Air Conditioning and Coolant
Ford Escort LX
Heating Ventilating and Air Conditioning

How can you check your home AC compressor which does not turn on but the fan is running?


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2005-10-26 11:34:28
2005-10-26 11:34:28

Check to see if the capacitor is good. It is usually located inside the outdoor unit. It could be that the capacitor is bad and needs replacing. The outdoor fan will still run if you have a dual capacitor. One sure sign of a blown capacitor is that the top of the capacitor is bowed outward. If you have a multimeter you could also check the amp draw on the condensing unit. I would look at the capacitor first though


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Can't do it. The lubricant is mixed in with the refrigerant. Converted to air it would be running dry.

When you turn on the AC, check to see if the compressor is running. If the compressor clutch is not engaging, it might be as simple as low refrigerant level. Automobile AC is not like a home AC. Since the compressor cannot be sealed, the seal always leaks a little and you need to occasionally add a little refrigerant.

Mabe your compressor is not kicking on for some reason. Check to see if the front of your compressor starts spinning when you turn it on. If it don't check to see if there is power to the wires that go to your compressor. If there is power you have a bad compressor. If there is not check the fuses or relays.

Check the Freon pressure first. The AC compressor will not turn on if the Freon pressure is too low.

Could be your ac compressor is going or gone, probably gone.

You have a cycling clutch compressor. Turn the AC on max, let the car for five minutes or so, go look at the compressor. You should see the clutch engaging and disengaging the compressor as the pressure builds and drops.

No fan-electrical Fan/no cold-check refrigerant. Refrigerant ok, check compressor.

Running the AC compressor uses horsepower, and the truck does not have enough to overcome the loss.

There are several things that can cause your air conditioning compressor to turn off after five seconds. The most common cause is a lack of Freon pressure. Check your air conditioning hoses for a leak.

If you want it constantly running jumper the high pressure cut off switch wire. And if you dont want it running turn off the ac. If pully is seized see if a napa can get a shorter belt to route around the ac compressor

If the clutch on the AC compressor has seized, the engine can in some situations stop running. The compressor could be bad but it is also possible that the clutch only is bad.

the asiest way to see if it is working is to start the car, turn on the a/c, watch your compressor. you should hear a click than the center of the compressor pully will start rotating, if that doesnt happen you could be low in gas in your system, you can always fill it just to check

What year is the vehicle? Did you check the fuse?

A stuck compressor contactor. Do not turn off the indoor fan until you have either shut off the breaker or pulled the fuses to the outdoor unit and stopped the compressor, or damage may result.

YES. The A/C will cycle on and off when the heater is on defrost. That stops the A/C compressor from locking up during the winter months.

Turn it off until you can have it looked at, the contactor is probably welded shut and you can kill the compressor running it this way.

The most likely reason the compressor is not coming on is because you are low on freon. The low pressure switch will keep the compressor from cycling on because damage to your compressor would result. You can jumper across the low presure switch with the engine running and A/C turned on, ( for short time only) this will provide you with question is my compressor clutch good, or am I just low on freon. The AC compressor relay switch may need to be replaced

It is best to leave running. Have a neighbor check for anything unusual.

Things to check first: Turn on the A/C control - open the hood and look at the compressor and observe whether or not the clutch is engaging (clicking on and off). If it isn't then check the fuse/electric relay that control the compressor. If the compressor operates but cycles rapidly (clicks on and off), that could be a sign of low refrigerant, have it checked. If these easy do-it-yourself checks are inconclusive then you need a mechanic.

Only when you need it. Running the ac compressor when you don't need the cold air is a waste of freon and wear and tear on the system.

check to see if your rad. fans come on when you turn on your a/c the compressor will not work if the do not come on

You need to check the firewall service, it must be running.

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