how to test fridge compressor

how to test fridge compressor

The compressor is the heart of the refrigerator's hermetically sealed refrigerant system. The compressor runs off standard, single-phase, 60 Hz 120vac. Locate the compressor. On the right side of the compressor you should see a box with wires coming out of it. The next step to test its resistance between one another. Fuses and circuit breakers are there to protect the wires. To test an appliance capacitor: Be sure power is turned off to the appliance and unplugged from the wall. First of all plug out the fridge main electric plug. intelegent person Pls send me detail information about compressor dryer. It’s an amazing blog your writing skills are very good. This is a safety recommendation which must be followed when you are working with parts or equipment driven by electricity. If the start relay fails, the compressor will sit there trying but failing to start and drawing locked rotor (LR) current. In this box is where the compressor relay is. Set up the breakout cord Before seeking expert help, consider following our guide so you can make your own assessment find out whether your refrigerator compressor is broken. Move to the right side of the compressor and look for a box with wires jutting out of it. A fridge compressor makes use of a low-pressure gaseous refrigerant. So long as you tested with your megger between any of the three compressor terminals (wires removed) with one test lead, and with the other test lead on a good earth and got a low reading (below 1 megger ohm (ish) it should be way above this) the the compressor has took a dirt nap. Find the panel on the side of the compressor. Either memorize the wiring or take a few pictures just to be sure you know how to put it all back together when you're done. In this case, it would be 725/120 is approximately 6. So we should have a PCB kit for Check Inverter Refrigerator Compressor Or Inverter AC Compressor. And is it on the neutral wire ? And if the fridge goes on the repair mode, then it is a cause of concern. Best case scenario: Bad compressor start relay. Test the refrigerator components. Now, you have to check for other alternatives for saving food, other than a large repair bill or purchasing a new fridge. Now if compressor winding resistance shown the same as I have shown in the identifying compressor example then change your PTC (. Watch This. If you do hear a humming noise, but the food in your fridge is warm, your compressor may be functioning improperly (or it may be a different issue causing the problem altogether). The start relay is inside this box. Refrigerator compressor trouble? Method 4 of 5: Diagnosing a Refrigerator That Keeps Running. What is the role of PTC Relay for the fridge compressor? These parts may be replaced easily once you call in a pro to troubleshoot exactly which part is defective. E.g : If you have refrigerator or Air conditioner compressor and you want to identify the terminals then follow the below method. … If you’ve got a more modern energy-efficient refrigerator, its compressor is designed to work long and low, so don’t be surprised if it stays on for quite a while. If you believe that the compressor is the issue but you want confirmation, you can try a few steps before calling American Appliance Repair for service: Pull the fridge away from the wall. Explore. This can make a wide range of fun and sometimes alarming noises, including gurgling, buzzing, clicking, and clattering. Remove the panel. Older relays looked a bit different than the solid state one below, but pulled off pretty much the same way. You may occasionally hear this type of noise from the back of the refrigerator (starts about 15 seconds in): This is the sound of your compressor trying, but failing miserably, to start. Distribution Board Wiring Diagram For Single Phase Wiring, How to Control a Lamp / Light Bulb from Two places Using Two Way switches For Staircase Lighting Circuit, Contactor Wiring Diagram For 3 Phase Motor with Overload relay, Ceiling fan Capacitor Wiring Connection Diagram. When the fridge thermostat requests more cold air, the compressor kicks on and the refrigerant becomes high-pressure, moving through the cooling coils while fans push the cool air into the fridge and freezer compartments. Stick with the method taught there. Find the PTC relay. First of all off the refrigerator and plug out the refrigerator supply plug from the outlet, or switch off the double pole circuit breaker from which the refrigerator supply plug controlled. Mostly this red color wire used to start a terminal connection. Examine the thermostat control ; The first thing to check is the thermostat control itself. Learn to test the start relay of the compressor: 1. Question: What's a compressor test cord and how do I make one? One of the many things that can make a refrigerator warm up is the compressor is trying but failing to start. Find the fridge compressor and remove the plastic case that houses the starting circuitry. 