LG Range F9 Error code

General
1

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Brand: LG
Model Number: LRG4115ST
Main Symptom: Oven burner wont light
What happens & when: Burner wont light when using bake feature. After 4 or 5 starts sometimes oven will light. Broiler works fine and range top works fine. When trying to use oven bake features the ignitor glows normally everytime but burner will not light like gas valve is not sending gas to burner. Gas valve works fine with broiler and cooktop. Oven sensor and igniter ohm out properly

Error Code (if any): F9
Parts or tests already tried:
Photos / video link:

2

The first thing you would want to do is to make sure that the oven sensor is good and that the wiring is good. The sensor should have a resistance of 1080 ohms at room temperature. If the sensor is good then check to make sure that the igniter is coming on. If the igniter is coming on then test the oven safety valve for 3.2 to 3.6 Vac when set to bake. If there is proper voltage then the valve would be the issue and if there is not then this would be a faulty igniter.