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101A/105A - Fan motor failure

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:

  1. Fan failure,
  2. Fan ground fault,
  3. Fan drive failure.

Troubleshooting:

 

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