3. Troubleshooting
Situation Solution
Disconnected wire unit.
Reconnectthewireunitofthefan.
Blocked fan. Unblock the fan. Ensure that the fan can turn freely.
Damaged wire unit.
Check if the wire unit of the fan is not damaged. Repair if possible, otherwise replace
with new one.
Fan end of life. Replace the fan. See "Cold mirror fan", page 239.
Error 7995 : “Fan speed engine too low”
This error may be preceded by a warning.
Situation Solution
Disconnected wire unit.
Reconnectthewireunitofthefan.
Blocked fan. Unblock the fan. Ensure that the fan can turn freely.
Damaged wire unit.
Check if the wire unit of the fan is not damaged. Repair if possible, otherwise replace
with new one.
Fan end of life. Replace the fan. See "Light processor compartment fan", page 244.
Error 7997 : “Fan speed anode too low”
This error may be preceded by a warning.
Situation Solution
Disconnected wire unit.
Reconnectthewireunitofthefan.
Blocked fan. Unblock the fan. Ensure that the fan can turn freely.
Damaged wire unit.
Check if the wire unit of the fan is not damaged. Repair if possible, otherwise replace
with new one.
Fan end of life. Replace the fan. See "Anode fan replacement", page 257.
Error 7999 : “Fan speed cathode too low”
This error may be preceded by a warning.
Situation Solution
Disconnected wire unit.
Reconnectthewireunitofthefan.
Blocked fan. Unblock the fan. Ensure that the fan can turn freely.
Damaged wire unit.
Check if the wire unit of the fan is not damaged. Repair if possible, otherwise replace
with new one.
Fan end of life. Replace the fan. See "Cathode fan replacement", page 249.
54 R59770072 FLM SERIES 19/03/2007
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