LG TCD1870QGS Service Manual page 40

Test 5
Test when Ignition is not good... check with power on.
WARNING
• Wear the isulated gloves before you check.
• Failure to follow these instructions can result in death or electric shock.
Trouble Symptom
Measurement Condition
Reset switch
Reset switch
Ignition is not good.
Spark is not occurred during operation.
Check after power on.
Push rest switch 2~3 times and operate
the machine. Check ignition operation and
spark is occurred or not.
Push the micro switch in the air flow
switch
And check spark is occurred dor not.
Check the ignition controller and main
PCB
NO
NO
40
• C heck the gas
YES
supply condition
and the gas valve.
• C heck the air flow
switch.
YES