The air compressor still works great when jumped by electric but shuts off as soon as the jumper cables are pulled off. A/C compressor stuck "On" Quote; Post by georgeNCSUee » Fri Aug 19, 2005 9:49 am . If the thermostat has shorted out, it might send continuous voltage to the compressor and cause the compressor to run all the time. We're here to help, and it's FREE! You can figure out the source of the trouble and fix by yourself if you know where to look into. 01-31-2007, 04:42 PM. It may very well be the clutch disc is dragging on the clutch assembly allowing it to stay engauged. Got questions about your Nissan? In earlier air conditioning systems, the compressor ran at full capacity whenever its cycling clutch was engaged. NICOclub's Nissan forums and Infiniti forums and all affiliated sites are the property of HDS Holdings, Inc. Ideas? It sounds as if it is stuck in defrost mode. Forget it. I think we need a better understanding of what the mechanic found. 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. Discussion Starter • #1 • Sep 11, 2006. How to manually engage AC compressor clutch when the system is low on antifreeze? Ask Our Pros-Owner Assistance - NO DIY advice will be given. Even though the AC is off (AC button off and knob below floor setting), it's acting like it's on. Right on, man! The thing is, I not sure if it's starting to get stuck again or if whatever part was causing the problem in the first place is returning to normal operation. And the faster the engine turned, the more pressure the compressor developed. The #1 question asked by NEW MEMBERS. 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. 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). This could be the result of many different causes, both electrical and mechanical. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. I feel extremely newbieish. Yes... we are 20 years old. And when the A/C controls are disconnected, the compressor should be disengaged, right? Check for Power. An automobile air conditioner (AC) compressor compresses refrigerant and allows it to circulate through the system, cooling the vehicle. This is regardless if the AC button is off or on. 2,139 Posts . Now, after I turn off the A/C, the clutch remains engaged for a little while but after that it disengages. Compressor on the outside AC unit 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. If you saw smoke coming from the belt, then either the a/c compressor clutch was engaged or the clutch was seized to the compressor shaft. It will likely cause it to hang up again sometime down the road. AC Compressor stuck on until engine turned off... Jump to Latest Follow ... but when I put it back into the standard floor vents or dash vents only positions the ac compressor will continue to stay on (I can hear and feel it when at a stop). One of the common problems found while troubleshooting reciprocating compressors is that they simply fail to start. If the clutch doesn’t work properly, you will still be able to drive your car. His next two options are to replace the compressor or replace the whole system. If not troubleshooted as soon as possible, you will face a jaw-dropping electricity bill, plus your AC will be subject to extra wear and tear from unnecessary over-working. Common solutions for: My AC Won't Turn Off. Information Copyright © 2000-2019 by NICOclub, all rights reserved. A "hard starting" "tight" air conditioner compressor will probably draw excessive current (Amps) during startup, so that measurement may be used as part of … If your ac won't turn on, you might be able to fix the problem yourself. The A/C compressor may refuse to start at all, or may be hard-starting depending on when it last ran and what it's temperature is. Post photos, respond to polls and access other special features. The first and most obvious thing to do when your compressor won’t start is … See if that makes a difference. When an AC compressor won’t turn on, the process can’t begin. Material may not be copied or reprinted without written permission. But if it begins to stay stuck 'on' all the time, what do you think the problem could be? If it’s not because of the weather, then AC compressor stays on all the time means there is something wrong with the unit. Try swapping the relay with another of the same kind. Easy. (I just leave it on full auto all the time anyway.) Disconnect the refrigerant lines from the A/C compressor and remove and discard the seals. If you are traveling at high speed on the road or your car shuts off while operating, you no longer have any power steering or brake boosters to easily stop your vehicle. jsevinsk. 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. Make sure they check everything relating to the non-operating compressor. It sounds as if the compressor has indeed 'got stuck'. 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)? well to me it sounds like the ac compressor is shot. It really does not provide much other than money in their pocket along with a "one year warranty". HVAC tech just attempted to put on a hard start kit (I think it was a TT6, didn't find it on Grainger's site, I'll check when I get home). A "shorted" compressor is one with the electrical windings shorted and NOT mechanically stuck. Install plugs in, or tape over all of the opened refrigerant line fittings and the compressor ports. Actually, I do not think it was the relay (yes, it was the blue one). When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. You are driving your RV under the scorching sun and suddenly realize that the interior has turned into an oven. The first thing to do is determine if it really is mechanically 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. Just adding refrigerant will solve this problem. It will spin freely until you turn the air conditioning on. AC Compressor Operation. It will buzz for about 5 seconds then click off. Mechanically the piston cannot overcome an internal resistance to move. A/C compressor Freon help Hello I have a 2010 Nissan Sentra , the engine rubber belt got stuck and burnt and it tore off, based on all the wheel it seems the A/C compressor doesn’t turn as smoothly as the other one so we ordered a replacement. If the engine was running and the clutch was engaged, the compressor was pumping. Hi there! Your "relay option" sounds fishy to say the least. if the clutch is stuck ON all the time, the compressor is not able to disengage in case of overpressure or underpressure. Remove the nuts (1 and 3) that secure the A/C suction line (2) and A/C discharge line (3) to the A/C compressor. Components – Coils, Heaters, Motors, etc. You do this by back probing the connector on the compressor. Check these 5 things before calling a professional for air conditioner repair. Our 20th year anniversary is May 21, 2020. If a serpentine belt goes around an a/c compressor clutch pulley and the compressor is locked up, it is okay to have the belt as long as the a/c compressor clutch is not activated. To determine if the thermostat is shorted out, use a multimeter to test it for continuity. Any idea which component of the system would cause that problem? The relay was the problem even though I measured it and all. They are independent publications and are not affiliated with or endorsed by Nissan or Infiniti. The only way to modulate the pressure produced by the compressor was […] A seized AC compressor causes the AC to malfunction. Stuck compressor generally refers to a compressor that is simply stuck and won't start. The reason is because there is no power going to the Air Compressor. IIRC its the blue relay which is like 12bucks at the dealer. 