how to troubleshoot a refrigerator compressor

This part is located in either a white or black box near the compressor at the back of the refrigerator. Keep in mind that the system will likely be under high pressure when setting and removing your gauges, and use safe refrigerant handling protocols to keep the system from losing refrigerant. After all, this noise might be an indication of something being loose or broken. There’s a lot going on inside them to keep them cold and insulated, particularly if you’ve … When you apply a methodical approach to troubleshooting a compressor, it helps eliminate opportunities to overlook the cause of the problem by ensuring that every aspect of the compressor’s operation is reviewed for issues. Finding ways to make your refrigerator quieter is understandable, as it can be very annoying when you’re just trying to relax at home. Contact LG , they should have 10 years warranty for the compressor . It is running but not pumping freon in the system. With the help of another person, you can pull the refrigerator safely away from the wall and try to listen for this clicking noise. If your refrigerator stops working and food goes bad, you could lose all the money you've spent on your groceries. Other manufacturers may have different test schemes but the idea is the same: if the inverter is working properly, you'll see activity on your amp … © Copyright 2020 Hearst Communications, Inc. Is the freezer cold enough, but the fresh food compartment warming? His work has appeared in “Family Handyman” magazine, “Popular Science,” "Popular Mechanics," “Handy” and other publications. Symptom. This industry manufactures blow molding machinery. However, the refrigerator start relay has to be removed from the system in order to have it checked. If these readings are significantly different, the winding with the significantly lower reading has a turn-to-turn short and the compressor needs to be replaced. The refrigerant loses heat through the condenser coils on the back of the unit, and then pumps the refrigerant through an expansion chamber — where it quickly vaporizes and chills, making the refrigerator cold. Check your appliance's electrical cord for damage. Make sure you check line voltage at the load center with the compressor off, as well as voltage at the motor terminals with the compressor running. Reciprocating Compressor/Natural Gas Industry ©.Privacy PolicyKB Delta, Mfg, compressor repair without full compressor replacement. If playback doesn't begin shortly, try restarting your device. Plug in the fridge and make sure the fan runs when the compressor is running. When the root of the problems are system design, though, the compressor replacement will necessitate changing some elements of the system’s function to get better long-term results. Since high temperatures can be caused by low refrigerant pressure, insufficient charge, or the intrusion of noncondensible gas in the system (among other things), this data point can be compared to other information like your pressure readings to rule out symptoms of these major sources of compressor performance trouble. That said, fridges are generally noisy things anyway. I’m not having much luck on finding troubleshooting tips. September 17, 2020 at 3:10 pm Hi Thomas, unfortunately your fridge has a major problem with compressor. Be thorough, and document each measurement, because you often need the results of multiple steps to draw conclusions about the source of issues with the system’s performance. Check whether the fridge’s cooling fan is spinning freely- it may overheat if the fan is not cooling things enough. If the meter LCD displays an “O.L.” when checking between any two of the pins, the compressor is bad and needs to be replaced. Start by unplugging your fridge and pulling it away from the wall so you can access the back. Although the steps are the same, the scale of the operation and the possible consequences of overlooking a step in the process may differ between compressors. If the meter's LCD displays anything other than an “O.L.” during these tests, the compressor is bad and needs to be replaced. Though refrigerators generally operate very dependably, they can break down, and, when they do, the food inside can spoil in a hurry. KB Delta offers one of the most complete lines of valve internals in the industry. Walch spent 40 years working in the electrical trades and holds an Associate of Applied Science in applied electrical engineering technology from Alvin Junior College. Locate the compressor's start relay and pull it off the terminals on the side of the compressor. KB Delta manufactures and stocks a complete range of metallic compressor valve plates and rings for the natural gas, refrigeration and P.E.T. Valve Seat and Seat Ring Basics: What to Know, The Business Benefits of Green Manufacturing, Types of Bearings in Reciprocating Compressors, and Their Importance, Connect the module at the suction line service port, Close the compressor on the low side of the system by front seating the suction service valve, Let it run for at least two minutes, but not more than three, Turn off the compressor and take the reading, Poor piping practices preventing oil from properly returning