Samsung FTQ387LWGX Service Manual page 31

4. Troubleshooting
4-1 Failure Display Codes
Safety error
Failure code
E-08
E-0A
- SE -
E-0E
E-27
E-28
CAUSE
Oven heating error
Oven heating over
Shorted key
Door locking error
oven sensor opened
(over 2950 )
Oven sensor shorted.
(Under 940 )
SOLUTION
1. Disconnect power. Open the back cover.
Disconnect sensor harness from control.
Measure sensor resistance:1080 at
the room temperature
problems, replace oven sensor.
2. Check the broil, bake and convection heater.
Check the resistance of the each heater.
3. Check whether DLB of Main PCB, Broil, Bake
and Convection heater relay are being worked
normally.
4. Check whether there is any disconnection of
harness which is linked with main PCB on sub
PCB.
5. Check the resistance of oven sensor
connector on main PCB. (Normal : 2850 )
1. Check whether cable of keypad has been
inserted into connector of Sub PCB.
2. Check whether between Sub PCB and
connector or keypad and cable have a short
circuit.
3. If there is not a problem occurred with
connector on Sub PCB and cable of keypad,
replace the Sub PCB.
1. Disconnect power. Open the back cover.
Check wether harness has been connected
with door lock switch and motor.
2. Con rm whether resistance value of door lock
motor is to be normal one or not.
3. With operating door lockout, measure a
voltage of connector on harness which is
linked with door lock motor.
(Normal Voltage : AC 120V)
4. Check whether door locking switch is being
worked normally.
1. After 20 seconds from starting to work of
oven, buzzer is beeping 10 times long and
then nally it displays "E-27" or "E-28" as
Error message.
2. If a series of function for error is not performed
at all, please make sure through the method
of 4-1 on 31 page.
31
If there are any