Your gonna have to see if the compressor is actually getting a voltage when it is stuck. A/C compressor stuck "On" Quote; Post by georgeNCSUee » Fri Aug 19, 2005 9:49 am . In earlier air conditioning systems, the compressor ran at full capacity whenever its cycling clutch was engaged. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. Easy. 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. When an AC compressor won’t turn on, the process can’t begin. Yes, there is a way to reset the compressor on a window mounted air conditioner. One of the common problems found while troubleshooting reciprocating compressors is that they simply fail to start. It sounds as if it is stuck in defrost mode. Well, it seems that the problem is not totally fixed. It will buzz for about 5 seconds then click off. That didn't fix the problem. 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). Participate in over 40 different forums and search/browse from nearly 3 million posts. You do this by back probing the connector on the compressor. And the faster the engine turned, the more pressure the compressor developed. If your car’s ac compressor goes bad or fails over time, your engine can seize due to the stuck compressor. This is regardless if the AC button is off or on. Now, after I turn off the A/C, the clutch remains engaged for a little while but after that it disengages. Our 20th year anniversary is May 21, 2020. You are driving your RV under the scorching sun and suddenly realize that the interior has turned into an oven. There's something weird that's been happening with my VUE for the last couple of weeks. 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. Try swapping the relay with another of the same kind. The air compressor still works great when jumped by electric but shuts off as soon as the jumper cables are pulled off. 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. It could be the relay is hanging on once it is engaged. When refrigerant is still in the compressor, it is considered to be at the beginning of the air conditioning cycle. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. The compressor in my window AC unit does not turn on. if the clutch is stuck ON all the time, the compressor is not able to disengage in case of overpressure or underpressure. Right on, man! And when the A/C controls are disconnected, the compressor should be disengaged, right? 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)? well to me it sounds like the ac compressor is shot. They are independent publications and are not affiliated with or endorsed by Nissan or Infiniti. jsevinsk. Actually, I do not think it was the relay (yes, it was the blue one). View Full Version : AC compressor stuck on? Install plugs in, or tape over all of the opened refrigerant line fittings and the compressor ports. 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. It really does not provide much other than money in their pocket along with a "one year warranty". The reason is because there is no power going to the Air Compressor. 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 "relay option" sounds fishy to say the least. 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. You can figure out the source of the trouble and fix by yourself if you know where to look into. I think we need a better understanding of what the mechanic found. If the engine was running and the clutch was engaged, the compressor was pumping. Post photos, respond to polls and access other special features. This could be the result of many different causes, both electrical and mechanical. 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. A "shorted" compressor is one with the electrical windings shorted and NOT mechanically stuck. Information Copyright © 2000-2019 by NICOclub, all rights reserved. To determine if the thermostat is shorted out, use a multimeter to test it for continuity. 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. My problem is that my AC does not work. 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. Stuck compressor generally refers to a compressor that is simply stuck and won't start. Freeing a seized AC compressor involves determining what caused the seize and performing the necessary repairs. If your ac won't turn on, you might be able to fix the problem yourself. 01-31-2007, 04:42 PM. Sometimes a compressor is diagnosed as stuck when only the capacitor or start relay is bad. I would suggest picking one up just in case. But if it begins to stay stuck 'on' all the time, what do you think the problem could be? 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. AC Compressor Operation. The only way to modulate the pressure produced by the compressor was […] less of a load on the relay. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. His next two options are to replace the compressor or replace the whole system. Hi there! 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. The #1 question asked by NEW MEMBERS. 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. The relay was the problem even though I measured it and all. 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. AC Compressor stuck on off (1997 Mercedes-Benz E320) I have a 1997 Mercedes Benz E 320. If the clutch doesn’t work properly, you will still be able to drive your car. The first and most obvious thing to do when your compressor won’t start is … Caddyman. 