Samsung NX58K9850S Series Service Manual page 85

4. Troubleshooting
Error Trouble Shooting
SYMPTOM
*
*
Oven lamp is not
*
working .
*
*
*
Convection fan is
not rotated .
*
*
The oven smells
and/or smokes
*
when it is initially
started .
*
The LED display is
dim or not visible .
*
*
The buzzer does
not beep when a
keypad is touched .
*
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DIAGNOSIS
Make sure the door lock feature is
not turned on .
Check for a burned out bulb .
Check the harness connections, the
oven lamp relay (RY06), and the
source control relay (RY01) .
Measure the resistance across the
light ballast/socket terminals .
(Normal : ∞)
Check the harness and harness
connector (CN02) on the PCB and
at the terminals at each convection
motor) .
Check the membrane control harness
and connectors (CN08) on the PCB
and touch control panel .
Check the convection fan relay
(RY05) and the connector (CN02) on
the PCB .
Measure the resistance across the fan
motor terminals .
This is normal .
Check the membrane control harness
and connectors (CN08) on the PCB and
membrane control panel .
LED display is inferior .
Check to see if the sabbath function
has been turned on .
The buzzer does not work on the PCB .
* Unlock the controls by pressing and
holding the lock key for 3 or more seconds .
* Replace with a 40 watt appliance bulb .
* Repair or replace loose or disconnected
harness .
* Replace any malfunctioning relays .
* Replace the light ballast/socket .
* Replace the PCB .
* Reconnect a loose or disconnected harness
or replace a damaged harness .
* Reconnect securely or replace a damaged
membrane control harness .
* Replace the malfunctioning relay .
* Replace the PCB .
* Replace the burned out fan motor .
* The insulation around the oven will give off a
slight odor until the adhesive has cured . This
should go away after the first couple of oven
uses .
* The oven is designed to burn off dirt and/or
foreign substances .
* If the oven is dirty, run a self-cleaning
cycle .(See page 53 in the "User Manual" .) A
ventilation system should be used while the
oven is self cleaning .
* Reconnect securely or replace a damaged
membrane control harness .
* Replace the PCB assembly . (PCB and
membrane control glass panel .)
* Press and hold the Sabbath pad(Bake+Touch
to wake-up) for at least 3 seconds . The
display will show the time of day when the
function is turned off .
* Replace the PCB .
85
REMEDY