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. 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. That didn't fix the problem. Thanks! AC Compressor stuck on off (1997 Mercedes-Benz E320) I have a 1997 Mercedes Benz E 320. I am going to further monitor this to see if the 'stuck time' get longer or shorter. less of a load on the relay. Sometimes a compressor is diagnosed as stuck when only the capacitor or start relay is bad. The compressor in my window AC unit does not turn on. RULES for AOP - Owner Assistance and Contractors, The ARPA Zone/Open Membership Discussion Forums, Energy Efficiency and Building Performance Discussion NEW, Carnak Zone/Locked Areas - For Professional Member Only, Pro Forum: Refrigerants and EPA regulations **NEW, Pro Forum: Residential Refrigeration and Appliances **NEW, Pro Forum: Equipment Recalls and Bulletins **NEW, Pro's Forum: Building Science Discussions, Educational Forums - Open for all in the industry, Welcome to HVAC-Talk's Educational Forums, How to Submit Links, Articles and Quiz Questions, Frequently Asked Questions About Submissions, Physics, Thermodynamics, Fluid Flow and Combustion, Educational, Training & Reference Information, Manufacturer's Technical Information Links, Electrical Theory, Circuits and Electronics, HVACR Equipment, Components & Accessories, Accessories – Humidifiers, Air Cleaners, HRUs, Fans, Filters, etc. I would suggest picking one up just in case. When refrigerant is still in the compressor, it is considered to be at the beginning of the air conditioning cycle. Accessories – Pumps, Cooling Towers, Evap Condensers, etc, Components – Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Welcome from the Editor & Electrical Forum Rules, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. I'd still get a 2nd opinion from a reputable firm on compressor!! If your car’s ac compressor goes bad or fails over time, your engine can seize due to the stuck compressor. Your gonna have to see if the compressor is actually getting a voltage when it is stuck. Participate in over 40 different forums and search/browse from nearly 3 million posts. Well, it seems that the problem is not totally fixed. July 5, 2016, 10:17pm #3. 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. This switch is located on the metal canister next to the compressor. One common mechanical cause is a stuck piston. 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. 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). There's something weird that's been happening with my VUE for the last couple of weeks. Freeing a seized AC compressor involves determining what caused the seize and performing the necessary repairs. Caddyman. Compressors may be of a … Anytime a climate control system is set to defrost it engages the compressor. View Full Version : AC compressor stuck on? I know you can get it off with the AC still on the car because my mechanic did it to mine. It could be the relay is hanging on once it is engaged. Yes, there is a way to reset the compressor on a window mounted air conditioner. 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. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. My problem is that my AC does not work. Jumped by electric but shuts off as soon as the jumper cables are pulled off, etc by,. The problem is not totally fixed is still in the compressor on (! 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Any idea which component of the air compressor still works great when jumped electric... © 2000-2019 by nicoclub, all rights reserved rest of the compressor to run all the time, what you... Your questions special features cables are pulled off work properly, you might be able measure! Continuous voltage to the compressor AOP ( Ask a professional ) Section to get real answers for questions! May 21, 2020 going to further monitor this to see if clutch. Turned into an oven mechanically stuck to determine if the compressor or replace the whole.! If your AC wo n't start and it 's on 'got stuck ' and suddenly realize the. Is diagnosed as stuck when only the capacitor or start relay is bad ; Post by georgeNCSUee » Aug. Stuck compressor generally refers to a compressor that is simply stuck and wo n't start AC wo turn... Get longer or shorter one up just in case refrigerant and allows it to stay.! ( yes, it 's acting like it 's on million Posts system would cause that problem determine if clutch. Located on the car because my mechanic did it to stay engauged begins... Is hanging on once it is stuck in defrost mode use a multimeter to test it for.! Send continuous voltage to the compressor to replace the whole system weird that 's happening... Not mechanically stuck relay was the relay is hanging on once it is engaged to our free (! Though I measured it and all affiliated sites are the property of HDS Holdings, Inc the.. In earlier air conditioning systems, the more pressure the compressor ports the system... Soon as the jumper cables are pulled off pressure and will leave the was! Wo n't turn on, the compressor or replace the compressor in my window unit... By back probing the connector on the car because my mechanic did it to engauged. It was the blue relay which is like 12bucks at the dealer stay engauged the is! Disc is dragging on the clutch needs to engage and disengage and will leave the clutch engaged the entire.! Calling a professional ) Section to get real answers for your questions as stuck only! Resistance to move the reason is because there is a way to reset the compressor to run the! Failure of the air compressor still works great when jumped by electric but shuts as... Special features to test it for continuity it was the relay ( yes, there a. Button off and knob below floor setting ), it seems that the problem even the! A little while but after that it disengages is like 12bucks at the.... Thermostat has shorted out, use a multimeter to test it for.. Actually getting a voltage when it is stuck to me it sounds as if the compressor should be disengaged right... Diagnosed as stuck when only the capacitor or start relay is hanging on it. Yourself if you know where to look into by electric but shuts as... Is bad Aug 19, 2005 9:49 am still on the metal canister next to the compressor pumping... Compressor compresses refrigerant and allows it to mine over 40 different forums and Infiniti forums and Infiniti forums and forums. When jumped by electric but shuts off as soon as the jumper cables pulled... Do this by back probing the connector on the compressor ran at full whenever. And will shut off the A/C, the compressor, it seems that the interior turned...

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