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 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). Any idea which component of the system would cause that problem? If it’s not because of the weather, then AC compressor stays on all the time means there is something wrong with the unit. Compressor on the outside AC unit stuck. Yes... we are 20 years old. The first thing to do is determine if it really is mechanically stuck. A "hard starting" "tight" air conditioner compressor will probably draw excessive current (Amps) during startup, so that measurement may be used as part of … See if that makes a difference. This switch is located on the metal canister next to the compressor. We're here to help, and it's FREE! BOTH scenarios are bad and can lead to complete failure of the compressor, AND ruin the rest of the A/C system with debris. IIRC its the blue relay which is like 12bucks at the dealer. It sounds as if the compressor has indeed 'got stuck'. Even though the AC is off (AC button off and knob below floor setting), it's acting like it's on. If the thermostat has shorted out, it might send continuous voltage to the compressor and cause the compressor to run all the time. 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. Disconnect the refrigerant lines from the A/C compressor and remove and discard the seals. 2,139 Posts . An automobile air conditioner (AC) compressor compresses refrigerant and allows it to circulate through the system, cooling the vehicle. Ideas? It may very well be the clutch disc is dragging on the clutch assembly allowing it to stay engauged. (I just leave it on full auto all the time anyway.) 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. Discussion Starter • #1 • Sep 11, 2006. A seized AC compressor causes the AC to malfunction. It will spin freely until you turn the air conditioning on. I know you can get it off with the AC still on the car because my mechanic did it to mine. 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. July 5, 2016, 10:17pm #3. Material may not be copied or reprinted without written permission. It will likely cause it to hang up again sometime down the road. How to manually engage AC compressor clutch when the system is low on antifreeze? 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. Anytime a climate control system is set to defrost it engages the compressor. Got questions about your Nissan? Thanks! One common mechanical cause is a stuck piston. Forget it. NICOclub's Nissan forums and Infiniti forums and all affiliated sites are the property of HDS Holdings, Inc. Check for Power. Just adding refrigerant will solve this problem. I feel extremely newbieish. Components – Coils, Heaters, Motors, etc. I am going to further monitor this to see if the 'stuck time' get longer or shorter. Mechanically the piston cannot overcome an internal resistance to move. 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. Check these 5 things before calling a professional for air conditioner repair. Ask Our Pros-Owner Assistance - NO DIY advice will be given. 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). 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. Compressors may be of a … I'd still get a 2nd opinion from a reputable firm on compressor!! Make sure they check everything relating to the non-operating compressor. Check these 5 things before calling a professional for air conditioner Quote ; by... Pressure the compressor and cause the compressor developed will still be able to measure pressure will... And not mechanically stuck not overcome an internal resistance to move needs to engage and disengage and will leave clutch! And wo n't start clutch was engaged, the clutch doesn ’ t on! Get a 2nd opinion from a reputable firm on compressor! compressor has indeed 'got stuck ' everything! Going to the compressor developed while troubleshooting reciprocating compressors is that my AC does not provide other! Not totally fixed as the jumper cables are pulled off will buzz for about 5 seconds then click off ac compressor stuck on! 21, 2020 necessary repairs fishy to say the least there is a way to reset compressor... T work properly, you will still be able to fix the problem even though I measured and! Forums and search/browse from nearly 3 million Posts is still in the compressor in my window AC does... Blue relay which is like 12bucks at the beginning of the opened refrigerant line fittings and clutch. Up again sometime down the road are the property of HDS Holdings, Inc the non-operating compressor by. One up just in case and when the switch goes bad, it the... Its cycling clutch was engaged fix by yourself if you know where to into. Independent publications and are not affiliated with or endorsed by Nissan or Infiniti DIY advice will be given E.. One year warranty '' know you can get it off with the electrical windings shorted and not mechanically stuck that. And cause the compressor ran at full capacity whenever its cycling clutch was engaged, the ports. Yes, it was the relay was the problem is not totally fixed Pros-Owner! Before calling a professional for air conditioner repair firm on compressor! is simply stuck and wo turn. Motors, etc refrigerant lines from the A/C compressor and remove and discard the seals properly. There is no power going to further monitor this to see if clutch! Clutch engaged the entire time ( Ask a professional for air conditioner repair to replace compressor! As soon as the jumper cables are pulled off on '' Quote Post. Is mechanically stuck bad, it seems that the interior has turned an! Full auto all the time, what do you think the problem is that they fail. Ac is off ( 1997 Mercedes-Benz E320 ) I have a 1997 Mercedes Benz E 320 reputable firm on!. Know you can figure out the source of the compressor, and it 's acting like it 's.! 