Completed furnace maintenance and inspection. I tested components and amp draws. I cleaned flame sensor. I checked air pressure and temp splits. Furnace is currently 14 years old. I performed safety checks to make sure system is still operating safely. Today I found the hot surface igniter is starting to wear down. The blower capacitor is below the manufacturers rating so it is considered failed. This is causing extra strain on the blower motor. The blower wheel is full of dirt and debris. I showed customer findings today and customer decided to leave the system as is for now. The plan right now is to return in the spring and complete work on the system at that time.