Most air
conditioning units usually have built-in mechanisms that
automatically shut off the system if the desired temperature is
already met. Whenever there are problems that allow the A/C unit to
continue operating without turning off, its owner must have the air
conditioning unit checked. Usually, at least one of the three
components have problems if this situation happens.
The Thermostat is
Broken
The thermostat sets the
temperature the A/C need to cool the room. If the desired temperature
is reached, the thermostat sends signals to the rest of A/C to
automatically shut off the system. An air conditioning unit with a
broken thermostat may continue cooling the room or house beyond the
set temperature. Repairing or replacing the thermostat may fix the
unit.
The Contactor is
Broken
The contactor is the
system that shuts off the A/C unit. The thermostat usually sends its
signals to the contactor first to shut off the entire system once the
area is cool enough. Depending on the usage of the A/C unit, the
contactor can either wear down or break. Replacement is usually the
solution for this.
The Duct is Clogged
Another possibility for
an A/C to not turn off is if the set temperature is not being met. A
clogged air duct or dirty filter should be cleaned accordingly so
that the A/C can cool properly.
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