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4. Troubleshooting
4-2 Electrical Malfunction
Component testing procedures
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect power before servicing the range . Replace all panels before operating range . Failure to do so
can result in death or electrical shock .
FIGURE
TESTS MEASURE
RESULTS
Broil Heater
Broil Heater
*
Measure resistance values of
heater’s terminal after taking off
harness from heater .
*
Measure voltage of heater’s terminal
after making oven work by pressing
broil keypad .
*
Approx : 15 ~ 20Ω
(at the room temperature)
*
Terminal voltage of Broil heater :
AC 240V
*
Replace or repair harness
*
Replace or repair sub PCB
Bake Heater
Bake Heater
*
Measure resistance values of
heater’s terminal after taking off
harness from heater .
*
Measure voltage of heater’s terminal
after making oven work by pressing
bake keypad . (Make sure that
voltage has to be measured for more
than 1 minute because heater is
supposed to on-off cycling work .)
*
Approx : 22 ~ 26Ω
(at the room temperature)
*
Terminal voltage of bake heater :
AC 240V
*
Replace or repair harness
*
Replace or repair sub PCB
Door Lock
Door Lock
*
Measure the state of micro switch
and motor after taking off harness
from the heater .
*
Check whether lock work normally
by pressing cooking time button and
delay start keypad at the same time
for 3 seconds .
*
Lock motor
Resistance : 1750 ~ 1850Ω
(at the room temperature)
voltage : 120V
*
Micro switch
COM-NO , COM-NC
*
Replace or repair if harness has
been loosen or disconnected .
Oven Lamp Socket
Oven Lamp Socket
*
First of all, make sure that lamp
filament is disconnected or not.
*
Measure resistance socket’s terminal
after separating harness from heater
and removing lamp .
*
Measure the voltage of socket’s
terminal after having lamp worked by
pressing oven light keypad .
*
Approx :
Ω
*
Terminal voltage of lamp socket :
120V
*
Replace or repair harness .
*
Replace or repair sub PCB
∞
