Tracking down electrical issues like loose wires can be very tedious. Thanks for your question about your daughter’s Mazda CX7. Another reason why your car AC fan is not working could be due to your cabin air filter. If neither of these turn out to be the problem then you’ve got a loose wire somewhere either on the motor, the ventilation controls or in between. The fact that it doesn’t blow at all is an indication that something is wrong with your blower motor. The fan is operated by a motor and there are a few things that can go wrong with the motor, which can cause the fan to work sometimes and not other times, or it can completely stop working. Today my a/c has stopped blowing completely. The next component to look at would be the fan speed knob in the HVAC controls and then the actual blower motor to make sure all the wires are connected properly and have continuity to the next junction or component. I’ve been told it’s a rather time consuming job to tear apart the dash and replace the heater core so I’d like to be more certain that’s the issue before I delve into it. We would recommend having these plastic tubes inspected and replaced if necessary. 8 Answers. We recommend adding 1 can of the Red Angel A/C Stop Leak (http://store.gobdp.com/a-c-stop-leak-aerosol-00222/) and then following it up by recharging the Freon to the proper level. Fortunately, your air conditioner not blowing is a common problem and a relatively easy fix without having to bring your car to the repair shop. Front and back, all vents. It may help to find a wiring diagram for your truck as you’re going through the process to help you keep track of what you’ve already checked. My car has an automatic transmission. My Ac Cools Sometimes And Does Not Sometimes. 1999 Audi A4 Ac Not Cooling. Thanks for your question about your Toyota Camry. The Front Blower Motor Relay (also known as the AC Relay), located behind the junction block with a black connector, B05, is the culprit. There are a series of doors and flaps inside the vents in your Jeep that control which vent the air blows out of and whether it goes over the cooling coils, the heater core, or both. His HVAC fan stopped working completely despite whatever setting he put it on (defrost, auto, different fan speeds and temperature, different vent locations). The fan in your Audi A4 has one job, it's as obvious as it sounds, it's designed to fan your engine, which helps cool it down. It just stopped blowing completely. when you turn the ac off and switch the setting to heat the air still blows cold, what can I do for that one? I can then switch the air-con on and adjust the blower speed up and down … My Air Conditioner Is Not Working It Has A New Air Conditioner Compressor, But It Wont Turn On. 37%. They include wiring diagrams and technical service bulletins. you can hear the blower, but no air blowing out. I took my car to the car wash for the first time a couple weeks ago and ever since then my air has gone in and out. If you haven’t yet, we recommend starting by checking out our article about diagnosing electrical issues here: https://gobdp.com/blog/diagnosing-electrical-problems/. The surrounding air then also cools, and in turn keeps you from melting… Cracked block or leaking radiator? I’m just looking for advice to confirm that the evap core is most likely the culprit. My problem with my car is. Beyond that, you may want to pay a visit to an A/C specialist in your area. Once the leak is sealed, you can add the correct amount of R-143a refrigerant to your cooling system getting your air conditioning back to working like normal. If your car is still under warranty then we definitely recommend taking it to the dealership for repair. If you don’t find any burnt wires, try heading to your fuse panel and looking for burnt out or melted fuses to help you find the source of your problem. 4H0959126A Pressure sensor 1 7H0820896 O-ring, Next, check the LIN cable connecting the vehicle electrical system control module to sensor for cuts or chaffing. I have cleaned and changed the coolent system, renewed th … read more AUDI A4. So, I assumed I needed a new resistor. Then it works again when I get in it for a few minutes. Alldatadiy.com, on the other hand, uses the factory diagrams. Does a failing fan for the AC have anything to do with an easy fix like a fuse? The problem also appears to be with the blower fan as I cannot hear it working. When I turn on my ac, I get no movement in the fan, and also when the engine is getting warm not … It sounds like it is beginning to fail and will eventually stop working altogether. You can also here The pump kicking on in the engine compartment. AC Refrigerant Leak. It is possible that your problem is with the blower motor assembly. For a quick read on electrical problems like this, check out our article about that here: https://gobdp.com/blog/diagnosing-electrical-problems/. 