Kenmore 795.583*.410 Service Manual page 27

1-12. Ringing of compulsory operation, compulsory frost removal buzzer
1) If pressing the test button in the main PCB, "Phi ~" sound rings.
2) In selecting compulsory operation, alarm sound is repeated and completed in the cycle of On for 0.2 second and Off for
1.8 second three times.
3) In selecting compulsory frost removal, alarm sound is repeated and completed in the cycle of On for 0.2 second , Off for
0.2 second, On for 0.2 second and Off for 1.4 second three times.
1-13. Defrosting (Removing frost)
1) Defrosting starts each time the accumulated COMPRESSOR running time is between 7 and 50 hours. This time is
determinated by how often and how long the doors are opened.
2) For initial power on or for restoring power, defrosting starts when the compressor running tume reaches 4 hours.
3) Defrosting stops if the sensor tempreature reaches 41°F (5°C) or more. If the sensor doesn´t reach 41°F (5°C) in 1 hours, the
defrost mode is malfunctioning. (Refer to the defect diagnosis function, 8-1-15).
4) Defrosting won´t function if its sensor is defective (wires are cut or short circuited).
1-14. Sequential operation of built-in product
Built-in components such as the compressor, defrost removal heater, freezer compartment fan, Cooling Fan and step motor
damper are sequentially operated as follows to prevent noise and part damage from occurring during testing procedure.
Function
Above 45°C
Lower than 45°C
(In service)
TEST MODE1
TEST MODE 2
Load Operation Sequence
POWER
ON 0.3
COMP
sec.
ON
PIPE HTR
ON
0.3 10
Sec Sec
POWER Defrost
ON H/T ON
0.3 5
0.3
Sec Sec
Sec
Disp'
PIPE PIPE
F Door
H/T ON H/T OFF
0.3
TEST SW OTHER
sec.
(PRESS LOADS
OFF
Once)
:In case of the defrost sensor
Temperature: +5°C↓
0.3
sec.
TEST SW
COMP
(PRESS
OFF
2 times)
F-FAN
0.3 0.3
DUCT
sec. sec. &
MOTOR
C-FAN
CLOSE
ON
0.3 5
Sec Sec
Defrost
H/Bar H/T H/Bar H/T
H/T OFF
ON OFF
5
0.3Sec
0.3Sec
Sec
Disp'
& &
COMP
F Door
ON
H/T H/T
ON OFF
0.3 0.3
F-FAN
COMP sec. sec. STEPPING
&
ON MOTOR
C-FAN
OPEN
ON
0.3
sec.
F-FAN
DEF
&
HEATER
C-FAN
ON
OFF
27
Remark
If error occurs
during
0.3 operation,
STEPPING
sec.
initial
MOTOR
operation is
ON
not done.
•
It si a load
movement
sequence in
case of the F/R
room closed.
60Sec
F-FAN
DAMPER
C-FAN
OPEN
ON
If pressing SW
once more in the
test mode 2 or
temperature of
defrost sensor
is more than 5°C
it returns to the
test mode for
initial operation
(comp operates
0.3
after 3 minutes).
sec.
STEPPING
MOTOR
CLOSE