LG F1496AD1 - Dry Heater Trouble

Is Thermostat closed ?
After power off, is the resistance of Dry Heater out of
range 33~37Ω?
Replace the Dry Heater.
Dry Heater Trouble
YES
YES
NO
Replace the Thermostat.
NO
Replace the PWB assembly (main).
NO
When checking voltage between connectors(1,2)
on drying, is the voltage AC 220-240V as the figure ?
1
2
30