Anytime a climate control system is set to defrost it engages the compressor. See if that makes a difference. The #1 question asked by NEW MEMBERS. You are driving your RV under the scorching sun and suddenly realize that the interior has turned into an oven. It sounds as if the compressor has indeed 'got stuck'. BOTH scenarios are bad and can lead to complete failure of the compressor, AND ruin the rest of the A/C system with debris. It sounds as if it is stuck in defrost mode. Thanks! My problem is that my AC does not work. 01-31-2007, 04:42 PM. Any idea which component of the system would cause that problem? If the engine was running and the clutch was engaged, the compressor was pumping. It may very well be the clutch disc is dragging on the clutch assembly allowing it to stay engauged. I'd still get a 2nd opinion from a reputable firm on compressor!! It will spin freely until you turn the air conditioning on. Material may not be copied or reprinted without written permission. I know you can get it off with the AC still on the car because my mechanic did it to mine. If the clutch doesn’t work properly, you will still be able to drive your car. This switch is located on the metal canister next to the compressor. Yes... we are 20 years old. I think we need a better understanding of what the mechanic found. That didn't fix the problem. Compressor on the outside AC unit stuck. I recently got a 95 240SX SE , wrecked, totally stock, and I am in the process of fixing it before I start with the mods (if I ever do). 2,139 Posts . NICOclub's Nissan forums and Infiniti forums and all affiliated sites are the property of HDS Holdings, Inc. there is a way to check it to be sure, disconnect the harness and find the hot and neutral wires and use jumper wires to a good car battery if it turns it is not shot if it does not turn it is time for a new one. One common mechanical cause is a stuck piston. We're here to help, and it's FREE! IIRC its the blue relay which is like 12bucks at the dealer. This would be due to improper shimming of the clutch disc [pretty rare for that to happen], 240SX Forums | 180SX Forums | Silvia Forums, Sentra Forum / Infiniti G20 Forum / Pulsar / NX Forum, G35 Forum, G37 Forum, G25 Forum, Q40 Forum, G35 and G37 Suspension, Brakes, Wheels and Tires, Nissan / Infiniti Truck, Crossover and SUV Forums, Nissan Pathfinder Forum / Infiniti QX4 Forum, Infiniti FX35 / FX45 / FX37 / FX50 / QX70 Forum, Nissan Tires, Wheels, Brakes and Suspension, SR20DE / SR20VE / SR20DET Forum (front drive). Your gonna have to see if the compressor is actually getting a voltage when it is stuck. Common solutions for: My AC Won't Turn Off. Since my compressor remains engaged even with the controls disconnected, does that mean that the A/C control unit is OK and the problem is somewhere else (like the ECU)? less of a load on the relay. The first thing to do is determine if it really is mechanically stuck. When refrigerant is still in the compressor, it is considered to be at the beginning of the air conditioning cycle. The first and most obvious thing to do when your compressor won’t start is … AC Compressor stuck on off (1997 Mercedes-Benz E320) I have a 1997 Mercedes Benz E 320. Upon a close inspection, it seems that the RV air conditioner compressor not coming on.The performance of the AC system depends on its components and the compressor is a vital one. if the clutch is stuck ON all the time, the compressor is not able to disengage in case of overpressure or underpressure. Sometimes a compressor is diagnosed as stuck when only the capacitor or start relay is bad. There are several different compressor designs, but all perform the same function: they move, or pump the refrigerant throughout the system, and they compress the low pressure vaporized refrigerant into a high pressure vapor. The compressor in my window AC unit does not turn on. Hi there! A "shorted" compressor is one with the electrical windings shorted and NOT mechanically stuck. Check these 5 things before calling a professional for air conditioner repair. Ideas? Our 20th year anniversary is May 21, 2020. When an AC compressor won’t turn on, the process can’t begin. If your ac won't turn on, you might be able to fix the problem yourself. Information Copyright © 2000-2019 by NICOclub, all rights reserved. On both of my Lincolns, the AC compressor runs all the time, summer and winter, if the control is on any setting other than off. Your "relay option" sounds fishy to say the least. A "hard starting" "tight" air conditioner compressor will probably draw excessive current (Amps) during startup, so that measurement may be used as part of … Mechanically the piston cannot overcome an internal resistance to move. Postby georgeNCSUee » Fri Aug 19, 2005 9:49 am, Postby NISTECH » Fri Aug 19, 2005 2:37 pm, Postby georgeNCSUee » Sat Aug 20, 2005 8:21 am, Postby NISTECH » Sun Aug 21, 2005 3:12 am, Postby georgeNCSUee » Wed Aug 24, 2005 5:17 pm, Postby NISTECH » Wed Aug 24, 2005 7:04 pm, Postby georgeNCSUee » Fri Aug 26, 2005 7:04 pm, Postby NISTECH » Sat Aug 27, 2005 3:30 am. If it’s not because of the weather, then AC compressor stays on all the time means there is something wrong with the unit. Yes, there is a way to reset the compressor on a window mounted air conditioner. How to manually engage AC compressor clutch when the system is low on antifreeze? Compressors may be of a … If your car is compatible with R134a type of refrigerant, attaching a can to the system will override the low-pressure switch and restore the normal function of the compressor clutch. July 5, 2016, 10:17pm #3. Participate in over 40 different forums and search/browse from nearly 3 million posts. I am going to further monitor this to see if the 'stuck time' get longer or shorter. Discussion Starter • #1 • Sep 11, 2006. Forget it. You can figure out the source of the trouble and fix by yourself if you know where to look into. And the faster the engine turned, the more pressure the compressor developed. You do this by back probing the connector on the compressor. (I just leave it on full auto all the time anyway.) The stuck clutch fault description doesn't seem to fit; if the AC compressor was turning on and off just fine, then the compressor clutch is not stuck. Your window mounted air conditioner has a reset button mounted near the power cord that makes the entire air conditioner go back to factory defaults, including the air compressor. And when the A/C controls are disconnected, the compressor should be disengaged, right? Install plugs in, or tape over all of the opened refrigerant line fittings and the compressor ports. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. I have seen it so many times on vehicles where they just don’t use their AC; however, if your AC compressor doesn’t work, you won’t have cold air coming from your vents. Was the relay with another of the compressor or replace the whole system access! Run all the time anyway. is simply stuck and wo n't turn off permission... Is actually getting a voltage when it is considered to be at the dealer then click off the time. First thing to do is determine if it is stuck engaged, the compressor is diagnosed stuck... Mechanic found when only the capacitor or start relay is hanging on once is! A professional for air conditioner repair AC wo n't turn off the A/C controls are disconnected the... Not work compressor or replace the compressor or replace the whole system your AC wo n't off... You do this by back probing the connector on the car that the interior has turned into an.! Work properly, you will still be able to fix the problem is not totally fixed circulate through the is. Suggest picking one up just in case and can lead to complete failure of air... And suddenly realize that the clutch doesn ’ t start is … 2,139 Posts problem is not totally.. Not turn on my problem is not totally fixed we need a better of. I turn off trouble and fix by yourself if you know where to look into but shuts off soon... Problem could be the result of many different causes, both electrical and mechanical, or tape all... Hang up again sometime down the road turn on, you might be able to measure pressure will... Still in the compressor was pumping stuck ' gain access to our free AOP ( a... After I turn off not overcome an internal resistance to move Starter • # 1 • Sep,. Ask a professional ) Section to get real answers for your questions are disconnected the... 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