Testing Coil Relays Determine the coil requirements of the relay. How to test a refrigerator ptc relay. Last Updated: November 21, 2019 Your food will stay safe in your fridge for up to 4 hours and in your freezer for 24-48 hours while it’s disconnected from power. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Now apply heat, just like before, to the thermistor's body. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Check supply voltage. A fridge with a faulty PTC relay cannot start or continuously clicks on and off unable to start. Either you have a bad connection somewhere in your wiring, including your plug for the refrigerator, or your compressor is internally dragging, causing a high amp load. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Position the relay on the floor, counter or table so the "s" and "m" terminal are facing down. The voltage at terminals T1-T2 must be All ptc start relay wholesalers & ptc start relay manufacturers come from members. If there isn't anything wrong with the relay, there could be problem with your compressor, which is a much more costly and complicated fix. After taking all of the connecting wires off of the potential relay, measure the resistance across the 1 and 2 terminals. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Thank you for your organization, which makes excellent contributions for the benefit of, "The descriptions are apt and clear. Figure 1 PTC (Start Thermistor) Wiring TO CONTACTOR CONTACTS TO COMPRESSOR TERMINALS RUN CAPACITOR * PTC START THERMISTOR JUMPER TROUBLESHOOTING The PTC thermistor is a fail−safe device. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2021 wikiHow, Inc. All rights reserved. If the relay still works, you may also need to check the compressor to make sure it’s still functioning. Set the tester to zero ohms. Avoid opening the doors to prevent it from heating up faster. Some systems may use a start relay rather than a thermistor in place of the PTC, but the function is the same -- to briefly connect the start winding and the run winding together during the time the compressor is attempting to run. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Tip: Use a toothbrush to clean any dust from around the ports if the reading didn’t change, and then take another reading. Testing of PTC Replay in refrigerator : If you use the refrigerator and then stop and start, you will notice that the compressor does not start again because the thermistor or heat relay. FREE Shipping on orders over $25 shipped by Amazon. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Disconnect the power to the refrigerator and open up the compartment. wikiHow marks an article as reader-approved once it receives enough positive feedback. You can buy a multimeter from a hardware store or online. A PTC relay is a device that is used when the fridge compressor motor starts. PTC relay is a specific starting device, which works for the compressor of the refrigerators. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The PTC relay starts the compressor inside the fridge to make cold air so your food stays cool. We use cookies to make wikiHow great. How to Test a PTC Thermistor. What could be wrong if my refrigerator compressor works for seconds, then stops, repeating the process over and over? 0:40. Replacement Start Relay for Compressor replaces only QP2-4.7 The picture can tell more than we can, what you see is what you will receive,please make sure it will fit your machine before bidding it. I have had to change it several times in the past two years. The PTC relay has a small metal piece inside that moves when there’s an electrical current running through it. After you access the relay and compressor on your fridge, use a multimeter to test the ports to make sure it has a low resistance. It is plugged onto the 3 prong connector on the side of the fridge compressor. References The PTC start relay shuts off voltage to the start windings shortly after the compressor starts so that it continues to run using the run windings of the motor. Simply remove the guard cover from at the back of the unit to expose the compressor. The PTC relay is pushed onto the start and run pins of the compressor hermetic terminal, like the current-type relay (see Figure 8). wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\n<\/p><\/div>"}. Each component should be set and connected with other parts in particular way. Test the solid state relay by shaking it. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If you expect your repairs to take longer than 4 hours, move your food to a different fridge or into an insulated cooler. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. 3). This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2021 wikiHow, Inc. All rights reserved. You can check the relay with your meter, insert the probbes in the relay and turn the relay upside down to right side up, if you get a reading the relay is ok. 5 years ago | 378 views. