Your AC Fan(condenser) is might be broken , i.e, Problem with the spindle, sometimes when the spindle is broken on travelling at high speeds , the fan is pushed backwards/inwards and this restricts the motion of the fan and it might slow down or stop causing the compressor to heat and causing the AC to shut down.
Why does my AC not work at high speeds?
You could have a blockage in the acumulator, at the oriface, or in the condenser. Look at the evaporator and check for ice build up, or heavy frost. Make sure your condenser is clean and allowing good air flow. Also make sure the fan is working properly, although this is not usually a problem at highway speed.
Why does my AC stop cooling when I accelerate?
Hello. Typically this occurs due to a bad vacuum check valve under the hood. During hard acceleration the AC door system loses vacuum, causing the doors to default to the windshield. This check valve keeps this from occurring.
Why does my AC stop cooling after a while?
If you’re experiencing AC not cooling while the system is powered on, you could have a clogged or blocked coil. Unfortunately, a wide variety of debris can find its way into this equipment, including grass, dirt, and other contaminants. This can result in a serious clog, which can lead to a system malfunction.
Why is my AC not cold when idling?
Overheated engine. Another common reason for car air conditioner not blowing cold air when idling is an overheated engine. Most cars have two cooling fans, one for the condenser and the other for the radiator. The compressor of the AC system moves heat from the radiator to the condenser.
Why does my car AC cut in and out?
Intermittent cooling is often caused by the components of your vehicle’s AC system freezing up. Typically an iced over evaporator is the culprit. An evaporator covered in ice can’t cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns.
How do I know if my AC condenser is bad?
3 Warning Signs You Have a Bad AC Condenser
- Loud and abnormal noises coming from the unit.
- Significantly reduced cooling capability from the unit.
- The unit is leaking a noticeable amount of fluid past the typical amount of condensation.
Why does my car AC stop working when I stop?
So what caused your air conditioner to stop working? Most likely, your AC system lost its charge of refrigerant. Or, due to an electrical fault, its compressor is not engaging when you turn on the system. Another possibility is that an internal obstruction is blocking the circulation of refrigerant.
Can low oil cause AC to stop working?
Inadequate oil lubricant. To take the heart comparison a step further, think of your air conditioner’s oil lubricant like the blood in your body. If there’s not enough, the system can’t work properly and all kinds of problems can result, including AC compressor failure.
Does coolant affect AC?
Yes, coolant can affect a car’s air conditioning by impacting the car’s temperature, humidity, and airflow.
Why does my AC get warm at idle?
Your AC system is low on refrigerant. Since the AC compressor is driven by the engine, it doesn’t pump as much refrigerant when you’re at a stop or driving slowly. If the system is low on refrigerant, it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs.
Why does my AC start blowing warm after driving for a while?
The most common cause of an AC system blowing warm air is a lack of refrigerant, though, you may also have a problem with your condenser. Other possibilities include a faulty compressor, broken cooling fans, or an issue in your electrical system.
Why does my AC get hot when I park?
Most likely the cooling fan for the condenser is not turning on allowing the high side of the A/C system to get to hot. This reduces the cooling capacity of your system. The cause can be the fan motor, a cycling switch, or a temperature switch depending on the design of the system in your car.