As we discuss in this brief, the administrationâs reports to the court do not preclude the Legislature from assessing the measures identified by the administration and considering its own strategy for compliance with the court ruling based on its priorities.
The two most common causes of low head pressure at an air conditioner or heat pump compressor motor are: 1  Refrigerant under-charge, due to a refrigerant leak or improper charge.  TXV (TEV) malfunction, over-metering refrigerant.
When the A/C is on, the compressor sucks low pressure refrigerant in, and compresses it to high-pressure, hot refrigerant. The refrigerant travels to the condenser, which is located just in front of the radiator. There the hot refrigerant passes through a series of tubes.