Wolf Gas Range Oven Pilot Light Troubleshooting Guide -... | appliancefaults.com

Technical Background:

The Wolf gas range oven uses a pilot light ignition system. When the oven control knob is depressed, gas flows to the pilot light. The pilot light heats a thermocouple, which generates a small DC voltage. This voltage energizes a safety valve, allowing gas to flow to the main burner when the oven is turned on. If the thermocouple doesn't produce enough voltage or the safety valve is defective, the pilot light will extinguish when the control knob is released.

Symptoms:

The pilot light on your Wolf gas range oven lights initially, but goes out after you release the oven control knob. You may hear a clicking sound, but the flame doesn't stay on. The oven won't heat up because the main burner isn't igniting.

Possible Causes:

Dirty pilot light orifice
Faulty thermocouple
Defective safety valve
Weak pilot light flame
Gas supply issue
Malfunctioning oven control module

Solution:

1

Turn off the gas supply to the range at the shut-off valve (usually behind the range or in the basement).
2

Allow the oven to cool completely.
3

Remove the oven floor and any burner shields to access the pilot light assembly. Use a 1/4-inch nut driver or 5/16-inch socket to remove screws.
4

Inspect the pilot light orifice for debris. Use a small wire or pin to gently clean the orifice. Avoid enlarging the hole.
5

Check the thermocouple connection to the safety valve. Ensure it is clean and tight.
6

Using a multimeter, test the thermocouple output voltage when the pilot light is lit. It should typically be around 25-30 millivolts DC. If the voltage is low, replace the thermocouple.
7

If the thermocouple is good, test the safety valve using a multimeter to check for continuity. If there is no continuity when the thermocouple is heated, replace the safety valve.
8

If all of these check out, the oven control module may be the problem. In this case, contact a qualified technician.

Safety Warning:

Disconnect power to the range at the breaker panel before performing any repairs. Gas appliances can be dangerous. If you are not comfortable working with gas, contact a qualified technician. Always perform a gas leak test after completing any gas line work. Use a gas leak detector spray or soapy water to check for leaks at all connections.

Prevention:

Regularly clean the oven to prevent food spills from clogging the pilot light orifice. Schedule annual maintenance to inspect and clean the burner assembly and gas lines.

Expert Tip:

On some Wolf models, the pilot light assembly is adjustable. Slightly increasing the pilot light flame can sometimes resolve thermocouple issues. Be careful not to make the flame too large, as this can cause sooting.

Frequently Asked Questions

•How do I test the gas supply pressure?

Use a manometer connected to the gas supply test port on the range. The pressure should be within the range specified in the range's service manual, typically around 4-5 inches of water column for natural gas and 10-11 inches of water column for propane.

•Where can I find replacement parts for my Wolf range?

Authorized Wolf appliance parts distributors or online retailers specializing in appliance parts. You will need the model number of your range to ensure you get the correct parts.

•What is the proper way to perform a gas leak test?

Mix a solution of soapy water and apply it to all gas connections. If bubbles form, there is a gas leak. Alternatively, you can use a commercially available gas leak detector spray. If you detect a leak, turn off the gas supply immediately and contact a qualified technician.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the gas supply pressure?

•Where can I find replacement parts for my Wolf range?

•What is the proper way to perform a gas leak test?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: