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Ac electric problem compressor will not turn on

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  • yadayada
    yadayada Jul 09, 2010

    the compressor will not turn on if the system is low on charge, is it?

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Compressors in A/C systems wont turn on if theres not enough gas in the system.we use R134a gas

Posted on Jul 09, 2010

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Posted on Jan 02, 2017

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I have a 2002 pt cruiser that is blowing the ac 10amp fuse repeatedly. I mean within minutes of changing it. Also the ac is only blowing hot air. Can someone please help.


An AC system blowing hot air is usually due to a low freon charge or a non operational AC compressor. If the fuse blows, disconnect the compressor electrical plug and turn on the AC. If the fuse doesn't blow, suspect a compressor problem. If the fuse continues to blow with the compressor disconnected, there is a direct short between the ON/OFF switch and the compressor which can take hours to diagnose

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Does the a/c pulley turn when u turn on engine or when you turn on a/c?


the ac compressor has an electric clutch mounted on it , the outside of it the one the belt touches turns with the fan belt and everything else when ever the engine is running , the inside part the one that drives the shaft of the compressor moves only when it receives the electric signal from the dash switch for ac to run (there are a few other switches in the same pathway that could prevent it from receiving power too ) if your fan belt skids or squeals with engine running turn off your defrost/ac switch if it goes away then your ac compressor is most likely bad , if belt just continues to squeal then your belt and/or tensioner needs replaced

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Air conditioner blows hot but freon is full


Your compressor could be faulty. Check to see if it engages when you press the AC button with the car running.

Aug 05, 2014 | 2004 Ford Freestar

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I have a 2006 Mazda3. I noticed whenever my air conditioner or heat is on it makes a sound like a lawn mower when I acceralate. Any ideas of what this could be ?


Well, I think you can rule out the AC/heater fan inside the car. That would make noise even just sitting in the driveway.

Many/most vehicles are designed to run the AC compressor not only when the AC is on but also when the defroster is on. This is to keep the AC compressor lubricated through the winter months also.

It should not be a belt problem as that belt is always turning anyway which should then rule out the pulley bearing at the AC compressor.

I do suspect your problem is a major internal failure of the AC compressor. This can be easily checked by a technician [or yourself if qualified]. Locate the electrical connector at or to the AC compressor. Two people: With the AC turned on, in park, increase the engine speed so you can here the noise. Disconnect the AC compressor electrical connector. If the noise stops instantly, the compressor has failed. A quite expensive repair. Have a reputable shop locate a re-manufactured compressor for you. That will help some on the cost.
Bestaluckto you!!
M

May 09, 2014 | 2006 Mazda 3

1 Answer

Engine quits when ac turned on compressor unplugged


Knowing make model and year would help. Most newer vehicles, 2000 and newer, will adjust the idle control up to compensate for the compressor engaging. Possible there is an issue in the idle air control valve or electrical circuit.

Mar 14, 2017 | 2003 Ford Focus

1 Answer

Jump start compresser on 06chevy colorda


i buy spare AC COMPRESSOR. electrical connector at salvage yard or dealership connect long jumper wires to the AC COMPRESSOR electrical connector.i hot wire it. let dealership do the job they can use scanner energize AC compressor relay and pressure sensor to turn on AC COMPRESSOR clutch.hot wiring could chance shorting out something.

Jun 21, 2013 | Cars & Trucks

1 Answer

AC controls stopped working


The rear defrost is an electric switch for the defroster in the rear glass.
If you turn on the ac and do not get cold air, the first thing to check is if the compressor is running. If not, you could be low on freon or have an electrical problem in the circuit for the ac clutch.
If the compressor is running and one of the ac lines is ice cold, you could have a blend door problem under the dash.

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2002 mitsubishi lancer ac does not blow cold and will continue to


Sounds like either the a/c relay is bad or a/c compressor clutch is not disengaging. Look on the compressor for an electrical connector, and if you can, unplug it. That should stop the battery drain. I would suggest taking the car into a good a/c shop to have the compressor looked at. The clutch can be replaced without having to buy a new compressor.

Aug 15, 2009 | 2002 Mitsubishi Lancer

1 Answer

The air on my 1998 chevy suburban blows but it doesn't get cold. I put free-on in it. It only took a little. The compressor will turn manually & will not kick on. fuse ok. electricity in harness ok....


Probably the electric clutch of the compressor is not working. This is the part that uses the power generated from the drive belt to drive the compressor. Normally if this is working, you would hear a sound in the engine compartment once you turn on the ac. Otherwise you may have only the AC blower spinning. If they check out OK, the thermostat may not be working. Your AC will not engage because it may be getting the wrong signal thermostat.

Jun 15, 2009 | 1998 Chevrolet Suburban

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