Step1: Turn off power and allow the equipment to cool completely.
Step2: Relieve any internal pressure before opening the unit.
Step3: Remove the component housing where the O-ring is installed.
Step4: Carefully take out the old O-ring without scratching the sealing groove.
Step5: Clean the groove and mating surface thoroughly for a proper seal.
Step6: Lightly lubricate the new O-ring with food-grade lubricant if specified.
Step7: Install the new O-ring evenly without twisting or stretching.
Step8: Reassemble the unit, restore power and check for leaks during operation.