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

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