Call came in from a homeowner on Forestdale Drive who had been noticing the system running longer than usual and a couple of rooms not reaching the set temperature — not an emergency, but something had clearly been off for a while. When the tech got there, he found the air filter was completely clogged, the evaporator coil had begun to ice over as a result, and the blower motor was running at reduced capacity due to restricted airflow. The system was a mid-2000s Carrier two-stage unit, and the low refrigerant pressure reading — around 58 PSI on the low side — pointed to the coil freeze-up rather than a refrigerant leak, which was good news. Coil was allowed to thaw, filter was swapped out, airflow was checked at each register, and the system was cycled through a full run to confirm pressures normalized and temperatures balanced out across the house. Customer was surprised something as straightforward as a clogged filter had caused that much disruption, and honestly, it comes up more than people expect on systems that haven't had a general check in a year or two.
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