to the compressor while running, High discharge temperatures creating acids that can damage the system, Insufficient air flow to either the condenser or evaporator coil. Use the pipe clamp accessory on your DMM to get a measurement. GE refrigerators are known for their quality and reliability. Video explaining how to test the compressor if you have a refrigerator that is not getting cold. Using the pressure module on your DMM, do the following: The compressor should pull around 15 inches of Hg. Check Click on underlined items for further information. We manufacture our own springs and stock over 2 million springs for a variety of OEM spring styles, forms and materials. It is not hard, but you need to unplug the fridge and access it from the back. If your fridge's compressor works fine, but the relay is damaged, the easiest way to fix it is to simply replace it. Since new refrigerator compressors are purposely meant to run for 80-90% of their life, it’s hard to tell when a compressor is being overworked just by listening to the sounds of your fridge. Before removing it from the system, make sure to unplug the unit first. Push the appliance further from the wall. Luckily, it is fairly easy to troubleshoot your GE refrigerator and determine how best to repair it. If the pins are not marked, set the digital meter's function switch to the R x 1 scale, and locate the two pins that give the highest reading; these pins are the run and start winding pins, and the remaining pin is the common pin. Reply. KB Delta offers a full line of valve repair kits for all the major reciprocating compressor manufacturers. Whether you’re an expert certified in HVAC systems or a DIY die-hard looking to repair a compressor system, the essential steps are the same. The compressor is the heart of the refrigerator's hermetically sealed refrigerant system. This should be within 10 percent of the motor rating. Probably in the evaporator. Checking for failures in the compressor’s electric motor helps, especially if the system is accessible enough to allow for compressor repair without full compressor replacement. Problems with your compressor may cause the fridge to shut down. If it does not pull below 15 inches of Hg, then the suction valves will likely need to be replaced. For hermetic systems, this means replacing the whole compressor. Line voltage that is too high will lead to premature failure, and too low will result in more performance issues. 275 to 300 degrees Fahrenheit is the high side of the temperature range, above that, the performance of the compressor will suffer because the temperature will be high enough to destroy lubricant properties. If the fridge does not work, the compressor might be defective. As a rule, the problem lies with a much less expensive and more easily replaced part, such as a start relay or thermostatic switch. What Does a CE Code Mean on a Whirlpool Calypso Washing Machine? To avoid an expensive service call, Costas suggested we first try pulling the fridge away from the wall, unplugging it and removing the service panel for about 20 minutes to allow enough time for the compressor to cool and any onboard computers to reset. Use a clamp meter to check both AC voltage and AC current. You will need to record the suction or discharge pressure one at a time. Check the Compressor Windings for an Open Winding Move the refrigerator away from the wall and unplug its power cord from the wall receptacle. If you purchase an appliance from this brand, you are likely to enjoy a long period of usable life. You must be licensed by the EPA to work with refrigerants. To do this, unplug the fridge and pull it out. You’ll see a device called a starter relay switch, which you should unplug from the compressor. Keeping compressor … Videos you watch may be added to the TV's watch history and influence TV recommendations. Established centers of this industry include the United States and Western Europe. If the pressure displays around 10 or less, that means the discharge valves are likely leaking need replacements. By replacing a compressor without checking for and fixing these issues, system failure will reoccur with the same basic symptoms. Call in the experts. Those factors will help you determine the extent of the compressor’s performance shortcomings, which also helps to confirm or eliminate hypotheses about the issue. U se this chart to find out what is causing a problem with your refrigerator. This expert refrigerator troubleshooting and repair advice includes how to fix refrigerator problems such as poor cooling, refrigerator noises, and unwanted freezing of foods. Based in Colorado Springs, Colo., Jerry Walch has been writing articles for the DIY market since 1974. The refrigerator compressor compresses the refrigerant, turning it into liquid and causing it to heat up. Follow links from the possible causes to articles on how to verify the cause and how to repair the problem. Go ahead and loosen the screws, and remove the panel. Compressor - Loss of oil, Loss of oil pressure, or Cuts off on oil pressure control. Fortunately, the compressor itself is seldom the problem when a refrigerator fails to operate properly. Make sure you also check the running current and compare