Recommended solutions:
1. Observe temperature display.
2. Switch off external AC disconnect,
then back on to reboot the system.
3. Contact post-sales service if not corrected
Recommended solutions:
1. Visually check the DC Surge Protection
Device (SPD)
2. If the indicator is "red" --> Replace the
SPD module.
3. If the indicator is "green" --> Remove and
reinstall SPD module in the socket.
Contact post-sales service if not corrected
Table 7-3 LCD Troubleshooting ALARM
Fault Description / Instruction
Definition: Prompt detection of abnormal
temperature
Possible causes:
1. Temperature Sensor socket connecter has poor
contact
2. Temperature Sensor is damaged
Recommended solutions:
1. Observe temperature display
2. Switch off external AC disconnect, then back
on to reboot the system;
3. Contact post-sales service if not corrected
Definition: Communication inside inverter fails
Possible causes:
Terminal block connecters of internal communication
wires have poor contact
Recommended solutions:
1. Observe for 5 minutes to see whether the alarm
will be eliminated automatically
2. Switch off external AC disconnect, then back
on to reboot the system
3. Contact post-sales service if not corrected
Definition: Cooling fan failure
Possible causes:
1. Fan is blocked
2. Fan service life has expired
3. Fan socket connecter has poor contact
Recommended solutions:
1. Observe for 5 minutes to see whether the alarm
will be eliminated automatically
2. Check for foreign objects on fan blades;
3. Switch off external AC disconnect, then back
on to reboot the system
4. Contact post-sales service if not corrected