The most likely cause
of an automotive air conditioner cooling problem is no refrigerant in the
system. If the refrigerant has escaped past a leaky compressor or O-ring seal,
leaked out of a pinhole in the evaporator or condenser, or seeped out through a
leaky hose, the leak needs to be identified and repaired before the system is
recharged. On many systems, the compressor will not turn on if the refrigerant
is low because the "low pressure safety switch" prevents the compressor
clutch from engaging if system pressure is low. This protects the compressor
from possible damage caused by a lack of lubrication.
One of the first
things auto AC repair East Hanover NJ mechanics should check is compressor engagement. If the
compressors magnetic clutch is not engaging when the air condition is turned
on, the problem may be a blown fuse or a wiring problem. If the fuse is blown,
replacing it may restore cooling temporarily. But the underlying reason for the
fuse blowing in the first place needs to be identified and corrected to prevent
the same thing from happening again. If the magnetic clutch is receiving
voltage but is not engaging the compressor, the clutch is defective and needs
to be replaced by auto AC repair East Hanover NJ mechanic. If there is any evidence of leakage
around the compressor shaft seal, the seal should also be replaced.
If the clutch works
but fails to turn the compressor (the belt may squeal in protest!), the
compressor has seized and auto AC repair mechanic needs to replaced it. Before
they can fix a cooling problem, first they have to diagnose the underlying
cause, which is often the most time-consuming and challenging part of the job.
One way to speed up the process is to use temperature checks to zero in on
critical components. During most checks, a certified auto AC repair mechanic
will do a system fan level check, they will read the PSI pressure to verify the
Freon level, an output temperature check will be performed and the blower fan
and the compressor will be examined thoroughly to see if it’s working properly.
Only used in orifice tube system. It contains a desiccant bag also. The
accumulator provides a similar function as the drier in the expansion valve
system, but is located in the evaporator outlet instead.
This positioning
allows the accumulator to collect any un-evaporated refrigerant that may still
be in the liquid state, hence protecting the compressor from liquid lock
damage. The evaporated gas then returns via the large tube to the compressor
“suction” port to begin this whole process again. Belts and hoses will also be
closely inspected to see if any signs of aging or potential failure are
present. To check for leaks, a fluorescent dye will be injected into the system
to see if a leak is present. From a basic thermostat to electronic climate
control system get your air conditioning system ready for those hot days when
you need it most. Ride in comfort with the air condition blowing cold again schedules
your auto AC repair today.
