Wattsonic AIO ESS | USER MANUAL
58
Error Message
Solution
AC Transducer Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Relay Check Fail
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Internal Fan Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
External Fan Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Bus Voltage Hard
Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
PV Power Low
1. Check if part of the PV array is sheltered.
2. Check if the sunlight is sufficient at the PV installed area.
Bat OV
1. Check whether the battery voltage exceeds the upper limit of the
battery.
2. Check battery terminal wiring.
Backup OV
1. Restart the inverter.
2. Check the inverter Backup side wiring.
Bus Volt Low
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Hard Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Backup OP
1. Reduce loads connected in the Backup side.
2. Restart the inverter.
Inverter OV
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Inverter OF
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Inverter OC
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Phase Order Err
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
SCI Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
FLASH Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.
Meter Comm Fault
1. Check the Meter wiring.
2. Check whether the Meter is normal.
Bettery Fault
1. Restart the inverter.
2. Seek for help from the installer or manufacture.