the simplest way is to undo screws holding contactor in place then change wire for wire approx cost $40 you will neeed to turn of power at the furnace and at the outdoor unit as there is both high and low voltage at the contactor
This is a good question because the contactor and capacitor are some commonly ruined yet easily replaced components. It would be helpful if someone explained in laman's terms how to remove the possibility of being electrocuted while replacing a contactor and capacitor. I know one way is to attach something called a "resistor" to some part of the capacitor, but I'm not sure about the specifics. There is probably a way to discharge the voltage with a household item, but I'm not aware of it.
The coil can be operated by taking one leg of the 240 volts from the top of the contactor and connecting it to one terminal of the coil. Take the other leg of the 240 volts from the top of the contactor and connect it to the device used to turn the contactor off and on. From this switching device take the switched wire and connect it to the other terminal on the contactor's coil. Now when the switching device is activated the contactor will open and close.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
MECHANICAL EXPOSURE IS TO DEVELOPED YOURSELF BY GETTTING AN IDEAL EXPERIENCES AND PRACTICE IN SEVERAL MECHANICAL EQUIPMENT PARTICULARLY IN MAINTENANCE AS WELL AS IN OPERATION.
Answer for USA, Canada and countries running a 60 Hz supply service.This is for a single phase air compressor whose magnetic contactor's coil voltage is the same as the supply line voltage. Take a wire from one of the line terminals L1 to one side of the contactor coil. Take another wire from the second line terminal L2 and put it to one side of a N.C. contact on the magnetic contactor's overload block. From the other side of the N.C. contact on the O/L block take a wire to the N.C. terminal on the pressure switch. From the other side of the N.C. contact on the pressure switch terminal connect the wire to the other side of the magnetic contactor's coil.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
You should get a factory service manual to familiarize yourself with the procedure. The rear shocks are fairly easy to change for anyone with general mechanical aptitude and the proper tools. The front shocks should be changed by a good front end shop that has a spring compressor.
If you are going to do it yourself - about $600
You start with a normal one way circuit consisting of a three phase contactor and an three phase overload in series for the forward circuit. Then you add the reverse contactor in parallel with the forward contactor but with line one and line two crossed over i.e. when the reverse contactor is made, line one of the supply will be connected to line two of the motor and line two of the supply to line one of the motor. The control circuit must also be interlocked to prevent forward and reverse being energized at the same time.
any number of mechanical or electrical issues a better resource for your car would be a local mechanic if you have little mechanical skills or tools yourself.
To use an air compressor effectively and safely, first read the manufacturer's instructions carefully. Make sure the compressor is on a stable surface and properly grounded. Wear safety goggles and ear protection. Check the air pressure and adjust as needed. Connect the hose securely and turn on the compressor. Use the appropriate attachments and never point the air stream at yourself or others. When finished, turn off the compressor and release any remaining pressure before disconnecting the hose. Store the compressor in a dry, well-ventilated area.
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.
with out mechanical engineering the world is a big zero. no products in the world is created artificially with out the application of mechanical engg. that's y i have studied mech engg.
It could be several reasons. First, the freon level may be low. I would have the freon pressure checked first, or you can do yourself. Second, you could have a bad compressor sensor. Third, the compressor itself could be bad or you could have bad expansion valve. All could cause short cycling.
2.54 I tested it myself. I'm a chemist. I know this sort of stuff. Believe me. And believe in yourself.