7-3
SVC TEST MODE
7-2 Basic Check Summary
Relay PCB
SMPS PCB
Main system PCB
Symptom : no heating(F9)
-. Check : All heater relays and
DLB relay are open
Symptom : Oven hot(F6)
-. Check: All heater relays are
open/shorted
Symptom : Oven lamp not
operating
-. Check the Lamp coil’s resistance
Symptom : Sensor error or
no heating (F1,F2)
-. Check : Sensor resistance
Symptom :
Door lock fail (F10)
-. Check : relative part
Symptom : Conv. Fan open(F7)
-. Check : All Conv. fan relays