Samsung NE58F9710WS Service Manual page 45

4. Troubleshooting
4-2 Electrical Malfunction
FIGURE
Upper Convection Fan Upper Convection Fan
Lower Convection Fan Lower Convection Fan
TESTS MEASURE
* Measure the state of micro switch
and motor after taking off harness
from the heater.
* Check whether the lock works
normally by pressing cooking time
button and delay start keypad at the
same time for 3 seconds.
* First of all, make sure that lamp
*
after separating harness from heater
and removing lamp.
* Measure the voltage at the lamp
sockets terminal, after turning on the
Lamp by pressing the Oven light on
the main keypad.
* Measure resistance value of Motor
terminal after taking off harness from
Motor.
*
after making oven work by pressing
bake keypad.
(Make sure that voltage has to be
measured for more than 1 minute
because Fan is supposed to on-off
Cycling work.)
45
RESULTS
* Lock motor
(at the room temperature)
voltage : 120V
* Micro switch
COM-NO
* Replace or repair if harness has
been loosen or disconnected.
* Approx :
* Terminal voltage of lamp socket :
120V
* Replace or repair harness.
* Replace or repair sub PCB
Approx
*
* Terminal Voltage of Convection
Fan : 120V
* Replace or repair harness
* Replace or repair main PCB.