SMA SUNNY CENTRAL - Manual (Page 57)

SMA Solar Technology AG Failures and Warnings
User Manual SC-BEN092751 57
420 Error text:
ADAPSCP overtemperature
Error type 3
Cause:
Heatsink temperature is too high (hardware threshold).
Corrective measures:
• Check function of the cooling fans of the inverter bridge.
• Clean soiled air inlet or heatsink.
• Ambient or cooling air temperature too high.
• If this error occurs frequently, contact the Sunny Central Serviceline.
421 Error text:
ADAPSCP Overvoltage DC voltage link
Error type 2
Cause:
DC voltage is too high on the solar generator side (hardware threshold).
Corrective measures:
• Immediately disconnect the solar generator from the Sunny Central! Risk of
damage to the Sunny Central!
• Check DC voltage.
• Check module wiring and system design.
No. Description