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5 Reasons Your Car’s A/C is Blowing Warm Air
There is nothing more annoying during those hot summer months than your air conditioning blowing warm air. There are numerous reasons why your car’s A/C might not be working properly. Check out these five common reasons below.
1. Leaking Refrigerant
A leak can happen for a wide variety of reasons and can be extremely difficult to detect. A couple reasons your refrigerant might be leaking include a loose joint or a worn service valve. If you suspect you may have a leak, it’s a good idea to contact a professional as soon as possible.
2. Clogged Air Filter
You might have a clogged air filter. This might not be the cause of the problem, but it could definitely be contributing to it. It’s important to ensure your car’s A/C filters are cleaned regularly.
3. Wrong Thermostat Settings
This is the most common cause of air conditioning issues and is fortunately a very easy fix. Double check your thermostat settings and make sure it’s set to “cool” and “auto”.
4. Issues with the Condenser or Compressor
A blocked or broken condenser can lead to your car’s A/C system blowing warm air. Another reason could be due to a faulty compressor. Your compressor may fail if it hasn’t been used for a while. A good way to keep your compressor is good condition is to run you’re A/C for 10 to 15 minutes once a month, regardless of outside temperature.
5. Faulty Wiring
Your air conditioner might not be working correctly due to faulty wiring. These problems do occur, although they are often difficult to identify. If you suspect faulty wiring may be the cause, it’s best to talk to an experienced technician.
It’s wintertime in the Midwest, which means a lot of snow and ice. In addition to making sure your car’s heat and high beams are up to snuff, you should also check on the defroster. You could be in big trouble if it stops working in the middle of the chilly season!
Why is the Defroster So Important?
It’s common sense to crank up the car’s heat when it’s cold outside. However, doing so can create condensation on the windshield, making it difficult to drive safely. When the temperature drops below freezing, a hard layer of ice can also accumulate on the windshield, obscuring your vision.
A functioning defroster eliminates both of these problems. It uses the warm air from the car’s heating system to melt the ice on the windshield. During the winter months, when temperatures can drop to single digits, being able to stay inside your warm car while your car’s defroster clears your windshield is an added luxury.
Some cars also have a rear defroster for the back windshield. While the front defroster uses air currents to heat or cool the windshield, the rear defroster is powered by electricity.
Signs Your Defroster Needs a Repair
Clogged fresh air intake or vents. Your front defroster relies on the air vents, the fresh air intake, to do its job. If one or both are blocked with debris, it could affect the defroster’s performance. Keep your air vents clean and ensure a functioning defroster by using a BG product to help destroy any debris or bacteria.
Faulty thermostat or heater core. The thermostat valve is usually closed, but an open one can cause your car to not heat itself properly. If your heat isn’t working, neither will your defroster. This could also be a sign of a broken heater core.
Broken blower. Blowers can naturally wear out over time or develop blown fuses. When the blower is malfunctioning, it won’t be able to supply air to the windshield.
Bad grid or tabs. Sometimes an electrical wire or tab may break off of the rear defroster. If this happens, it won’t be able to draw enough power to function properly.
Living an active lifestyle means sticking to a schedule that accommodates everything needed for you and your family to achieve your goals. A dependable vehicle is a key part of that equation, and when the temperature drops, you want the assurance that your car, and its heater, are functioning properly.
How A Car Heater Works
The moment you start your car, the engine begins to heat up and continues getting hotter as you drive. Some of the excess heat is lost through the exhaust system but the remainder is managed by the engine coolant. Once the vehicle has reached its normal operating temperature, the coolant circulates through the engine and transfers the heat to the radiator and heater core. A fan controlled by the passengers in the vehicle blows the heat from the heater core into the vehicle cabin.
Why Your Car Heater is Blowing Cold Air
It can be frustrating on a cold, winter day to turn on the heat in your car and have nothing but cold air blowing from the vents. There are several components in your vehicle’s engine that work together to provide your interior heat, and one or more issues could be happening.
