Step1: Turn off gas supply and allow unit to cool.
Step2: Ensure area is well ventilated and wear protective gloves.
Step3: Remove burner assembly carefully using appropriate tools.
Step4: Unscrew existing pilot orifice without stripping threads.
Step5: Inspect and clean fitting threads remove debris if present.
Step6: Install new orifice securely align properly before tightening.
Step7: Reassemble burner components ensure correct alignment.
Step8: Restore gas and test for leaks; check flame use soap solution.