For this job, Technicians performed a furnace maintenance tune up on a 10 year old Carrier system. Technicians checked all safety devices and components that are in use during the heating season. Technicians found the igniter is looking really rough, The flame sensor is super dirty as well as the blower motor assembly is super dirty, The indoor coil does not have a secondary water safety switch, Finally the system does not have any surge protection at all. Technicians made several options for repairs.