Sunny Boy 2000
Technical Description
SB2000-11:EE
- 44 -
SMA Regelsysteme GmbH
Blinking code 4: Input voltage (PV-panel) too high
The yellow failure indication LED is activated for 5 seconds, out for 3 seconds and
then blinks four times. The code is sent three times.
If the failure persists the indication is repeated.
Input voltage is too high. The PV-panel is generating a voltage higher than the per-
missible 500 V!
Disconnect the PV-panel from the Sunny Boy immediately. Too high
input voltage can cause a non-repairable damage!
Have the circuits of your PV-panel checked. Please see chapter 9, ‘Technical Data’
for the permissible PV input voltage.
