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Can A Dirty Filter Cause Low Subcooling? [Solved]
This can be caused by low airflow (e.g., dirty filter, slipping belt, undersized or restricted ductwork, dust and dirt buildup on blower wheel) or a dirty or plugged evaporator coil. Checking superheat will indicate if the low suction is caused by insufficient heat getting to the evaporator. To check superheat: 1.
Symptoms of Low Evaporator Airflow
Next in the series based on HVAC Refrigerant Diagnostic Quick Sheet Bryan talks Symptoms of
HVAC Training - What a dirty filter does to HVAC system performance.
How
Liquid Line Restriction! What Happens to High Side Pressure & Subcooling?
In this video, I show how a Liquid Line Restriction Affects The Liquid Pressure
