SMA SB 2500TL-21 Installation - Manual (Page 74)

Troubleshooting SMA Solar Technology AG
74 SB25-30TLST-21-IA-en-13 Installation Manual
7508 External fan fault The fan is clogged or defective. The inverter may reduce its
power output due to overheating. The inverter continues feeding
into the electricity grid.
Corrective measures:
• Clean the fan
• Replace the fan
Replace fan
7701 to
7703 Self diagnosis Internal device fault. The inverter disconnects from the electricity
grid.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page 92)).
Interference device
8001 Derating occurred The power supplied by the inverter has been reduced to below
nominal power for more than 10 minutes due to overheating.
Corrective measures:
If this event occurs frequently:
• Ensure sufficient ventilation.
• Check the heat dissipation (see Section 9.2 "Checking
Heat Dissipation" (page 62)).
8101 to
8104 Comm. disturbed A fault has occurred in the internal communication of the
inverter. The inverter continues feeding into the electricity grid.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page 92)).
8801 to
8803 No display The display is blank. The inverter continues feeding into the
electricity grid. This error can have the following causes:
• The ambient temperature is so low that the display
disconnects to protect itself.
• The inverter cannot identify the display type.
• No display is connected or the connection is defective.
Corrective measures:
• Wait until the temperature has risen above -25°C.
• Contact the SMA Service Line (see Section 15 "Contact"
(page 92)).
9002 Inst. code invalid The SMA Grid Guard code entered (personal installer
password) is not valid.
Corrective measures:
• Enter a valid SMA Grid Guard code.
Event no. Message Cause and corrective measures