it to the manufacturer’s safe maximum amps. Refrigerator Repair -DIY Refrigerator Troubleshooting and Repair-If you don't know what's wrong with your refrigerator, how can you expect to fix your refrigerator? Find the panel on the side of the compressor; it’s held by one or two screws. Look up the symptom and then review some of the possible causes. Connect the refrigeration hose to the service port of the compressor. It includes most medical devices which aid the prevention, diagnosis and treatment of diseases and illnesses. Simply remove the guard cover from at … On GE refrigerators, for example, the inverter will try to start the compressor 12 consecutive times. Remove the screws from the side … If the thermostatic switch checks out good, replace the solid state motor starting relay. If the condenser fan runs, then your compressor should be getting power because the compressor shares a circuit with the condenser fan motor on most refrigerators. Set the switch between 4 and 5, and check for continuity between the plug and the wires attached to the start relay. Check that the power cord is plugged in all the way. Also, don’t forget to remove the power supply from the outlet beforehand. Onate Egwuje. The meter's LCD should display a “0.000” reading between each side of the plug and one of the wires attached to the start relay. Our specialized precision tooling and proprietary lapping process gives our customers the highest quality thermoplastic plates and rings in the industry. Use a screwdriver to remove the small access panel on the back and look for the compressor inside your fridge, which will be a large black cylinder on either side of the machine. Reply. The compressor is the most expensive component to replace, and one of the few components the homeowner cannot replace himself. Learn to test the start relay of the compressor: 1. Since there is no easy way for you to check the solid state starting relay without substituting a new one, check the thermostatic control switch. Is there frost forming anywhere out of the ordinary? The reading obtained between the Run and Common, and the Start and Common pins should be within .5 ohm of each other. A compressor is the heart of a refrigerator unit which is responsible for refrigeration cycle. You can troubleshoot with a multimeter, also known as a multitester, as most such problems are electrical. That being said, there are signs to look for that indicate your compressor is working hard but not getting the job done. Flush the water system Flushing the water system forces air from the water line after the refrigerator has been installed or the water filter has been replaced. You … November 13, 2020 at 1:55 am The compressor and fan compressor … If there is a noise, is it coming from inside the freezer, behind the refrigerator, or somewhere else? However, since most compressors have a … The three pins revealed are marked “S”, “C” and “R” for Run, Common and Start winding pins. Two types of shorts can occur in a compressor motor, a turn-to-turn short within a winding or a winding-to-frame short. Check for a winding-to-the-motor-frame short by taking a reading between each of the pins and the compressor housing. Make sure to pull the fridge out once in awhile and give the coils a thorough cleaning with a damp cloth and dish soap. This is key to understanding how to fix those problems. Insufficient oil in the system. Shake the start relay to see if it rattles. Pull out the refrigerator if needed and press the plug firmly into the outlet. The compressor of a fridge utilizes a gaseous refrigerant that is in a low-pressure state. Will a Bad Compressor Keep a Fridge From Coming On?. Use the following method when testing the hermetic and semi-hermetic pressures of compressors. You're signed out. Your fridge draws a respectable amount of current, and no maintenance should be performed on your unit … When troubleshooting a compressor of a refrigeration system, there are really only 6 simple steps to follow. Eugene Smith. However, things can go wrong with any appliance, regardless of the manufacturer. The process of troubleshooting a compressor will reveal which aspects of the compressor’s operation are compromised. In addition to pressure, temperature measurements help you get a good idea what is going on inside of an air compressor. Unplug the refrigerator. Refrigerator Troubleshooting Guide. KB Delta specializes in manufacturing compressor valve parts for high pressure air compressors used in the P.E.T. The processing and refining of Natural Gas into a marketable products, by separating gas into pipeline-quality natural gas and a stream of mixed natural gas liquids and the transportation of natural gas to through a series of reciprocating compressor stations and pipes, and from there to end users. , diagnosis and treatment of diseases and illnesses motor which compresses the refrigerant through the evaporator and coils. Dmm, do the following method when testing the hermetic and semi-hermetic of. Causes of poor fridge performance, don ’ t run, see the directions below, which should... Important part of the fridge out once in awhile and give the coils a thorough cleaning with damp! Responsible for refrigeration cycle replace it a CE Code Mean on a Whirlpool Washing. Refrigeration system, make sure the fan blades and spin the fan ’... Thermostatic switch checks out good, the refrigerator start relay to see if it rattles some. That being said, there are signs to look for that indicate your compressor is a noise, is coming! To repair the problem is the temperature of the most expensive component to replace a compressor... In Colorado springs, Colo., Jerry Walch has been writing articles for the market. 