I just replaced compressor orifice tube and accumulaor and cleaned system due to compressor lock up. charged system as per a/c label under hood and compressor won't run. Is there a fuse somewhere that could be blown or a bad pressure switch
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It sounds like you've done just about everything except to check if there is a bad or intermittent wire causing this or perhaps your low-pressure safety cutout switch is possible going bad causing the compressor to kick on and off?
I hope as well that the compressor is not bad just for reasons you'r most likely aware of, the COST. The main thing you might want to do is check to see if power is running to the compressor directly with a multimeter. If there is power then most likely you will need to replace the compressor. The main thing that may happen like you mentioned above is that the compressor is self locked up. One way you can tell is if is you serpentine belt will turn the pulley when you start the engine. Take a look at the pulley when the engine is on. If you hear an unusual noise or see smoke then it will most likely lock up soon. When that does happen is will most likely throw you'r belt of the pulley after it locks up. The reason for the compressor being so expensive to repair is for a couple reasons. The system is pressurized and requires special tools when removing it to store the freon. Also when you replace the compressor it is always wise to replace the orifice tube, accumulator and hoses as well just to lower the risk of it going out again.
YOU COULD HAVE FAULTY CLUTCH CYCLING PRESSURE SWITCH. YOU COULD HAVE A LOT OF MOISTURE IN THE AC SYSTEM.CHECK EVAPORATOR LINE GOING IN THE FIREWALL TO EVAPORATOR IF YOU SEE ICE ON EVAPORATOR LINE TO FIREWALL.YOU HAVE A RESTRICTION IN ORIFICE TUBE IN EVAPORATOR OR LOT OF MOISTURE FREEZING UP IN THE SYSTEM.
I assume you mean the compressor is locked up. Then yes, it is shot. If you want it fixed, take it to a repair shop. When the compressor is replaced, the dryer and the orifice tube must be replaced and the system flushed and evacuated. If all this isn't done, it will void the warranty on the compressor.
Check the connections on the plug going to the compressor clutch and on the pressure switch on the low side. Also check the gap on the clutch. It may be too wide after where to engage correctly. Good luck.
if old compressor fail your air condition has to be discharge at dealership or a garage that does ac repair.then the ac lines has to be flushed out before putting on new one. because old one when it fails clutch lock up or compressor fail.small metal particles get in line.stop up orifice tube.you will have to replace orifice tube the accumalator .you will need vacuum pump to pump down air conditioner .to get moisture out of system.you will need a manifold gauge set for air conditioner.ac tools are expensive.it would be cheaper to buy compressor - accumulator - orifice tube. take it to a good air conditioner mechanics.let him put parts on and pump down system.then charge it up.because buying tools to get ac going .is going to cost $475.00 thats the vacuum pump price.you can buy a cheaper vacuum pump that works from air from a regular air compressor you pump tires up with.manifold gauge set causes from $100.00 up to $300.00 for a good set.another thing you have to be familiar with working on air conditioners you put too much R-134 in system you will damage compressor or get seriously hurt.
The most common problem I've seen with these cars it the a/c "manifold hose', rubs out on the fan and causes a leak. It's wont be a bunch of money. If you have any know how, you would be able to replace the hose and take it somewhere to charge the system. That would save some money, not having to pay labor.