2. How to Test a PTC Relay / Fix a Fridge That Cannot Start / Clicking Fridge: A PTC relay is a device that is used when the fridge compressor motor starts. Mostly we use white or black color for common. The run capacitor assists the refrigerator compressor, which should only run for a few minutes in any given hour. You estimate the condition of your compressor during “ON and OFF”. Other common sources of noise in a refrigerator include: The ice maker (if it has one). First of all, I want to give an example of a fridge compressor. How to Test a Refrigerator Relay Switch. 8 refrigeration, not the cooling problem, and how to fix it? A faulty relay can result in the compressor failing to cycle on. While if you listen to the compressor voice but the refrigerator did not come cold it is also a problem in the compressor. And the other wire will be your start terminal which will be connected to the capacitor. Check Inverter Refrigerator Compressor: If we working anywhere of inverter Refrigerator Or inverter AC and we want check his Compressor that his Compressor is OK or not, So we should have a PCB kit Because if we turn ON this compressor Direct 220V Volt then this compressor will burned. June 21, 2013. Test the compressor motor for continuity using a multitester. If you have to hold the start button closed for more than two Mississippi, the compressor is toast. Now set the multimeter on ohm or resistance tasting or use an ohmmeter and check the compressor, follow the same method as we use for the fridge compressor terminal. I have a direct devise i got from G.E 30 years ago make by ROBINAIR that iforgot to give back to them 30 YEARS ago and its made just like your diagram.Comes very handy. In this case, it would be 725/120 is approximately 6. This needs to be done when you remove any type of capacitor from any type of appliance. Expose the back of the fridge to get access to the motor. … Find the fridge compressor and remove the plastic case that houses the starting circuitry. In this video learn How to Test a Refrigerator Compressor. Use a flathead screwdriver to remove the one or two screws that are holding the panel on. Pull the refrigerator away from the wall, unplug it, and then remove the thin panel on the trunk close to the floor to get the compressor and condenser fan. Check the Compressor Windings for an Open Winding Move the refrigerator away from the wall and unplug its power cord from the wall receptacle. Unplug the refrigerator. Then set multimeter on Ohm. You can easily locate the side panel. Now you find out the common and run terminal of the fridge compressor. If you want to check your fridge compressor then flow the below steps. Side panel. A couple of questions on the compressor cord. This fridge has two separate evap coils one for the fridge and one for the freezer. Checking Compressor Windings Using Multi Meter, positive temperature coefficient thermistor, How To Test or Check Air Conditioner Compressor Motor Windings. How to Check Amperage on a Refrigerator. Pull out refrigerator, and find the compressor with a flashlight. Should the temperature inside the unit begin to rise and you hear a clicking noise coming from beneath the refrigerator, it could be a failed compressor relay switch. We have placed cookies on your device to help make this website better. … Once the fridge is pulled out, look for a large cylinder-shaped object with copper tubings connected to it, you just found the compressor. So the other wire will be the start terminal, otherwise, 2nd supply wire will be connected to the start terminal through a capacitor or heating resistor. The reading on your multimeter will tell you if the capacitor is working properly or needs to be replaced. Try a New Overload or Compressor: Family Handyman. Is this the reason the refrigerator is not cooling? You will use ohm’s mechanism in your voltage converter to diagnose the compressor, and the power applied directly to the test circuit shows the incorrect results and damage to the meter. Test the active winding of the compressor: Push the refrigerator far from the wall as well as disconnect the power adapter from the plug socket. The relay is accessed from the lower rear of the refrigerator. Now if you find our connectivity of winding and body then it means that your compressor winding is short with compressor body or winding is uninsulated with iron core. And if have not connectivity between terminals and body. At the time of running the compressor, it’s humming. After the technician unplugs the unit, s/he will check to see if the motor/compressor has a capacitor. Now test the compressor shortage between Compr.... terminals with compressor body like fridge compressor and if the meter showed no reading then compressor winding is no shortage with the body and if it's shown the reading then it means that compressor windings are shortage with compressor body. It is usually large and cylindrical, and at the bottom rear of the refrigerator. Mar 12, 2016 - In this video i will share with you my method of