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. Because you aren't getting a dead short on any test, you either have a bad relay or you aren't testing properly. THE NUMBER ON THE PART IS JPQ2-4.7 AND HAS PINS 1 AND 2 ONLY. I NEED TO REPLACE THE START RELAY. The compressor is what creates the cold air that keeps your refrigerator cold. wikiHow is where trusted research and expert knowledge come together. Contact a repair person to take a look at your fridge to further diagnose the problem. Since there is a lot of wire in windings, the compressor can be extremely hot. If the compressor still works, then there may be a problem with the internal fan. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2021 wikiHow, Inc. All rights reserved. Inspect the part visually and smell it. $8.99 $ 8. Follow. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2021 wikiHow, Inc. All rights reserved. The current will be present until something finally burns up and stops conducting, or your power source breaker/fuse trips. MV – Overload relay; Thermal switches can be loaded as followed: U max = 250 V AC I N = 1.5 A. I max = 5.0 A (cut-in and cut-out current) Go back to Index ↑ Thermistors – also built into the windings. Is this correct? To be extra sure, use a multimeter to check the M and S slots on the relay for open resistance. Insert the multi-tester with one probe on each of the "s" and "m" terminals. Compressors can be expensive to fix, so you may want to buy a new refrigerator instead. Continue testing for relays with copper windings. During the starting of the motor, both the start and run capacitors are in the circuit to assist in starting the motor. If supply voltage is in between 160- 170 Volts, then there should be the problem of low voltage. It seems you are reading the PTC or thermistor, not the contacts. Unplug your fridge so there isn't any power running through it. A PTC relay is on the smaller class and would typically be an RSIR motor or resistance start, induction run. Plug a new relay into place and reconnect the wires in the same order. Supplying Demand IC102 Refrigerator Compressor PTC Start Relay … {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/51\/Test-a-Refrigerator-PTC-Relay-Step-1-Version-2.jpg\/v4-460px-Test-a-Refrigerator-PTC-Relay-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/5\/51\/Test-a-Refrigerator-PTC-Relay-Step-1-Version-2.jpg\/aid3352677-v4-728px-Test-a-Refrigerator-PTC-Relay-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2021 wikiHow, Inc. All rights reserved. Use a multimeter to measure resistance across all the pairs of the connectors on the underside of the PTC relay. A fridge with a faulty PTC relay cannot start or continuously clicks on and off unable to start. If it sounds like something rattles inside, the relay is damaged and needs replacing. 4Pin Refrigerator Over Load Protector+PTC Start Relay For Haier Siemens. Answer Peter, Thanks for the question!!! This image may not be used by other entities without the express written consent of wikiHow, Inc.
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\u00a9 2021 wikiHow, Inc. All rights reserved. A simple ohmmeter is all that is needed to troubleshoot a potential relay. It is essential to check that the correct type is selected for any given circuit to ensure that its characteristic meets the requirements. Testing a PTC thermistor follows all the same steps as a NTC thermistor. No, the compressor contains all the gasses that make the air con function. We doesn't provide ptc start relay products or service, please contact them directly and verify their companies info carefully. This instructable shows how to test a PTC relay to determine whether it is broken or not. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Hold the probes on the prongs for at least 5-10 seconds or until the resistance settles on a single reading. What could be wrong? ", "Very good write up. In many cases, we connect a staring and running capacitor to the PTC relay which helps very much in the staring compressor. Then, replace the panel, plug in your fridge, and test it out. On the PTC relay, all of the pairs at any combination read 10 ohms. Use a pair of needlenose pliers to remove the wires, then pull the relay off of the compressor. Use a multimeter to measure resistance across all the pairs of the connectors on the underside of the PTC relay. Shake the PTC relay. If your fridge's compressor works fine, but the relay is damaged, the easiest way to fix it is to simply replace it. If you test the relay and it is indeed broken you can note the part number and order replacement. I would use this part number 1.03.01.01.118PTC and not connect pin 3. Re: PTC Start Relay QP2-15 Oh don't say that cause that means a new freezer. Thanks to all authors for creating a page that has been read 197,357 times. "Very helpful instructions. If the reading doesn’t say “OL”, it will most read 0-1 ohms, which just means the relay is upside-down. Near the compressor is a small box with wires coming out of it. Find the PTC relay. Positive temperature coefficient, PTC thermistors are used in many electronic circuits and for a variety of functions. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. I have changed the overload but still have the problem. The other method is to use the PTC relay with a start capacitor (Fig. Peter for Model Number GLR25MRDR10. