Yaskawa OH (blinking) fault code meaning
Yaskawa / OH (blinking)
Series: L7
Heatsink overheat (warning)
drive
Meaning: The drive heatsink temperature exceeds the setting of L8-02 or the overheat protection threshold 0H: exceeds L8-02 (the stop mode can be selected using L8-03) 0H1: exceeds approximately 100°C (the stop mode is coast to stop); Ambient temperature too high; Heat sources nearby
Possible causes
Source: Yaskawa L7 Series Elevator Drive User Manual, Fault Diagnosis P267