ac fan not working on auto

Condenser fan capacitor is bad. The car AC condenser fan is located under the hood of your vehicle in the front of the car.

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Start date Jul 18 2011.

. All Makes Models. Burnt Out Condenser Fan Motor. After resetting breaker I tried again.

Check the owners manual to determine what indicator lights your vehicle contains. First go inside and turn off the AC. This means that the fan motor will continue to run for one minute after the thermostat shuts off the outdoor unit assuming you have the FAN switch on the thermostat set to AUTO.

Ad Get Instant Quote. Start by checking your thermostat. Blower resistor keep failing.

If there is a problem with the air conditioning system you might get a warning light on your dashboard. It doesnt come on if in auto mode but if I put it in the on mode the blower comes on and I have heat. Chances are its not turning on at all if youre troubleshooting.

There is another limit switch in the blower area L140-40. If the fan on your AC unit isnt spinning there could be a problem with the capacitor andor motor. Running the fan constantly can increase your electric bill by about 50 a month.

Then go check the circuit breaker. Car AC Condenser Fan Location. Uncommon Problem at the Thermostat Prevents Fan from Running on AUTO At the heater or air handler disconnect the thermostat wires entirely - from the two T T terminals and use a small.

Wiggled green wire where it connects in the air handler and auto fan mode seems to be working now. AC blower does not work in AUTO position Thread starter pmhabo. Is your Car AC Blower not working at speeds 12 and 3 but only working in Full Speed.

Make sure they are tight but not too tight. The refrigerant is what keeps the cabin cool. Refilling the Freon in your car ac system can be the solution for car air conditioners blowing hot air when idle.

Circuit Breaker is Tripped. Reconnect all wires and test the fan blade to make sure it is not rubbing against anything. 1 Year12K Mile Warranty.

Replace and tighten the screws holding the fan motor in place. If its not leaking that would be. Fan contactor isnt working.

If you hear buzzing and the fan isnt spinning there may be a capacitor problem. If you find that the AC fan motor is making funny noises or isnt working completely it could be that you need. If the fan on your AC unit stops working it could be something as simple as your circuit breaker tripping or something more complex.

So check the Freon level in the first place. You may need to re-route the electrical wires at this time. If you are satisfied that the thermostat settings are correct check your power supply.

The average air conditioning unit has a 500-watt fan which uses almost as much energy as a refrigerator uses during the course of a year. I replaced the limit switch L170-40 and still have the same problem. If your car AC is not blowing cold air or just simply not working then you might be dealing with one or more of the problems listed below.

When there is a refrigerant. It sounds like your old one is probably some type of thermal relay. First check electrical connections and make sure the fan is plugged in and if you have a volt meter that the connector is getting power when the car is on.

If your car is at running temperature and the AC fan is not coming on assuming it is not -20 degrees outside then there are likely one of a few causes. Since the fan is always running when it is set to on youre using more energy than when the fan is set to auto. If you have a dirty air filter you can also check it for leaks.

Then this video is for you. Shut off your AC and check the fan capacitor contactor and motor if the condenser fan isnt running when the compressor is on. Fan motor is bad.

Possible Causes of Ac Fan Motor Not Working Dirty air filter. AC Refrigerant is Leaking. Certified Mechanics Fix Your Car in Your Driveway.

Put the motor and fan back into the AC unit. If the condenser fan doesnt when the compressor is on then is due to one of the following reasons. AC not blowing or heater blower not working.

Everything goes as it should except when time for blower fan to come on. If the burner starts the plenum heats and the blower starts as it should then you have isolated the problem. Like many air conditioning issues you can do some troubleshooting yourself before calling in to schedule service.

I read somewhere the blower had a 4 min count down before turning on again. When heater AC fan only work on high it could also be your blower motor. There are several ways debris can get into your cars air conditioning system to.

If the system is on but set for heating instead of cooling. If the motor is hot there may be a problem with the capacitor or centrifugal switch. If your air conditioning fan isnt working your HVAC system wont cool your home.

An air conditioning fan motor is a fairly uncomplicated part but if it doesnt work then your home isnt going to be cool. This will show you how easily you can repai. Available 7 Days a Week.

Why is My Air Conditioner Fan Not Working. Users who are viewing this thread. There could also be a faulty compressor contractor or a lack of power.

Check that your AC is on and you can hear it running. The switch youre looking for should say something like HVAC furnace AC or compressor. If the switch is turned off try turning the switch back on and go inside and try the AC again.

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