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[ 6 ]
(Defrosting diagnosis)
Turn power OFF. After approx. 30 sec.,
open the refrigerating room door and
re-energize. (Buzzer beeps continuously)
Forced defrosting (Measurement is impossible when
DEF-thermistor is set at 10°C or higher because
defrosting ends immediately)
After approx. 15 sec., the voltage measured
across
and
of CN1 on the main PWB
⑦
is equal to supplied voltage? (e.g. 240 V)
NO
Replace main PWB.
Disconnect CN1 from the main PWB.
Measure the resistance
between
and
of CN1
⑦
on the wiring
approx. 286
(defrost heater 185W)
YES
Check cause of defrosting failure
· Check door packing
· Check mounting seal of E.V. cover Assy
Resistance of 3P connector between
1 and 2 on E.V. cover ass'y is normal? (286
YES
Check def. heater wiring for loose
connection or disconnection.
YES
Power off
NO
Between 2P connector
E.V. cover Assy is carrying current?
YES
NO (Open)
)
Replace def. heater.
[ 7 ]
(Cooling Fan motor system diagnosis)
Under compressor operating,
close the door switch
Cooling Fan motor
rotates?
Check cause of defrosting
failure
· Dislocation of fan
· Check door packing
· Installation of E.V. cover Assy
· Defective seal
Fan locked ?
Check position of fan.
and
on
NO
Replace Fan motor.
Replace fuse Assy.
23
SJFS810VWH
NO
YES
NO
YES
Replace main PWB
The fuse in the circuit
of fan motor may have
blown out.
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