Compressor starts but goes off immediately - American Standard WCZ036F Air Conditioner

A compressor motor protection device is cutting it out. High / low pressure, oil pressure, overload.

Sounds like the compressor is seized up and the smell is from the clutch slipping when it tries to engage. If that is the case, you need a new compressor at a minimum.

Its supposed to do that.
If the system is full of freon, the compressor should start up above 30psi and stay running.
Have you added any freon yet ? What is the high side pressure ?

sounds like a locked rotor, did the compressor get hot? did you check max amps on the compressor when it attempted to start?compressors have thermal protection built into their windings, a switch that will open to protect the compressor, and if the rotor is locked, normally you have to replace it, you could try putting what is called a start assist capacitor on it (AKA hard start kit) I would recommend the two wire model, easy to install.
You will need to wait for the thermal overload to reset, turn power off to unit till you get the kit on there.

Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Hi,

As the weather is getting warmer for many people their freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong. If you are hearing a clicking or buzzing then check out the last two tips.

If your refrigerator is running but warm, then…

Check out this tip that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay


heatman101

bad start relay located in the back of the machine on the compressor you will see some wires that hook to a plastic piece that goes into the side of your compressor replace this and your problem should be all set you can order the relay directly from marcone appliance parts and they will deliver it directly to your door hope this helps

Locked compressor, try a hard start kit to see if it can
break it free, if that does not work use a hammer.

The first thing to check is your breaker box. There should be one double breaker for the air handler unit, that's the inside unit, and one double breaker for the compressor, that's the outside unit. Check both breakers. If you're not sure if they've be thrown, click them toward the outside of the breaker box (off position) and then click them toward the inside of the breaker box (on position). If the breakers are on and you still are not getting any A/C take a look at your compressor, (outside unit). If the fan is running at least you're getting power. However, your compressor down inside the unit may not be getting power or it may need to be replaced. The compressor has a start-up cap. If this cap goes bad or the wires from this cap fry or corrode away, this will also keep the compressor from starting but the fan will still run. If the fan is not running it could be caused by a faulty relay inside the compressor cabinet. This relay is supposed to open and close based on a low voltage signal from the thermostat. I believe it's roughly 24 volts. This relay switches on and off the 240 volts for the compressor and the compressor fan. Often this relay goes bad or the wires leading up to it fry. If you?re going to work on the unit yourself make sure all power is shut off. There should be a shutoff switch on the outside wall near the compressor. I?d also shut the breakers off.

How quickly does it shut off? Is it reaching the turn off psi? or is it immediate.
If it is immediate then it is probably a power supply issue.
Air compressors are power hogs. For instance, a compressor may work fine on an outlet using the supplied power cord, but plug it into an extension cord that is insufficient for it and a repeat of your problem will occur. If you use an extension cord make sure it is made just for this kind of application. Also, if possible, give the compressor a dedicated circuit.
Another problem might be your unloader valve not working correctly. This reliefs the pressure inside the pump after the motor has stopped. it would sound like the pump is working extra hard at start-up.

Relay for the compressor may be stuck ( Contacts welded) both the fan and the compressor should operate at the same time. Have the relay(s) checked and possibly replaced.