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The full brunt of summer is upon us, and that means drivers across the country are cranking up their air conditioning the moment they get behind the wheel. Cold AC is one of the biggest perks of any vehicle, but it certainly has that “you won’t miss it until it’s gone” quality.

With that in mind, you should be on the lookout for signs that there are some AC problems lurking behind your dash, so you don’t get caught in 90 degree heat without any relief in sight. To shed some light on the problems that are worthy of a trip to Integrity Auto, here are five common AC warning signs:

1. No air conditioning

The first warning sign is the most obvious: no AC. If you turn on your car, turn up the air ,and get a whole lot of nothing out of the vents – or warm or hot air – you could have a problem with your HVAC system. This could be one of several issues. First, you may just be out of refrigerant. Or, you could have damaged cooling fans or even something simpler, like vents or an AC unit clogged with leaves or other debris. Thankfully, the experts here at Integrity should be able to quickly diagnose that problem for you.

2. Weird Noises

The next easiest warning sign to spot is weird noises. Say you turn on your AC, but you start to hear banging, rattling or worse? Like with the first problem, something could be clogging up your unit which may be causing those noises. Or, a major part could be worn out and is about to break. Once you start to hear some weird noises coming from your car, stop by Integrity Automotive so our technicians can take a good look.

3. Nasty Smells

Turning on your AC shouldn’t be an unpleasant experience, but sometimes, foul odors start to come out of your vents. This could be a big warning sign of mold growth in your air conditioning unit. A bad smell should be taken care of immediately, since mold can lead to respiratory problems and other health concerns.

4. Water Stains

After running your air conditioning for a while, you will see water drain out from the bottom of your car. This is perfectly normal and a good sign. However, if you don’t see that water draining – and instead are greeted by water stains inside your vehicle – then you could have a problem. Sometimes, the drain on the bottom of your car becomes damaged or clogged, so that water backs up. It will then flow into your vehicle itself, typically pooling under the dash and near the front floor mats. If this is the case, make an appointment with Integrity Automotive as soon as possible.

5. AC Leaks

Low pressure in your AC unit can be a sign of a leak, as can the actual coolant draining around your vehicle. Even so, most leaks are small and hard to spot. The smartest way to determine this is to add dye to your air conditioner, and then trace that dye to the source of the leak. We do not recommend doing this on your own, but allow your trusted technicians at Integrity Auto take care of this procedure for you. Leaks can lead to other, more serious problems down the line.

These are just five common warning signs of air conditioner problems. There are others, though, and should you have any questions or concerns the best course of action is to always consult a professional.