Step1: Turn off and disconnect power or gas supply before servicing.
Step2: Release any pressure from the system to ensure safe disassembly.
Step3: Remove the component housing and carefully take out the old O-ring.
Step4: Clean the sealing groove thoroughly to remove grease, debris, or residue.
Step5: Lightly lubricate the new O-ring with food-grade lubricant.
Step6: Place the new O-ring evenly into the groove without twisting or stretching it.
Step7: Reassemble the unit, tighten securely, and check for leaks during startup.