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.
Watch this video to learn how to make your air ICE COLD, if you want to recharge your air, or if you want to know to to force the compressor clutch to engage! Basically when you are low on freon (134a), you have low pressure. You cannot just loose the refrigerant, their has to be a leak.