My air conditioner is not working coolant system has been charged and power coming from the compressor. on and off for a while. It only blow hot air for By coolant you mean freon ? compressor running now or has it stopped ? If it is running continuous and no cool air only heated air is coming out of vents. might have a problem with the blend door inIf compressor is not running now after you charged it and was short cycling after you charged it. say you got a pretty good leak and the freon has leaked out again Being only a year old, you should be able to get this covered under warranty, if the problem resulted from a leak. Blowing HOT air, versus AC simply not getting cold, is usually caused by the temperature blend door being stuck open to the heater core. Either the actuator failed or the door itself got stuck, or you have a faulty climate control switch/setting. Most of the time it's the actuator wearing out from age, but with your car being so new, it might be something in the climate control switch or a module.

Check with the dealer and see if this is covered under warranty. When the temperature outside is cooler, say less than 80°F, and I turn my AC on, everything works great and I get nice cold air in the car. In the late afternoons however when the temperature is above 90°F, I get cold air for 2-3 minutes then I hear a 2-5 second groan followed by about 5-10 seconds of warm air and then everything returns back to normal again with cold air blowing for another 2-3 minutes before the cycle repeats. Anyone have ideas of how I can determine what is wrong? The AC is the type where you just choose a fan setting between 0 - 4 (no thermostat to keep it at a set temperature). No work has ever been done on the AC. I can visually see the AC compressor turning on under the hood when I turn the AC on in the car. Also worth noting is that my car sat for 3 weeks without being started while I was on vacation and this problem developed only once I got back and started driving it again.

Thanks for any advice. I have seen this on a VW Passat. The problem in that case was a malfunctioning condenser fan. In cooler weather ambient temperature and air flow provided sufficient cooling to keep the high-side pressure within limits. At higher temperatures, there was not enough cooling, and the pressure went high enough to trip the high-pressure switch, at which point warm air came from the vents. So I would suggest a quick and easy check is to make sure that the condenser fan is running.Browse other questions tagged vw ac or ask your own question. hi i have a 2001 volkswagen jetta and well my problem is that i am not getting very hot air when i have the heater on and i am getting very annoyed with my mom always complaining about how she doesnt like the car and i can put it at max air and max heat and still only gives warm air. i have asked a few people and they say that it can be the thermostat or the the a/c button isn't working but the a/c is. and when i press the button to turn off a/c, a/c stays on even if it says it's off.

josue villarreal, yes, it is possibly that it is your thermostat. It is also possible that your heater core is clogged or the your fan is not working properly to forced air through the heater care. Also, make sure that you have enough antifreeze in your vehicle. Check the heater hoses, the lower hose is where cooled coolant reenters the engine. it should not be cold but will not be as hot as any other cooling system component. air conditioning units walmart canadaIf there is no circulation (hose, radiator and heater core cool) then you may have a bad coolant pump. ac unit leaking water atticIf both hoses are hot that would mean you have enough flow through the core, check the servo that opens and close the vent doors. daikin inverter ac units

If they do not open properly, you would not get enough flow to heat up your interior.. Just looked at the service manual for your specific model. thanks for letting us know which one it is. Check your Temperature Flap cable. Make sure that it is properly adjusted. Temperature flap cable, installing and adjusting Heating and ventilation controls are installed. Turn temperature rotary control knob to left onto stop. Attach center wire of cable -1- to the temperature flap lever -2-. Push temperature flap lever -2- to stop -arrow A- and secure outer cable -1- with clip -3-. Turn temperature rotary control knob to left and right onto stops. When turning the rotary control knob, both end stops must be reached. Regarding the a/c button, if you have the selector on defrost, the a/c should stay on. If you turn the a/c off, and turn the selector to one of the other settings (such as floor or vents), does the a/c turn off then? Regarding the heater temperature, if the fan is blowing normally, it is likely either the thermostat is stuck open or the heater core is clogged, either internally (not allowing the coolant to flow through it properly) or externally (not allowing the moving air to pull the heat off of it properly).

Does the car warm up to its normal operating temperature? If you have a temperature gauge, check to verify that it warms up to the middle of the normal range. If it does not, chance are good your thermostat is stuck open. If it does, then the thermostat is probably working correctly, and it is more likely that the problem is with the heater core. There is a remarkably common problem with Jetta heater boxes. I have discovered it in my own 2003. When we purchased the car used we noticed a flurry of foam from the vents when heat or A/C was turned on, and thought not much of it. I just figured it was probably a lining of some vent that had worn over time. Since that time...with extremely poor heater performance my research led me to discover that the vent doors, once sandwiched with foam deteriorate over time and leave stamped metal doors with huge holes punched in them. These now obvious holes leave hot air to mix with outside air, and never divert hot air as they would if they were solid.