Alarm conditions:
101A - Supply fan motor failure (Lenze: F_rF, F_0F1). Error in synchronization with fan, fan ground fault.
105A - Exhaust fan motor failure (Lenze: F_rF, F_0F1). Error in synchronization with fan, fan ground fault.
Possible causes:
- Fan failure,
- Fan ground fault,
- Fan drive failure.
Troubleshooting:
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