SMA SB 2500 Installation - Manual (Page 51)

SMA Solar Technology AG Troubleshooting
Installation Manual SB25-30-IA-en-51 51
9 Troubleshooting
If the inverter displays other blink codes or error messages than those described below, contact the
SMA Service Line.
You will also find a description of display messages during operation, status messages and
measurement channels in the user manual provided.
Do not perform any repairs that are not described here and take advantage of the 24-hour
replacement service (inverter ready for shipping and handed over to a freight-forwarding company
within 24 hours) and the SMA Solar Technology AG repair service instead.
9.1 Blink Codes
Green Red Yellow Status
Flashing Flashing Flashing OK (startup phase)
Is permanently lit Is not lit Is not lit OK (feed-in operation)
Is permanently lit Is not lit Earth fault or varistor defective
Is permanently lit OK (initialisation)
Flashing quickly
(3 x per second) Is not lit Is not lit OK (stop)
Is permanently lit Is not lit Earth fault or varistor defective
Flashing slowly
(1 x per second) Is not lit Is not lit OK
(waiting, mains monitoring)
Is permanently lit Is not lit Earth fault or varistor defective
Goes out briefly
(approx. 1 x per second) Is not lit Is not lit OK (derating)
Is permanently lit Is not lit Earth fault or varistor defective
Is not lit Is not lit Is not lit At night: OK
(overnight shutdown)
During the day:
Electronic Solar Switch is not
attached
Is lit/flashing Fault
Is permanently lit Is not lit Earth fault or varistor defective
Is lit/flashing Earth fault or varistor defective
and fault