Pressure Drops Below Manufacturer Thresholds Disable Most HVAC Cooling and Heating Cycles
https://precision-hvac-repair-sac-apartment-sac-near-liahona-chapel3145.scriblorax.com/posts/beneath-the-surface-of-ac-failure-lies-the-answer-to-replacement
The number one problem with HVAC systems is refrigerant pressure falling below manufacturer diagnostic benchmarks, which prevents cooling or heating cycles from completing