Air-con in your automotive is usually a lifesaver throughout these scorching summer season months. However what do you do when your AC is not working correctly? Probably the most frequent issues with automotive AC methods is a defective compressor. The compressor is the guts of the system, and if it is not working correctly, your complete system will probably be affected. On this article, we are going to present step-by-step directions on how you can check an AC compressor.
Earlier than you start testing the AC compressor, it is very important take some security precautions. First, guarantee that the automotive is parked in a well-ventilated space. Second, disconnect the adverse terminal of the battery. This may forestall any electrical shocks from occurring. Third, permit the engine to chill down utterly earlier than starting any work.
After you have taken the required security precautions, you possibly can start testing the AC compressor. Step one is to find the compressor. The compressor is normally situated on the entrance of the engine. After you have situated the compressor, you will want to establish the 2 terminals on the compressor. One terminal will probably be labeled “C” for compressor, and the opposite terminal will probably be labeled “G” for floor. Subsequent, you will want to attach a multimeter to the terminals on the compressor. The multimeter must be set to the DC voltage setting. After you have related the multimeter, you will want to begin the automotive and activate the AC. The multimeter ought to learn between 12 and 15 volts. If the multimeter doesn’t learn between 12 and 15 volts, then the compressor will not be receiving energy.
Capacitor Discharge and Insulation Testing
Any voltage that is still saved in a capacitor could be very harmful, so it is essential to discharge it earlier than dealing with the element. You are able to do this by shorting the capacitor’s terminals along with a screwdriver or different metallic object. After discharging the capacitor, you also needs to check its insulation resistance to make sure that there aren’t any shorts or leaks. This may be finished with a multimeter set to the ohms vary. The resistance must be very excessive, within the megaohms or gigohms vary. If the resistance is low, it signifies that the capacitor is shorted or leaking and must be changed.
To carry out a capacitor discharge and insulation check, observe these steps:
1. Discharge the capacitor by shorting its terminals along with a screwdriver or different metallic object.
2. Set your multimeter to the ohms vary.
3. Join the optimistic lead of the multimeter to at least one terminal of the capacitor and the adverse result in the opposite terminal.
4. The resistance must be very excessive, within the megaohms or gigohms vary.
5. If the resistance is low, it signifies that the capacitor is shorted or leaking and must be changed.
| Symptom | Doable Trigger | Resolution |
|---|---|---|
| Compressor not working | Capacitor is discharged or defective | Discharge the capacitor and check its insulation resistance. Exchange the capacitor if vital. |
| Compressor working however not cooling | Capacitor is weak or leaking | Take a look at the capacitor’s insulation resistance. Exchange the capacitor if vital. |
| Compressor working however making noise | Capacitor is shorted | Exchange the capacitor. |
Find out how to Take a look at a C Compressor
Testing a C compressor is an easy course of that may be finished with a number of fundamental instruments. By following these steps, you possibly can simply decide in case your compressor is working correctly.
- Verify the ability provide. Be certain that the compressor is plugged into an influence outlet and that the ability is turned on.
- Begin the compressor. Press the beginning button on the compressor. The compressor ought to begin up and run for a couple of minutes.
- Verify the air stress. Use a tire stress gauge to examine the air stress within the compressor tank. The stress must be between 100 and 120 psi.
- Pay attention for leaks. Pay attention for any leaks within the compressor or hose. In the event you hear any leaks, tighten the fittings or substitute the hose.
- Cease the compressor. Press the cease button on the compressor. The compressor ought to cease working.
In case you have adopted all of those steps and the compressor will not be working correctly, it’s possible you’ll must contact a certified technician.
Individuals Additionally Ask
How do I do know if my C compressor is working?
You may examine in case your C compressor is working by following the steps outlined within the article above. If the compressor will not be working correctly, it’s possible you’ll must contact a certified technician.
What are the indicators of a nasty C compressor?
Some indicators of a nasty C compressor embody:
- The compressor doesn’t begin up.
- The compressor doesn’t run for lengthy.
- The compressor doesn’t produce sufficient air stress.
- The compressor makes a loud noise.
- The compressor leaks air.
How do I troubleshoot a C compressor?
If you’re having issues along with your C compressor, you possibly can observe these steps to troubleshoot the issue:
- Verify the ability provide.
- Verify the air filter.
- Verify the oil degree.
- Verify for leaks.
- Contact a certified technician.
