What are some common problems with Rheem air conditioners?

Some common problems with Rheem air conditioners including RA14, RA16, and RA20 variable speed include refrigerant leaks, capacitor failures, and coil issues similar to other brands but with some Rheem-specific patterns. First, refrigerant leak from evaporator coil due to formicary corrosion is most common after 5 to 8 years, where VOCs from household cleaners create formic acid that eats pinholes in copper tubing, causing low 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 at 100 to 300 dollars. Second, capacitor failure after 5 years causing outdoor unit not starting and buzzing noise, capacitor provides start boost to compressor and fan motor, fails due to heat, costing 150 to 300 dollars installed. Third, contactor failure after 7 years causing unit not turning on, costing 150 to 250 dollars. Fourth, dirty condenser coil blocked with dirt and leaves causing high head pressure that trips high pressure switch and reduces efficiency by 10 to 20 percent, fix by cleaning coil with hose monthly. Fifth, condensate drain clog causing water leak. Sixth, control board failure after 10 years at 300 to 600 dollars. Regular maintenance with filter changes every 2 to 3 months and coil cleaning twice yearly prevents most problems. Service rates around 9 to 12 percent indicate decent reliability.