An industrial gas-powered stove by Vulcan.

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pilot wont stay lit on oven

pilot wont stay lit on 36L77R oven. Re-lit it once and it stayed lit for a few weeks, but now it doesn't want to stay lit at all. Pilot wont light

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2 Answers

Chosen Solution

These answers are for the burners but will also pertain to the oven:

Cause 1

Spark Module

The spark modules provides power to each surface burner spark electrode. If the burner is produces a weak spark, or if the burner sparks intermittently, the spark module might be defective. Before replacing the spark module, first check the spark electrode and the spark wire. If the spark electrode and spark wire are not at fault, the spark module is likely defective. If the spark module is defective, replace it.

Cause 2

Spark Ignition Switch

When the burner is turned on, the spark ignition switch sends voltage to the spark module to produce a spark. If the spark ignition switch is defective, it won't send voltage to the spark module, and the burner won't be able to produce a spark. If your range's burner isn't sparking, check to see if the other burners are sparking properly. If the other burners are sparking properly, the spark ignition switch is likely defective.

Cause 3

Spark Ignition Switch and Harness

When the burner is turned on, the spark ignition switch sends voltage to the spark module to produce a spark. If the spark ignition switch is defective, it won't send voltage to the spark module, and the burner won't be able to produce a spark. If your range's burner isn't sparking, check to see if the other burners are sparking properly. If the other burners are sparking properly, the spark ignition switch is likely defective. If the spark ignition switch is not sold separately, you will have to purchase the switch and harness assembly.

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Get a new thermal coupler. If that doesn't solve the issue, then you have a clog in the end of the line. Just take it out and clean it. A microscopic piece of dirt was in mine causing the pilot to shut off seconds after lighting.

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