Common A/C Issues & Causes

If you’re not especially knowledgeable about cars, you may not know what parts are incorporated in your A/C system. Here we’ll break down some of the common symptoms. Most of these problems can be caused by a number of small and larger issues and, in some cases, it may be more than one thing. That’s why it’s important to check the entire system anytime there’s a problem. You may get lucky and only need to replace a faulty hose or recharge the A/C.

• The A/C is blowing warm air. This might seem to happen all at once or it may happen gradually. The air flow is as strong but the air isn’t as cool. This is often caused by a leak, but it can also be caused by clogs or damaged parts, such as the condenser, blower, or compressor. A leak by itself is often easy to fix and not very expensive. If left un-repaired for a long time, though, it can compromise the system and cause further damage.

• The air isn’t blowing out as strong as before. Sometimes your air is blowing out and it’s cool, but it’s simply not blowing out as strong as it did. You might crank up the A/C to the highest setting and still only feel as if you have it on low or medium. This can be caused by a few issues. It may be something as simple as a loose hose or seal that needs to be replaced. It might be something a bit more invasive, like a faulty fan. This can also be caused by a buildup of mildew in the system.

• The A/C isn’t consistent. Sometimes you can have a problem that comes and goes. These can be the most frustrating because a mechanic will often tell you there’s no problem. The mechanic needs to experience the issue when they check the car. They need to recreate the issue in order to diagnose and fix it. If your A/C sometimes runs fine and then sometimes won’t, there might be a few different causes. This might be something as simple as a blown fuse or a leak in one of the seals. It might be something more serious, like an issue with your compressor or the compressor clutch. There may also be a clog somewhere in the system.

• Foul Smell. If your air conditioner is emitting a bad smell, it often means that there’s mold or mildew built up within the system. It may also mean that the filter needs to be changed.

The best way to keep your A/C system healthy is by having the whole system checked when you have your oil changed and car maintenance done. Some issues will cause further damage if they’re not taken care of quickly. That’s not to say that the compressor can’t go or you won’t need to ever repair your A/C. But the better maintained you keep it, the better your chances to avoid costly repairs.
Call us with any questions or if you’d like to make an appointment. 503-667-3900