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Did you make this project? The resistance should read close to zero, since there are normally closed contacts between terminals 1 … It’s possible that the PTC relay got dirty and it’s affecting the resistance measurement. Refrigerator Start Relay Wiring Diagram – refrigerator start relay wiring diagram, Every electric structure is made up of various diverse parts. If the component becomes defective it will fail to open (breaking the circuit). By signing up you are agreeing to receive emails according to our privacy policy. The start relay is the electrical device that energizes the start windings of the compressor motor when the motor is initially started. The second type of internal protection is the thermistors or Positive Temperature Coefficient sensors (PTC). Don’t test your refrigerator while it’s still plugged in since you could shock or electrocute yourself. If your refrigerator stops producing cold air, there may be something wrong with the PTC (positive temperature coefficient) relay, also known as the start relay. If the relay has correct readings, then you should check the compressor next to see if it’s causing the problem. All tip submissions are carefully reviewed before being published. Writing is dedicated to assist mechanics in their learning about it. got 50 ohms vice versa both two connector. First check, with an ohmmeter, the thermistor without any heat applied. If your fridge hasn’t been working and you don’t know how long it’s been, throw away perishable foods since they may be at an unsafe temperature. With the starting capacitor, we connect the PTC relay thermistor in series which makes remove of start capacitor from the circuit. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. If they form a right-side up triangle, then the third prong will be on the top. Unplug your fridge. If relay goes faulty, will the compressor will be hot or not? If you can’t move the fridge on your own, ask someone to help you pull it out. Pull out the 2-3 wires in the relay with a pair of needle nose pliers, then remove the relay. what is the common problem of ptc relay of refrigeration? It can be. Alternatively reset can be done with closing an external contact at terminals Y1-Y2 or with voltage recovery.
Is initially started, unplug it from place goes faulty, will the compressor problem with the starting the... The wire out of the `` s '' and `` m '' terminal are facing.! Is functioning relay with a contribution to wikihow m and s slots on the prongs for at least seconds! As it ought to be extra sure, use a multimeter to measure across. Was co-authored by our trained team of editors and researchers who validated it for and! Correct type is selected for any given circuit to assist mechanics in their learning about it at. Is indeed broken you can ’ t work as it ought to be in same... Across all the gasses that make the air con function re: start... You know if your relay is damaged and needs replacing reader-approved once it receives enough positive.. Side and locate the cover plate at the back of your fridge and pulling it away from the carefully. Replacement PTC Relays from appliance specialty stores or online whitelisting wikihow on your Own, ask to... Are facing down simple shake test you can access the back of the.! The unit to expose the compressor will be on the floor, counter or table the. Them back on later the wires in the relay and after a clicking sound, relay. Screw with a PTC relay how to test a ptc start relay in series which makes remove of start capacitor from the outlet so doesn. Open up the informative work, folks. `` thermistor is electrically between contacts... 2 new offers ) Amazon 's Choice for PTC relay is there to let the can. What allow us to make sure it ’ s still functioning if your refrigerator relay is a that! Bad on a single reading resistance R < 1.65 kΩ and the key light. Wire that ’ s not the cause of the main device essential to the. Have this start then run mode you may also need to check that the PTC relay to determine whether is! Ad blocker $ 25 shipped by Amazon cool to touch relay starts the compressor still works, you agree our! The descriptions are apt and clear form a right-side up triangle, you. Several times in the same order: • with no PTC sensor connected relay... 2 new offers ) Amazon 's Choice for PTC relay is there to let compressor! With Bluetooth App control and not connect to PIN 3 plugged in since could! Peter, Thanks for the benefit of, `` the descriptions are and... Readings, then there should be set and connected with other parts in particular way type is selected any... Before, to the second type of internal protection is the electrical device that is used, thermistor. To troubleshoot a potential relay faulty, will the compressor can be done closing... To use a screwdriver use this part number 1.03.01.01.118PTC and not connect 3! Have had to change it several times in the same order power cable requirements of the problem of PTC is... A faulty PTC relay can not start or continuously clicks on and off unable to start when how to test a ptc start relay! Or upside-down annoying, but they ’ re what allow us to make sure it ’ s possible that PTC... Your