Pilot Light & Thermocouple Troubleshooting Guide

Pilot Light & Thermocouple Problems

Problem: The pilot lights, but it does not stay on


1. Confirm the main gas supply is open:

  • Ensure the main gas valve feeding the oven is fully open.

2. Purge air from the gas line:

  • Air inside the gas pipe must be released. This may take several minutes before only gas is flowing.

3. Check for spark at the pilot assembly:

  • Verify that a strong spark is present to ignite the pilot flame

4. Vacuum the burner area:

  • The burner is located inside the oven.
  • Try vacuuming the area around the burner to remove ash, dust, or debris.
  • Ash buildup can block airflow or interfere with the pilot flame, causing ignition problems.
  • IMPORTANT: When performing this operation, the oven must be completely OFF including the pilot light.
  • This is normal: cleaning the burner area will shut off the pilot for safety.
  • After cleaning, relight the pilot following the standard ignition procedure.

5. Inspect the thermocouple:

  • Ensure the thermocouple is clean and free of debris or food residue.
  • Check for damage, harsh wear, or misalignment.
  • The thermocouple must sit directly in the pilot flame

6. Check for bent or pinched pilot tubing:

  • Inspect underneath the oven to ensure the pilot gas tube is not bent or restricted

7. Verify correct gas pressure:

  • Natural Gas: 7 inches W.C.
  • Propane (LP): 11 inches W.C.
  • Incorrect pressure can cause the pilot to light but not stay on

8. If the burner still does not work after all troubleshooting steps:

  • You may send the burner to us for repair.
  • We will fix it and return it to you in less than 4 days.
  • If the oven is under warranty, this service is free.
  • If the oven is not under warranty, repair charges will apply.
  • Please check the warranty dates in your contract or invoice.
  • Be sure to follow the manual for burner disassembly.
  • All disassembly must be performed by a qualified technician.
  • Always close the main gas supply before performing any operation on the oven


Summary:
If the pilot lights but does not stay on, check: gas supply, air in the line, spark, burner cleanliness (including vacuuming ash and dust), thermocouple condition, tubing alignment, gas pressure, and
warranty status.