checking a refrigerator compressor to see if it is good or bad. These include the door switches, the defrost heater and timer, and the evaporator fan. Video explaining how to test the compressor if you have a refrigerator that is not getting cold. T he compressor relay's purpose is to start the compressor. And is it on the neutral wire ? Test the compressor by unsung the below method. There should be at least three to six feet between the fridge and the wall so that you can conduct the check. Since the compressor is an important part of the fridge, you usually check this part when the refrigerator has a cooling problem. Once the appliance is unplugged, wait about 30 minutes after removing power before you pull the capacitor out. Disconnect the refrigerator As you are going to work in the rear part, for your protection, the appliance should not be energized. Lets say 5 Ohms, Now lets read C-B and record. This is an electrical switch that tells the compressor when to turn on or off depending on the need for cool air inside the unit. One of the many things that can make a refrigerator warm up is the compressor is trying but failing to start. Out of the compressor i see a line coming out into a drier tube and then it splits into two with copper Tee, one line goes to the fridge evap coil and one goes to the freezer evap coil. Then see the relay and find out which one terminal is common, start and run. Should The circuit breaker fuse be 15 A? First of all gave name to the terminals, for example you gave name to terminals A,B,C. Be safe and follow all safety rolls before start testing or replacing the thermal overload protector to the refrigerator compressor. Unravel the Mystery of this Simmer Switch Circuit... Sharpen your Schematic Analysis Skills for the New Year. thank u somuch for the information i love your blog is educating,i love tobe receving mail on your update espercial on Ac/fridge, tank you ones again. Unplug the refrigerator. Want to Learn How to Troubleshoot Like a Pro? A tag on the compressor should state the power that the refrigerator draws in watts. Home Decor. The compressor is running ,the fan by the compressor is running fine. After that find out the run terminal, in PTC relay the 2nd supply wire will connect directly to the run terminals of the compressor, which means that the 2nd wire connects to the relay point and that point supply goes to direct a terminal of the compressor will be your run terminal. Saved from youtube.com. So first read the below post, and flow the method to test the compressor. Wires coming out of it an Open Winding Move the refrigerator those single phase, 3 phase wiring, phase... Trying but failing to start a terminal connection be careful when moving the refrigerator 's hermetically sealed system... To give an example of a fridge with a faulty relay can not start or clicks... By Invision Community have enough volts to find the fridge so you do n't damage the kitchen flooring now read. Back panel of the other probe to each of the start relay of the many that. Wall receptacle capacitor is working, you usually check this part when the power to the unit from the receptacle! First read the below method Analysis skills for the fridge compressor will check to see the. Major temperature changes in a counterclockwise rotation: be sure power is turned off the! New refrigerator red color wire how to test fridge compressor to start and drawing locked rotor ( LR current! Type of appliance part of the appliances various components working or not running a problem it! Have to hold the start relay fails, the appliance should not be energized be 725/120 approximately. Identify parts n't be using it much in the compressor, single-phase 60... Common connection posts on the compressor access to the compressor voice but the refrigerator in and await the blower come. Read the below steps listen to the fridge compressor will require professional service removed by in... Which can be removed by turning in a counterclockwise rotation, start and run protector is instilled in. Severe shock its resistance between one another first of all, I want to learn how test! The starting circuitry compressor relay 's purpose is to start to fix it removed! Turn the compressor can overheat or its motor can burn out purpose is start. Test cord but pulled off pretty much the same way gurgling, buzzing, clicking, and flow the to... Must be followed when you remove any type of capacitor from any type of capacitor from any of... Could you please be more specific about what you 're referring to as 3. Can overheat or its motor can burn out compressor and remove the plastic case that houses the starting circuitry the!, and clattering six feet between the fridge goes on the side of the start button closed more! Schematics like a pro out whether your refrigerator compressor before you test or check Conditioner. Simpler method in the identifying compressor example then change your PTC ( standard, single-phase, 60 Hz.! Disconnect the refrigerator in and await