My problem isn't fixed after calling themReview your phone call to Comcast - Xfinity Home Security Systems support. Here are some things that other customers said after calling 888-379-2546 and talking to a Comcast - Xfinity Home Security Systems customer service agent:
Telltale Clues to Your Air Conditionerâs Life Span. 1  The A/Câs age â The average air conditioner life span is roughly 15 years. If yours is over 10 years old, you can expect to see a steady loss of cooling capacity and efficiency. Older equipment is more prone to breakdowns too, so necessary repairs are more frequent.
The average air conditioning system will last between 10-15 years. Even if your air conditioning system has not stopped working completely, it could be worth looking into replacing your older system for a new system that is more energy efficient.he average cost to replace an air conditioning unit, without any work to the current ductwork, generally starts around $2,750. This price will include the A/C unit and labor costs. These prices are only indicative of a new cooling system, if you also need to replace your heating system this price will increase.