I just read this here: http://www.american-appliance.com/catalog/newsdesk_info.php?newsPath=13&newsdesk_id=117 that explained how to test if the problem is the thermostat. It said to watch the pilot as you open the thermostat to turn on the oven. If the thermostat is ok the pilot should get bigger, if the pilot does not change when turning on the thermostat, then the thermostat is bad.
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I just read this here:
http://www.american-appliance.com/catalog/newsdesk_info.php?newsPath=13&newsdesk_id=117
that explained how to test if the problem is the thermostat. It said to watch the pilot as you open the thermostat to turn on the oven. If the thermostat is ok the pilot should get bigger, if the pilot does not change when turning on the thermostat, then the thermostat is bad.