Fault
Causes
Remedy
PRF
code
PRF-EX
code
Thermo-contacts have
reacted
Capacitor not or not correctly
connected
Connect capacitor
2
2
Motor blocked
Contact manufacturer
2
2
Fan does not reach
nominal speed
Electrical switching devices
set wrongly
Check and possibly reset setting
of switching device
2
2
Motor coil defective
Contact manufacturer
2
2
Drive motor has been
designed wrongly
Contact manufacturer for check
of start torque
2
2
Table 4:
Faults and troubleshooting
12.5 Replacement parts
Only use original parts from the manufacturer
Clearly state the code number of the necessary part and the type of fan.
1
2
3
4
5
6
1
Motor
4
Rotor
2
Motor block
5
Taber insert
3
Motor disk
6
Housing
56