2. The last day or two neither has helped the air blow. Usually when an AC system freezes up it’s actually because the evaporator is not getting warmed enough by air from your cabin. It has always maintained coldness. One of the first things they will do is start making a fair amount of noise. These fans are usually a source of problems for the cooling system on the cars and should not be neglected when you start getting signs that the fans are going bad. System has freon in it. I thought about charging the system but would like some advice first. Any help would be appreciated. If that isn’t the problem you may have a faulty motor control switch or loose wiring to your blower motor as those don’t often fail. Most of the time these problems are caused simply by a blown fuse so we recommend finding the fuse panel inside your car and checking those fuses. It will work when you get up to speed and blow out cold air or heat but if you are just idling nothing at all blows out. What could it be? You may be low on refrigerant. Ok, I struggled to get out the old resistor (mostly by feel as it’s cramped down there) and it looked like it was in good condition. It has been very hot this summer, i got in my car to go to work and i tried to turn on my ac it had been working the night before but now it just dose not do anything. If your fan stops blowing on one speed but works on another, then you have a bad blower motor resistor. Yes, if your electric fan is not working the a/c will cycle on and off. Again, noting inside turns on and blows when i turn on the control. If you find your cabin air filter and it is dusty, dirty or filled with debris then that is mostly likely your problem. Your AC only working on high probably has to do with the blower motor resistor. If not try adding BlueDevil Red Angel AC Stop Leak (available here: http://store.gobdp.com/a-c-stop-leak-aerosol-00222/) then adding freon again to get things back to normal. After a while of this, I started it one day and it did not blow at all. Coolant fans not running when ac is turned on. For your Grand Prix it is possible that your hear core is clogged so check your coolant color and make sure it’s bright green and clear. In addition, Audi has found that the LIN cable connecting the vehicle electrical system control module, J519, to sensor G395 may be pinched or cut. Once you’ve got a new blower motor installed, you need to make sure your AC system doesn’t freeze again so you don’t short out your new motor as well. I’ve asked multiple mechanics and no one has an idea and haven’t had the time or money to take it somewhere yet. My 2013 Hyundai i10 has one fan and as far as I can see one coolant temp sensor. If you need to dig into your doors, dash or console, Alldatadiy.com is the better choice because Eautorepair.net doesn’t any interior or exterior trim or body part removal. but as I was driving it the other day, all of a sudden the vents stopped blowing air. If your car’s AC isn’t blowing air, it could be a problem with your car’s fan. Having similar issues on my 98 audi a4... current testing and analysis: The heater/ac blower does not come on. First, there should be a small drain hose in the bottom of your air box. 259 Great Deals out of 9,813 listings starting at $999. The couple times I did add r134a the compressor engaged and began to blow cold. Red Angel will seal leaks in A/C systems that can hold 5 inches of vacuum for 25 minutes or 15 inches of vacuum for 5 minutes. I have checked the relays under my dash (that I could see) and looked in the ecu box for more fuses and relays (people had said I would have a relay in there, I do not. The product that we have for sealing a leak in the evaporator is called the Red Angel A/C Stop Leak (http://store.gobdp.com/a-c-stop-leak-aerosol-00222/). DTC 00256 – A/C Pressure/temperature Sensor -G395 – Incorrect Signal DTC 00256 – A/C Pressure/temperature Sensor -G395- No signal/communication DTC 00457 – Vehicle Electrical System Control Module -J519- Please check DTC DTC 00256 – A/C Pressure/temperature Sensor -G395- Incorrect Signal DTC 01592 – Air Quality Sensor -G238- No signal/communication DTC 00256 – A/C Pressure/temperature Sensor -G395- No signal/communication, A4 2009-2012 VIN range 000001 – 999999 A4 2013 VIN range N000001 – N045670 A4 2013 VIN range A000001 – A231729 A5 2008-2012 VIN range 000001 – 999999 A5 2013 VIN range 000001 – 071355 S5 / RS 5 2013 VIN range 900000 – 902787 A5 Cabriolet 2010-2012 VIN range 000001 – 999999 A5 Cabriolet 2013 VIN range 000001 – 015616 S5 Cabriolet / RS5 Cabriolet 2013 VIN range 900000 – 900501 A6 2005-2012 VIN range 000001 – 999999 A6 2013 VIN range 000001 – 134357 A7 2012 VIN range 000001 – 999999 A7 2013 VIN range 000001 – 134357 A8 2004-2012 VIN range 000001 – 999999 A8 2013 VIN range 000001 – 029602 Q5 2009 – 2012 000001 – 999999 Q5 2013 VIN range 000001 – 083307.
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