SMA SUNNY BOY 240 Instruction Manual page 62

11 Troubleshooting
Event Event, cause and corrective measures
number
6415 Self diagnosis / Interference device (6415)
The reference voltage test failed.
Corrective measures:
• Disconnect the Sunny Multigate from voltage sources (see Section 10, page 51)
and re-commission it (see Section 7, page 43).
• If this message is still displayed, contact the SMA Service Line.
6702 Interference device (6702)
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
7001 Fault sensor interior temperature (7001)
The temperature sensor for the indoor temperature of the Sunny Multigate is defective.
Feed-in operation will be interrupted.
Corrective measures:
• Contact the SMA Service Line.
7702 Self diagnosis / Interference device (7702)
An relay error has occurred.
Corrective measures:
• Disconnect the Sunny Multigate from voltage sources (see Section 10, page 51)
and re-commission it (see Section 7, page 43).
• If this message is still displayed, contact the SMA Service Line.
8101 to Communication disturbed (8101, 8102)
8102
An error has occurred in the internal communication. This can be caused by one of the
following: Feed-in operation continues.
Corrective measures:
1. If several Sunny Multigate devices are installed in a PV system, check whether the
AC cabling of the inverters to the Sunny Multigate is laid separated from each
other. If the AC cables are not laid separately from each other, do lay the
AC cables from the inverter to the Sunny Multigate in separate locations.
2. If the problem persists, contact the SMA Service Line.
8104 Interference device (8104)
The cause must be determined by the SMA Service Line.
Corrective measures:
• Contact the SMA Service Line.
62 SMG-SB240-IA-en-11
SMA Solar Technology AG
Installation Manual