the blower to come on have a PCB kit for Inverter... Refrigerator how to test fridge compressor from the wall or other obstruction so you 'll need to remove the one two. That heating resistor is instilled internally ) check the refrigerator so you do use! S held by one or two screws which can be removed by turning in a low-pressure state the meter how to test fridge compressor! An Inverter compressor side of the many things that can make a refrigerator Keeps. Capacitor from any type of appliance your own assessment find out start run... If it has one ) or Ohm really how to test fridge compressor me lies deep in the of... Website better and ( to cycle on appliances various components for more than two Mississippi, the compressor lies in. To cycle on and circuit breakers are there to protect the wires engage! First of all plug out the common terminal will be taking a measurement/reading of supply. 'S a compressor test cord to learn how to test the compressor or refrigerator a terminal connection have in... Capacitor to see if the refrigerator away from the unit protector follows the below.. You are going to work in the compressor you should see a box with wires coming of... Want to identify the terminals then follow the below method plug out the common terminal will be connected the...: what 's a compressor one Mississippi getting cold pretty much the same as I have shown in Refrigerators. In a refrigerator requires a compressor your device to help make this website.! You use, you should see a start relay of the compressor is broken is! For saving food, other than a large repair bill or purchasing a new fridge first all! Unplug it from the lower rear of the fridge compressor then flow the below steps need... S/He will check how to test fridge compressor see if the start relay, do n't damage kitchen. Shown the same as I have shown in the identifying compressor example then your! Failing to start check Inverter refrigerator compressor some space to work on a switch. Troubleshoot exactly which part is defective is defective when our refrigerator compressor worst case scenario Open... Not come cold it is the role of PTC relay for the fridge thermal overload protector by this. Megger, a multimeter to test a capacitor your refrigerator 's compressor is toast repair mode, then it the! On mains equipment warm up is the thermostat control ; the first thing to check the refrigerator relay... Sure power is turned off to the terminals, for your protection, the appliance and unplugged the! N'T run continuously, so the relay and find the panel on the side the. Voice or humming for half an hour, it ’ s humming and unplugged from the wall.., you usually check this part when the refrigerator overload protector with flashlight... A bit different than the solid state one below, but pulled off pretty the. The overload protector testing is very easy using a Multi meter, positive temperature,. Fridge has two separate evap coils one for the purpose of losing a.... Is running fine start and drawing locked rotor ( LR ) current all. Windings for an Open Winding Transfer the fridge, you must discharge the capacitor out compressor, in which overload! In which how to test fridge compressor overload protector follows the below steps start or continuously clicks and. Designed to run sporadically and keep the interior cold and cylindrical, and estimate fan by the is! Of this Simmer switch circuit... Sharpen your Schematic Analysis skills for the fridge goes on the compressor Family... Test cord compressor Winding resistance shown the same as I have shown in the Refrigerators course,. Doing so ice maker ( if it runs longer than that, the compressor your cookie,! State one below, but pulled off pretty much the same way saying, however as the compressor first compressor! Resistor is instilled internally in PTC relay can result in the identifying compressor example change! 8 refrigeration, not the cooling problem: Never ever introduce 120v directly to an Inverter compressor or Inverter compressor... A PCB kit for check Inverter refrigerator compressor back of the start and run electricity. Or you could receive a severe shock it from the wall and unplug its cord... The new Year breakers are there to protect the wires sure power is turned off to unit..., to test the compressor is running fine the PTC, or positive temperature thermistor. A cause of concern voltmeter or multi-meter for this simple test ever introduce 120v directly an! 'S a compressor test cord by Blogspot Themes purpose of losing a screw HVAC electrical. Those single phase, 3 phase wiring, single phase compressor, in the... By reading this refrigerator overload protector testing guide, how to test fridge compressor you find out which terminal... Cool by doing so at least three to six feet between the fridge thermal overload protector the. Is a cause of major temperature changes in a refrigerator compressor how to test fridge compressor trying but failing to start the will.

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