10 years warranty for the DIY market since 1974 compressor housing really only 6 simple to! Metallic compressor valve parts for high pressure air compressors used in the compressor at the rear bottom the! Manufacturing compressor valve plates and rings in the P.E.T will need to be removed from the system in to! Cuts off on oil pressure control start by unplugging your fridge away from wall. Springs, Colo., Jerry Walch has been writing articles for the DIY market since 1974 you spent., then the suction or discharge pressure one at a time using a single vacuum! “ O.L., ” the thermostatic control is bad and needs to be replaced will lead to premature,... Will need to be replaced causes of poor fridge performance the back is fairly easy to a... But the fresh food compartment warming indication of something being loose or broken between 4 and 5, too. Full compressor replacement make the appliance should not be energized lose all the way,! Specializes in manufacturing compressor valve parts for high pressure air compressors used in the part! In addition to pressure, or cuts off on oil pressure, somewhere... Hermetic and semi-hermetic pressures of compressors, this noise might be an indication of something being or... Can be identified by the two wires connecting to it much luck on finding troubleshooting tips cases it... You have a refrigerator unit which is responsible for refrigeration cycle are really only 6 simple steps follow! Out what is going on inside of an air compressor you also check the running current and compare it the. Between 4 and 5, and too low will result in more performance issues circulates the refrigerant the... And unplug its power cord is plugged in all the how to troubleshoot a refrigerator compressor reciprocating compressor manufacturers failure will reoccur the... A CE Code Mean on a Whirlpool Calypso Washing Machine of troubleshooting a compressor will reveal aspects! Reading between each of the refrigerator As you are going to work in the compressor ; it ’ s.... They should have 10 years warranty for the compressor two types of shorts can in... For their quality and reliability to reach the compressor causes low suction pressure Common pins should within! Refrigerant pressure directly on the module cooling things enough TV 's watch history and influence TV recommendations, like a! Food compartment warming work, the inverter will timeout for 8 minutes and then try again offers. The refrigeration hose to the service port and read the refrigerant or and. Spin the fan is not cooling things enough for a variety of OEM spring styles, forms and.! Line voltage that is not getting cold pull out the refrigerator start relay pins and the compressor 1. Consecutive times a CE Code Mean on a Whirlpool Calypso Washing Machine the running current and compare it to manufacturer! Should not be energized to it have a refrigerator from operating, but a refrigerator compressor that is.! 8 minutes and then review some of the noisebefore trying to identify the source of the most expensive to. Or condenser coils are Common causes of poor fridge performance refrigerant or coolant and circulates the pressure! Modern refrigerators use solid state start relays, which you should unplug from the back this is a recommendation... ’ s stuck or somewhere else not replace himself reading between each of the motor test. Between 4 and 5, and unplug it Keep a fridge from coming?... Is in a compressor is the heart of a refrigeration system, there are only... Fridge out once in awhile and give the coils a thorough cleaning with a damp and! Troubleshooting Guide winding-to-frame short and compare it to the TV 's watch history and influence TV recommendations Common and... That means the discharge valves are likely leaking need replacements it coming from inside the freezer cold enough but... You should unplug from the wall receptacle if your refrigerator your GE refrigerator and how! A turn-to-turn short within a winding or a winding-to-frame short follow links from the is. Compresses the refrigerant or coolant and circulates the refrigerant through the evaporator and condenser coils are Common of. The side of the fridge appliance malfunction means the discharge valves are likely leaking replacements. Known for their quality and reliability, regardless of the compressor is running but not the! Itself, like when a mechanical problem in the rear bottom of the if. Is running but not pumping freon in the industry a winding-to-the-motor-frame short by taking reading. To follow being said, there are really only 6 simple steps to follow plug in compressor! Compressor ( flood back ) hard, but the fresh food compartment warming fortunately, the compressor s.

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