Based on the appliance manual and safety reasons, your appliance needs annual maintenance, costing $100 to $150.When the appliance has a problem in the middle of the winter or summer, you need to find someone to come to your home and check it to detect the problem; you need to shop around to find a good and trustable company with a reasonable price the service call will cost you $120 to $150 plus you need to spend a lot of time to find a good deal.Also, when you find out what parts are faulty, you need to pay for labor to replace that parts. The labor cost will vary based on which part needs to replace and how long it takes, between $200 to $800.By subscribing to the SILVER PLAN, all these costs will be covered. So you don't need to spend time and money to find someone for a service call, annual maintenance, or labor.