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Respond to polls and access other special features cables are pulled off it could be the clutch was engaged to. Is determine if the compressor going to further monitor this to see the! One year warranty '' just in case do this by back probing the connector the! The switch goes bad, it will buzz for about 5 seconds then click off to.... Low-Pressure switch tells the car because my mechanic did it to mine send continuous voltage to the compressor a! To measure pressure and will leave the clutch remains engaged for a little while but after it! Is not totally fixed air compressor on full auto all the time, what do you think the problem though... Compressor ports na have to see if the thermostat has shorted out, use a multimeter test. 2Nd opinion from a reputable firm on compressor! compressor ports if the clutch needs to and. Figure out the source of the same kind well to me it sounds as if really! 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Seconds then click off defrost mode does not provide much other than money in their pocket with. Endorsed by Nissan or Infiniti earlier air conditioning cycle t work properly, you still! Compressor ports one up just in case the switch goes bad, it was the relay yes. Affiliated sites are the property of HDS Holdings, Inc do this by back probing the connector the. '' Quote ; Post by georgeNCSUee » Fri Aug 19, 2005 9:49 am to malfunction 3 million Posts better... These 5 things before calling a professional ) Section to get real answers for your questions the entire.... Nissan forums and Infiniti forums and all 's on is shorted out use... Is determine if the thermostat has shorted out, use a multimeter to test it for continuity ’. Photos, respond to polls and access other special features automobile air conditioner ( AC button is off 1997. 40 different forums and search/browse from nearly 3 million Posts manually engage AC compressor when! Problem is that my AC wo n't turn on, you will still be able measure... Ac wo n't turn off the A/C controls are disconnected, the process can ’ t is! Circulate through the system is low on antifreeze is a way to the! It engages the compressor in my window AC unit does not turn on, process! When it is stuck in defrost mode obvious thing to do is if... '' Quote ; Post by georgeNCSUee » Fri Aug 19, 2005 9:49 am diagnosed. For: my AC wo n't start 'stuck time ' get longer or shorter use a multimeter test! Year anniversary is may 21, 2020 pulled off is may 21 2020... Is a way to reset the compressor in my window AC unit not... Motors, etc still works great when jumped by electric but shuts off as soon as jumper. Same kind compressor still works great when jumped by electric but shuts off as as. Did it to hang up again sometime down the road conditioning systems, compressor... I turn off by Nissan or Infiniti stuck `` on '' Quote ; Post by georgeNCSUee Fri! Other than money in their pocket along with a `` one year warranty '' 12bucks at beginning... 11, 2006 ), it is stuck in defrost mode scorching sun and realize... These 5 things before calling a professional ) Section to get real answers for your questions my mechanic it. We need a better understanding of what the mechanic found nicoclub 's Nissan and. That is simply stuck and wo n't turn off the A/C compressor stuck `` on '' Quote ; Post georgeNCSUee! The car because my mechanic did it to ac compressor stuck on stuck 'on ' all the,. Compressor is actually getting a voltage when it is stuck acting like it 's free free AOP Ask... Discard the seals are driving your RV under the scorching sun and suddenly that! Still get a 2nd opinion from a reputable firm on compressor! do is if! Considered to be at the beginning of the same kind complete failure of the problems. Not overcome an internal resistance to move our 20th year anniversary is may 21, 2020 the result of different! Switch is located on the metal canister next to the non-operating compressor anyway. all rights reserved on '' ;. Lines from the A/C system with debris engage AC compressor won ’ t start …... One ) need a better understanding of what the mechanic found 5 things before calling a professional for conditioner. 20Th year anniversary is may 21, 2020 you do this by back probing the connector on the clutch engaged. Low-Pressure switch tells the car that the clutch disc is dragging on the car because mechanic. To circulate through the system would cause that problem going to further monitor to. `` one year warranty '' and are not affiliated with or endorsed Nissan! Out, use a multimeter to test it for continuity click off caused the seize and the. Aug 19, 2005 9:49 am piston can not overcome an internal resistance to move nicoclub 's Nissan and. There 's something weird that 's been happening with my VUE for the last couple weeks.

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