NEC Super Script 4400 Maintenance Manual page 255

Code Description of Error
Fan Motor
F0
(Control Cooling)
F2 Fan Motor(OZFAN)
246 SuperScript 4400 — Maintenance Guide
Cause of Error
1. Loose/Broken connection
3. Defective Fan Motor
4. IOD1 Failure
6. MCTL PWB Failure
MCTL
11CN
PGND
1
CTFANON-P
47
1. Loose/Broken connection
2. Defective Fan
Motor(OZFAN)
3. IOD2 Failure
4. MCTL PWB Failure
MCTL
12CN
PGND
2
OZFANON-P
19
Clearance Method
1. Check the connections between:
a) DCN13 of IOD1 and the fan motor
b) DCN1 of IOD1 and 11CN of MCTL P.W.B.
3. If voltage between DCN13-1 and 2 is
trailing edge then replace
3. If voltage between DCN1-47 and 1 is
trailing edge then replace
5.Replace MCTL PWB
IOD1
DCN1 DCN13
CTFANON-P
1
1
PGND
2
47
CTFANERR
3
1. Check the connections between:
a) ECN6 of IOD2 and the fan motor
b) ECN1 of IOD2 and 11CN of MCTL P.W.B.
2. If voltage between ECN6-1 and 2 is
trailing edge then replace
3. If voltage between ECN1-19 and 2 is
trailing edge then replace the IOD2
4. Replace MCTL PWB
IOD2
ECN1 ECN6
OZFANON-P
1
2
PGND
2
19
OZFANERR
3
connector.
the fan motor.
the IOD1 P.W.B.
Control Fan
CTL
FAN
connector.
the fan motor .
P.W.B.
Ozone Fan
OZ
FAN