car air conditioner blowing hot air when idle

In most cases its due to a loss of refrigerant in the system. A leak in your AC system could be causing the unit to blow warm air since there.

Car Ac Not Blowing Or Car Fan Not Working Bluedevil Products

A common symptom of a faulty or failing set of fans is that your car will start running hotter at idle with the AC on as the condenser creates a large amount of heat.

. If it is not then you have a problem. I show in this video what was causing the problem and how I fixed it on my 2005 Hyundai Santa Fe. However when coming to a traffic stop or other non-moving situation warm then hot air blows out the vents.

A leak is typically caused by a mixture of moisture and refrigerant that when combined creates a corrosive acid that eats away at seals valves and hoses in the AC system. No one wants to be stuck in a hot car especially when the weather is already miserable. 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.

Refilling the Freon in your car ac system can be the solution for car air conditioners blowing hot air when idle. 2 cause of AC blows warm at idle Your AC system is low on refrigerant. Your car AC relies heavily on the motor fans to circulate the flow of freon when the car is at rest.

Since the AC compressor is driven by the engine it doesnt pump as much refrigerant when youre at a stop or driving slowly. All passed Honda spec. 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.

The engine produces very little power at idle and may not be able to run the compressor. When your car AC isnt blowing cold air it can be a real drag literally. So check the Freon level in the first place.

If your car ac pauses the flow of air when idling but turns back on when you begin to move the first place you should turn your eyes is the motor fans. Thankfully in this guide we will review each of these car AC problems in detail. 2 Faulty Compressor Leading To AC Blowing Hot Air If your freon levels are OK the reason for your AC blowing hot air might be a faulty AC compressor.

AC compressor has only 1 job. Since I just spent 1300 a few. A small refrigerant leak is the most common reason a cars AC gradually loses its cool.

What happens is this. After starting up again in 5 - 10 minutes the air blows cold again. If I am at a traffic light I can put the van in neutral and press the gas and it will start blowing cold again.

There are a few reasons why your cars AC might not work correctly when the engine is idle. Within 30 seconds to a minute even in the middle of summer your AC should be blowing cold air from the vents. No severe damage to the condenser either.

I had the compressor replaced back in February and the pressure is normal so it doesnt look like it has a system leak. I literally just checked the ac pressure about 20mins ago and the pressure is normal for the temperature outside. Scotty Kilmer mechanic for the last 45 years shows how to fix a car that is blowing really hot air even though the AC system is turned on full cold.

If the fans arent running properly then the refrigerant will leave the condenser and cause warmer temperatures to circulate throughout your cars AC system. Your car AC is actually a heat exchanger that recirculates warm air from inside the cabin and replaces it with cold air. Debris There are several ways debris can get into your cars air conditioning system to.

Three dealers checked the system fluid level pressures and leak tested the system. I have a 2002 Ford Windstar and the AC has started blowing hot when i idle but it blows cold when I am driving. My AC started blowing warm air when sitting idle.

Answer 1 of 7. Refrigerant thats in a liquid state makes its way to the evaporator where it boils as warm air from the cabin flows across it. To compress the freon.

Your AC may blow warm air for just a few seconds when you first turn it on. Other possibilities include a faulty compressor broken cooling fans or an issue in your electrical system. The most common reason is that the compressor isnt turning on.

Fully compressed freon will undergo full expansion and will fully cool down the cooling coils. However it should begin to cool off quickly. The compressor clutch may be.

Bad or Failing Fan Clutch This is another reason for a car AC not blowing cold when idling. Ok so I have a Chevy Trailblazer 2004 vehicle. In the past the air conditioner has worked fine at idleI think dont remember since the last time I used the ac was last year.

I agree with the other answers but there is one more possibility particularly for cars with rather small engines.

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