Step1: Shut off the gas supply and allow the equipment to cool completely before servicing.
Step2: Remove the old pilot valve by disconnecting the tubing connection carefully.
Step3: Apply approved gas-rated thread sealant to the threaded fitting if required.
Step4: Install the new pilot valve securely and reconnect the pilot tubing without overtightening.
Step5: Restore the gas supply slowly, check all fittings with a leak-detection solution, and test pilot flame adjustment for proper operation.