Kenmore 795.78733.804 Service Manual page 42

Freezer Fan Error
Is Er-FF displayed?
Yes
Is the connection loose?
CON4
No
Reset and
Enter the TEST 1 MODE
Is the output voltage between
pin2 and pin3 of
CON4 like as below?
Pin3 BK
Pin2 WH
Freezer Fan Voltages Freezer Fan Voltages
Freezer Fan Voltages Freezer Fan Voltages
Test Point Result
pin2 To pin3 12 ~ 16 V
Yes
WH
2
BK
Main
3
PR
PWB
4
CON4
Wiring diagram
Reconnect
Yes
Replace
MAIN PWB
N0
(Position No:
500A)
BK
1 1
RD
2 2
PR
3 3
Housing
c
Does the old-air come out
of the top of the main duct
under Test1 mode ?
Yes
Is the feedback voltage
between pin3 and pin4 of
CON4 like as below?
(from motor to main board)
CON4
Feedbac k Feedbac k Feedbac k Feedback Voltages Voltages Voltages Voltages
Test Point
Pin3 To pin4
Yes
Explain to the customer!
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F-FAN
Check fan motor
N0
(Connector,
Frozen, Locked)
and Replace
(Position No : 404A)
Replace
No
MAIN PWB
(Position No:
500A)
Pin3 BK
pin4 PR
Result
1 ~ 4 V