Siemens A37034 fault code meaning
Siemens / A37034
Series: G120-CU250S-2, S120-S150
HF damper: Internal compartment overtemperature
converter
Meaning: Internal compartment overheat; the alarm threshold has been reached. If the internal compartment temperature continues to rise, fault F37036 will be triggered. - The ambient temperature may be too high. - Insufficient ventilation or fan fault.
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P1605; SINAMICS S120_S150 P3201