Why is the small fan not running on a VW Jetta?
The big fan provides cooling air for the main radiator. It is the one that runs when the engine needs more cooling. The small fan is for the A/C condenser, it runs when the A/C is active. To make it run (or see that you have a problem) turn on the A/C and put the fan at a non-zero speed. The fan should start running at its slow speed.
Why is the radiator not working on my VW Jetta?
If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Jetta is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.
Are there any problems with the Volkswagen Jetta?
Volkswagen Jetta owners have reported 16 problems related to cooling fan (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volkswagen Jetta based on all problems reported for the Jetta.
When did the Jetta air conditioner stop working?
I bought my brand new 2009 Jetta tdi on 5/28/2009 and 2 days later after I had only driven the car for 200 miles, the air conditioning stopped working when the car was sitting still. I opened the hood after I got to my destination to realize that the cooling fans were not working at all. They would not even come on to cool the engine.
How to diagnose a Volkswagen cooling fan malfunction?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. How much do you know about cars? The cost of diagnosing the P0480 VOLKSWAGEN code is 1.0 hour of labor.
What is the coolant temp in a Volkswagen?
– The engine coolant temperature reaches 106°C (223°F) or more. – The A/C clutch requested. – The vehicle speed is less than 38 MPH. – The engine coolant temperature is 151°C (304°F) or more. – The A/C refrigerant pressure is high.
When does the ecmcontrol turn on the cooling fan?
The ECMcontrols the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay. The cooling fan relay will be commanded ON when the following conditions are met: – The engine coolant temperature reaches 106°C (223°F) or more. – The A/C clutch requested. – The vehicle speed is less than 38 MPH.
When did the VW Jetta air conditioner stop working?
I bought my 2010 Jetta used in June 2013. A month after I purchased it, I noticed the a/c was not working. I returned it to the dealer and they confirmed that the a/c compressor wasn’t working. They installed a new one and I didn’t have a problem until 8/7/13.
Other Common Equipment related problems of Volkswagen Jetta Problem Category Number of Problems Equipment problems 505 Radio/tape Cd Player problems 79 Air Conditioner problems 26 Owners/service Manual problems 24
Where are the air conditioner vents on a VW Jetta?
See all problems of the 2009 Volkswagen Jetta . This vehicle has chrome trim on dashboard air conditioning vents next to driver’s and front seat passenger’s doors, and that chrome trim puts circular reflections (ovals or ring images) in the exterior rear view mirrors, both sides.
What to do if your a / C fan is not working?
The a/c button turns the fans on LOW only, and the fans will still work on high if the engine temperature gets too hot, above 107C actually, or 224F. The only way to fix this is to replace the defective fan.
Why are the fans on my car not working?
It melts and this particular part sends power to the cooling fan thermal switch AND the Fan control module. The fan module also sends power to the a/c compressor. So pretty much the fans don’t work and your a/c blows warm. Check this first before checking other areas.
What happens to the fans when the engine gets too hot?
Both fans always work in tandem. The resistor pack inside the fans will burn out and the fans will stop working on low speed but will still work on high speed when the engine gets too warm. The a/c button turns the fans on LOW only, and the fans will still work on high if the engine temperature gets too hot, above 107C actually, or 224F.
How does the radiator fan work in a Volkswagen?
When the Radiator fan is running, they suck in to close the Shroud off and only allow air to pull from infront or from the grille. When the radiator fan is off, they are allowed to free open, so that the radiator has air flow across the width of the core.
Why is my AC not blowing air in my car?
The climate control system is a key part of that, keeping you cool on hot summer days and warming you up on chilly winter evenings — but if neither the heat nor the A/C are working in your car, that tells us you’ve probably got a problem with your vehicle’s blower fan.
Why is my blower fan not blowing air?
The blower fan resistor is a simple electronic circuit that changes the resistance of the current sent to the blower motor, and enables multiple fan speeds. If you find the blower fan works, but only at a single speed setting, the blower motor resistor has probably gone bad.
Why are my coolant fans not running when AC is turned on?
Coolant fans not running when ac is turned on. AC compressor clutch engage then it will disengage. System has freon in it. It was working find but now nothin7. My car has 234565 miles. My car has an automatic transmission.
How does a radiator fan work when the AC is on?
The electric radiator cooling fan assembly is controlled by a thermoswitch located in the side of the radiator. At higher coolant temperatures, the switch closes to start the cooling fans. Any time the coolant temperature rises to higher than normal levels, the fan will start and continue to run until coolant temperature returns to a normal range.
What to do if your small fan is not running?
So, first thing to do it stop make sure that the small fan should be running by ensuring that the A/C is on. Then if it isn’t running: Test the fan – try turning it by hand to see if it is free, then pull the connector and apply power directly to the fan to see if it runs, you could also meter it to see if the circuit is open.