What are common problems with York units?

What are common problems with York units including YCD AC 14 to 16 SEER, YXV 20 SEER variable speed, YP9C furnace 98 percent AFUE modulating, and YH2F heat pump include microchannel coil leaks, capacitor failure, and igniter failure similar to other brands but with York-specific patterns. First, microchannel coil leak after 5 to 8 years due to formicary corrosion causing pinhole leaks, especially in evaporator coil, causing low refrigerant charge, poor cooling with temperature split less than 15 degrees instead of normal 18 to 22 degrees, and ice buildup on indoor coil, repair costs 600 to 1,200 dollars including coil replacement at 400 to 900 dollars plus recharge, more frequent in York LX series that use microchannel. Second, capacitor failure after 5 years causing outdoor unit not starting and buzzing noise, costing 150 to 300 dollars installed. Third, contactor failure after 7 years causing unit not turning on, costing 150 to 250 dollars. Fourth, for York furnaces, hot surface igniter failure after 5 to 8 years causing furnace not lighting, showing error code, replace igniter at 100 to 200 dollars. Fifth, flame sensor dirty causing furnace to light then shut off after 5 seconds, fix by cleaning sensor with sandpaper. Sixth, pressure switch failure showing blocked vent error due to blocked vent pipe or clogged condensate drain for high efficiency 90 percent plus furnaces. Seventh, control board failure after 10 years at 350 to 600 dollars. Service rates around 9 to 12 percent indicate decent reliability for price. Regular maintenance prevents most problems.