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Appliance Medic
Appliance Medic, Home Appliance Technician
Category: Appliance
Satisfied Customers: 10831
Experience:  Factory Trained CFC Technician
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cooling fan runs continuously. top oven will not pre heat

Resolved Question:

cooling fan runs continuously. top oven will not pre heat or heat.
Submitted: 7 years ago.
Category: Appliance
Expert:  Appliance Medic replied 7 years ago.
Hello what is the model number? Have you just done a self clean?
Customer: replied 7 years ago.

model jjw9630

yes. we just did a self clean (yesterday) cooling fan runs and top unit wont heat. no preheat cycle, goes straight to the set temp but does not get hot.

Expert:  Appliance Medic replied 7 years ago.
Ok you have one of two issues i would say the first one is the most likely since the unit goes right to the set preheat. The sensor in the back of the unit it is held in by two screw this model has a common issue were these sensor go bad or the wires burn up check the sensor with a ohm meter it should read 1080 ohm at room temp. There is a thermal fuse on top of the unit behind the control panel this fuse has two wires going to it and it should have continuity as well. I would suspect the sensor being at fault because the unit will go right to set temp and the fan is on.
Customer: replied 7 years ago.
i will have to get an ohm meter. in the meantime, how can i turn off the fan? bottom unit works, want some quiet.
Expert:  Appliance Medic replied 7 years ago.
You can not turn just the fan off unless you pull the unit out and disconnect the wires to the fan.
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