If you don’t have enough engine coolant, it won’t be able to carry sufficient heat to your heater core to provide warm air. Have your air coolant levels checked. This could solve the issue immediately.
The heater core could be malfunctioning. This component is responsible for all heating actions in your vehicle, including defrosting. Have your car’s heater core checked by a technician as soon as issues arise.
The buttons and switches in your vehicle used to control the heat and fans are not exempt from wear and tear. After years of use they can break or get gummed up. You may need to have them replaced.
Once your engine warms up, the thermostat should reflect this. If it stays in the “cold” zone due to a broken thermostat, it cannot signal the vehicle that the engine is warm. The coolant will fail to transfer heat to the heater core. Having a new thermostat installed solves this right away.
Water leaks from any point in your engine will affect your vehicle’s heater. Leaks can happen in the hoses, radiator, and water pump. These parts need to be checked by a professional to prevent engine damage and to ensure you have interior heat.
Getting ready for work or school in the morning is already so hard in the winter months. Having a malfunctioning car heating system only makes it worse! If your heating system isn’t working properly, now’s the time to have it repaired before the temperatures drop even lower.
Why is a Heating System Important?
In addition to making your commute more comfortable, your car’s heater is also important to the car’s motor. It’s harder for gas to evaporate as the temperature decreases. If your heating system is not working, the fuel combustion system won’t be able to run as efficiently. This is especially true for older cars with carbureted engines. If your car is newer, you could technically drive it unheated without an immediate problem, but you’re putting more strain on the engine over time.
Does Your Car’s Heating System Need a Repair?
There may be a problem with your car’s heating system if you’re experiencing any of the following:
A musty smell. If you start to smell something humid in the cabin, it means the coolant is leaking from somewhere. You can double-check this by looking around your car for a spill.
Steam from the engine compartment. If your car is smoking from under the hood, it could be because of a coolant leak. Depending on the amount of steam, you could run the risk of your engine overheating if you don’t have the car properly serviced.
Foggy windshield. If your windshield becomes covered with condensation while driving, using the defroster would normally fix this issue. However, the defroster needs coolant, so it won’t function properly if there’s a leak.
No heat. Obviously, if you’re only getting cold air out of your vents, there’s a good chance your heater needs to be fixed! This could either be due to a hole in the heater core or a broken motor.
If you suspect that your car’s heating system is damaged, it’s a good idea to have it looked at sooner rather than later to avoid higher repair costs. At Custom Complete Automotive, we strive to keep your car in tip top shape and keep your ride as comfortable as possible during these cold winter months. For more information about our services, contact us today!
Does Your Car’s Air Conditioner Need Maintenance?
Air conditioner maintenance is an important element of your vehicle’s care routine when the weather heats up. If it’s been several months since the last time you used your car’s air conditioner or you notice any problem signs, consider having it checked in order to prevent or repair any air conditioning problems this summer.
Signs that Your Car Air Conditioner May Need Repair
No one wants to deal with a malfunctioning air conditioner on the hottest day of the summer. Fortunately, many air conditioner problems do not happen overnight. Instead, there are many tell-tale signs that your air conditioner may need to be repaired. Some common signs that your car’s air conditioner may be malfunctioning include:
A warm, weak, or otherwise poor air flow
If you notice warm air coming from you air conditioner, there are a few common reasons that are easy to fix. Low refrigerant is the most common cause of warm air, which prevents the system from working properly. Other possible causes include a failed clutch cycling switch, a broken or blocked condenser, or other blockages within the system.
When Should You Schedule a Repair?
If you don’t use your air conditioning very often, you may not consider fixing it to be a top priority. However, like any car problem, small issues that are left unfixed can quickly become larger issues that could potentially require more expensive repairs. In order to keep your car in the best condition possible, we recommend getting your air conditioner inspected as soon as you notice a problem.
At Custom Complete Automotive, we care about giving our customers the tools they need to keep their vehicles in excellent condition. Contact us today to learn more about keeping your car well-maintained or to schedule a repair!