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)