Customer has 16 y/o Carrier furnace matched with 21 y/o Tempstar AC that operates for whole house. System was not cooling due to AC breaker being in OFF position. Noticed that system is R22 based and compressor is reading high amperage. Condenser coils are damaged. Contactor is pitted. Replaced 14x25x1 filter. No water protection is present. Run capacitor is bad. Blower wheel cleaning needed. AC breaker is wrong size. Due to furnace being in crawlspace, furnace should be 90%+ furnace. Informed customer of all findings. System is operable.