What could cause an A/C unit to run constantly?

An air conditioning unit that runs constantly can be affected by various factors, but one likely cause is that the refrigerant level is below standard. When the refrigerant is insufficient, the A/C system struggles to absorb heat effectively from indoors. This lower capacity means the system operates for longer durations in an attempt to achieve the desired temperature set point, leading to the unit running constantly.

This situation can arise from leaks in the refrigerant lines, insufficient refrigerant during installation, or other technical malfunctions. Maintaining the correct refrigerant level is crucial for the efficient operation of any cooling system; an inadequate level leads to poor performance and unnecessarily extended runtimes.