Samsung NE597R0ABSR, Руководство по обслуживанию

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39
4. Troubleshooting
SYMPTOM DIAGNOSIS REMEDY
oven not operating
(No power,
No display)
*
Measure an input voltage. (240 120V
or 208 120V)
*
Measure an input voltage of terminal
block.
*
check circuit breaker.
*
Make sure that the state of wire is
connected with Terminal block.
*
Measure voltage of
connector(CN08,CN09) on main
PCB L1~N : 120V
*
Measure secondary voltage of Low
Voltage Transformer.
Red + Red color : 13.5V
Yellow color : 8V
*
Replace of repair if harness has been
loosen or disconnected.
*
Replace if resistance of Low voltage
transformer primary coil is over M
Ÿ .
(Thermal Fuse out)
*
Make sure that the relay on sub PCB
is being worked normally.
*
Make sure whether harness between
connector (CN04,CN05) on sub
PCB and connector (CN04,CN05)
on main PCB has been loosen or
disconnected.
*
Replace sub PCB if relay has been
damaged or there is any cracking on the sub
PCB.
*
Repair harness is connected main PCB with
sub PCB.
*
After con ¿ rming whether harness has been
inserted into relay on sub PCB or not, take
action follow as;
-
Replace or repair harness.
-
Replace or repair sub PCB.
*
Measure resistance both ends of
terminal on thermostat.
(normal : 0 ohoms)
*
Check whether harness is connected
terminal on thermostat has been
loosen or disconnected.
*
Measure voltage regulator
(IC02,IC03) on main PCB.
-
IC02 : 7812(DC 12V)
-
IC03 : 7805(DC 5V)
*
Replace the thermostat.
*
Replace or repair harness.
*
Replace or repair after con ¿ rming the state
of working of main PCB.
Oven temperature
is risen slowly.
*
It will display “E-08” if it fail to reach
100
Û F(38 Û C) within 10 minute in a
state of room temperature.
*
Replace after checking whether there is
any problem with oven sensor.
(1080 Ÿ at the Room temperature)
*
Make sure whether harness is
connected with Broil, Bake and
convection heater has been loosen
or disconnected.
*
Repair and replace harness.
*
Make sure whether Broil, Bake,
and convection heater has been
disconnected.
*
After taking out terminal from each heater,
measure resistance of heater and then
replace that if it is not a normal resistance
value.
*
Make sure that heater relay and
pattern on sub PCB.
*
Replace or repair relay.
*
Replace or repair sub PCB.
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