make sure to avoid
further overdischarge (e.g remove BCU) and contact the service.
EC 111
Normal when the battery has just started. It will turn to solid white when:
- inverter communication works (--> Check inverter communication, Section 2.3 )
- right after saving / redoing the configuration (Be Connect: go through whole wizard // Be
Connect Plus: resave the configuration by clicking on “Setup” and restart tool to refresh)
Please also make sure all dip switches are in the correct position (For most configurations all
on the left side (exception e.g. parallel connection and Kostal Piko MP). Refer to Manual!)
If EC111 remains even after the inverter detects battery and even after redoing app
configuration: Remove the topmost module and check whether the event code disappears. If
not, test another BCU if available.
EC 112
Check inverter communication (Section 2.3)