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3. Case of no microwave oscillation
1) When touching M/W button, oven lamp turns on and Fan motor and turntable rotate, and cook indicator in
display comes on.
*Cause: RELAY 1 does not operate.
- Check method
2) When touching M/W button, oven lamp does not turn on and turntable motor does not rotate but cook indicator
in display comes on.
*Cause: RELAY 4 does not operate.
- Check method
3) When touching M/W button, oven lamp turns on and fan motor does not rotate but cook indicator in display
comes on.
*Cause: RELAY 5 does not operate.
- Check method
STATE
RELAY 1 ON
RELAY 1 OFF
POINT A
+5V DC
GND
POINT B
GND
+24V DC
STATE
RELAY 4 ON
RELAY 4 OFF
POINT A
+5V DC
GND
POINT B
GND
+24V DC
STATE
RELAY 5 ON
RELAY 5 OFF
POINT A
+5V DC
GND
POINT B
GND
+24V DC
