Common Saab 9-7x A/C Problems

Many Saab 9-7x A/C problems result from improper operation.  For instance, when operating the air conditioning, it is important to close all the windows. When it is time to repair the A/C, it is essential to ensure the job is done correctly and the same is true with installation.

Faulty Installation

Although the standard Saab A/C that comes with the vehicle is effective, it will eventually have to be replaced, but if the installation of the new unit is faulty, this will lead to all sorts of problems. An A/C unit that is incorrectly installed will have a higher likelihood of low airflow and ducts which are leaky.

Some technicians (or car owners who attempt an installation DIY) will perform a refrigerant change which doesn’t correspond with the specifications recommended by the manufacturer. As a result, the air conditioning will perform poorly, if at all. Those who aren’t trained and qualified to handle refrigerant often overlook charging issues and may exacerbate existing issues by adding refrigerant in a system that doesn’t need it. As such, if you choose to handle refrigerant yourself, you have to know what you’re doing and if you hire a technician it is important to choose one that is experienced and qualified.

Electric Control Malfunction

Both the fan controls and compressor are subject to wear, particularly in cases where the driver activates and deactivates the A/C frequently, which is common among systems that are oversized. Since terminals and wires are also subject to corrosion, electrical contacts and connections should always be inspected during service calls.

Drainage Issues

When the temperatures outside are humid, it is essential to review your condensate drain to determine if it is draining correctly. These drains are vulnerable to clogging, and won’t drain properly if they are not mounted in at the right level.

Leaking Refrigerant

If you notice problems with your air conditioning, one of the first things you should check is the refrigerant levels. If the levels are too low, it means that it was not properly filled during installation, or you’ve got a leak. If leakage is the culprit, merely adding more refrigerant won’t fix the problem. A qualified technician will be needed to test the system, repair the leak and charge the A/C with the proper refrigerant amount. Bear in mind that the performance of your air conditioning will be highest whenever it’s refrigerant charge matches specifications set by the manufacturer. It cannot be overcharged or undercharged. These leaks should also be fixed as soon as possible as they are environmentally harmful.

Sensor Issues

Many air conditioning units make use of sensors, which can be found behind control panels. These devices are responsible for measuring the air temperature which is entering the coil of the evaporator. However, should the sensor be knocked out of place due to a collision, the A/C might constantly cycle or behave in an erratic way. Ideally, the sensor should be close to the coil but should never come into physical contact with it; its location can be adjusted by bending the wire gently which holds the sensor in place.