SMA SC 200 - Manual (Page 92)

Troubleshooting and Problem Solving SMA Solar Technology AG
92 SC-BEN100262 User Manual
420 Error text:
ADAPSCP Overtemperature Error type 3
Cause of error:
Heat sink temperature is too high (hardware threshold)
Corrective measures:
• Check that the cooling fans of the inverter bridge are working properly.
• Clean soiled air inlet or heat sink.
• Ambient or cooling air temperature too high.
• If this error occurs frequently, contact the SMA Serviceline.
421 Error text:
ADAPSCP Overvoltage DC Voltage link Error type 2
Cause of error:
DC voltage is too high on the generator side (hardware threshold).
Corrective measures:
• Immediately disconnect the PV generator from the Sunny Central! Danger of damage
to the Sunny Central!
• Check DC voltage.
• Check module wiring and system design.
No. Description