Long-term HVAC technician logs and homeowner repair reports highlight several recurring service issues affecting Carrier central air conditioning units. These include frozen evaporator coils caused by restricted airflow from dirty air filters, failing compressor capacitors that prevent the outdoor unit from starting, refrigerant leaks in copper tubing joints, clogged condensate drain lines leading to system water shutoffs, and electronic control board glitches within advanced communicating thermostats.
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