Symptoms:

One ATS customer asked this 2006 Chrysler Sebring AC service problem which he complained is not cooling his car. The dash panel ac vents blows strong air flow except it was hot air.

Troubleshooting for 2006 Chrysler Sebring AC Service:

An ac compound pressure gage was installed in the compressor inlet and discharge valves. (When connecting this gage, make sure the gage is purged before engaging the ac pressure gages). The low side or inlet pressure was way down at 15 psi which called for 30-50 psi at ambient temperature. The high side or compressor discharge pressure was about 240-250 psi which exceeded the 230 psi max pressure setting.

Using soap test, there was no visible freon leak found on all ac fittings and connections. Since the vehicle AC is not working, the freon was then recovered to prevent discharging the old freon to the atmosphere. A new AC drier from the dealer was installed and the system was evacuated to remove all the moisture inside the AC system including the condenser and evaporator housings. Fresh R134a freon was added (15 lbs as rated) and ac cooling tested again. For some reason, the air coming out was not cool enough and AC clutch was cycling on and off.

Basing on the freon pressure readings, it looked like the expansion valve is frozen which restricts freon flow. This is verified by too low and very high pressures respectively at the gage. Freon was recovered again and new expansion valve was installed which was located on the side of the evaporator housing. After evacuating the system and freon re-introduced, the cooling went back to normal.

Solution to 2005 Chrysler Sebring AC Service

In the final analysis, this cooling problem was solved by replacing the H block expansion valve in the evaporator housing.

Please do not attempt this repair on your own. This example is use to demonstrate the common way to fix a 2006 Chrysler Sebring Service problem which is being practiced by some AC garages. In most cases, a Chrysler DRB scanner is used to check the AC codes to speed up troubleshooting.

Thanks,

Richard