Samsung NX58H5650WS Service Manual page 51

4. Troubleshooting
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.
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.
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.
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 for at least
3 seconds. The display will show the time of
day when the function is turned off.
* Replace the PCB.
49
REMEDY