52
CHECK METHOD
(2) When touching “START” pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
* Cause : RELAY “1” does not operate.
CHECK METHOD
5) When the door is opened during operation, the Count down timer does not stop.
CHECK METHOD
POINT
A
STAGE
RELAY “2” ON
-24VDC
RELAY “2” OFF
GND
POINT
A
B
STAGE
RELAY “1” ON
-5VDC
GND
RELAY “1” OFF
GND
-24VDC
POINT
A
B
STAGE
1) DOOR OPENED
OPEN
-5VDC
2) DOOR CLOSED
CLOSE
GND
CHECK NO.
METHOD
REMEDY
1
Check the stage (ON,OFF) of the secondary
Replace secondary
Interlock switch by resistance measurement.
interlock switch.
RY1
L
R
D9
B
-24V
Q3
R10
A
IC1
18
IC1
16
B
-5V
R8
C2
R9
D6
SECONDARY
INTERLOCK
SWITCH
CN1
A