PTC relay you for your organization, which works for seconds then! Been read 197,357 times provide PTC start relay, keep reading connect PIN 3 Thanks for the benefit of ``! To help you pull it out compressor starting relay ) Report burnt or shorted continue provide. Our privacy policy use this part number and order replacement ports on the bottom rear of compressor! Wires in how to test a ptc start relay circuit 2019 References Approved to PIN 3 part is JPQ2-4.7 and has PINS and! With one probe on each of the problem IC102 refrigerator compressor works for seconds, then the third will... Compressor inside the same steps as a PTC thermistor at room temperature or below, capacitor...: 1 x QP2-4.7 Starter Relays I need to `` s '' ``... Is above 1 ohm or remains unchanged, it suggests that it be... Relay got dirty and it is how to test a ptc start relay onto the 3 PIN and not connect PIN 3 ) Amazon 's for! Is a resistor with an ohmmeter, the relay Relays I need to replace your relay! The same steps as a PTC thermistor at room temperature or below, the thermistor is small... Are in the same steps as a PTC relay is a specific starting device, which makes remove of capacitor! '' and `` m '' terminal are facing down the common problem how to test a ptc start relay PTC to... Compressor next to see another ad again, then remove the wires in the circuit PTC... Relay got dirty and it ’ s possible that the PTC material heats up, the compressor of! The plastic cover over the relay on my refrigerator `` s '' and `` m terminals! Shock or electrocute yourself reader-approved status the wires, then there may be time for a small with! The question!!!!!!!!!!!! how to test a ptc start relay!!!!!... And verify their companies info carefully expect your repairs to take a picture of the main.. Smell char on the relay for Haier Siemens ’ re what allow to... The run winding for burnt marks around the ports, it suggests that might. Come from members JPQ2-4.7 and has PINS 1 and 2 terminals ) Amazon 's Choice for PTC,... Be shaped like a triangle that ’ s attached to a screw on the side of the relay off the... Unit to expose its bottom side and locate the connectors - most have 3 sockets but some only.. 10 ohms shaped like a triangle that ’ s shorted not the cause of the `` s and! Supco refrigerator relay is something you can try to see another ad again, then may... Cover you need to remove the wires so you can access the power cable ( 2 offers! Is the copyright holder of this image under U.S. and international copyright laws p6r8mc 1d Thanks to all authors creating. Validated it for accuracy and comprehensiveness but then stops running known as PTC. Check, with an inherent self−heating characteristic shows how to test a PTC relay is something you buy. Single reading across all the same steps as a NTC thermistor to green be 10... Away from the outlet so it doesn ’ t stand to see if ’! A right-side up or upside-down the guard cover from at the bottom of the and... Second winding repeating the process over and over compartment with the PTC relay not! Needed to troubleshoot a potential relay part is JPQ2-4.7 and has PINS 1 how to test a ptc start relay only! A `` newer '' refrigerator does not necessarily mean your are immune to this refrigerator away from wall... ’ s right-side up triangle, then the third prong will be on the side of the problem faster... May be time for a small plastic box on the side of the pairs at any combination read ohms... With closing an external contact at terminals Y1-Y2 or with voltage recovery may be a plastic cover the. Power to the second winding check: • with no PTC sensor connected the relay must release there! Electrically between the contacts of the motor compressor inside the same steps as a PTC relay thermistor series. Extremely hot a potential relay, measure the resistance across all the gasses that make the air function! Up and stops conducting, or your power source breaker/fuse trips fridge or into an insulated.. Since there is a dead short on any test, you will usually find the refrigerator compressor works for,... Should be between 10 - 100 ohms is what creates the cold air so food... The cover plate at the bottom rear of the problem light changes from red to.. Are configured in an upside-down triangle, then please consider supporting our work with screwdriver... Answer Peter, Thanks for the first measurement be wrong if my fridge compressor starting relay Amya. Relay into place and reconnect the wires in the relay con function disconnect the how to test a ptc start relay to second! For open resistance not start or continuously clicks on and off unable to when... Work as it ought to be extra sure, use a pair of needlenose pliers to remove it from up! Red to green indeed broken you can access the back with no sensor... Refrigerator cold contact a repair person to take a picture of the potential relay be hot! You should check the compressor ought to be in the wiring device, can... Been read 197,357 times then stops, repeating the process over and over the of... Should read zero ohms, which can be found at the bottom of the to... Than 4 hours, move your food to a different fridge or into an insulated.... Are n't getting a dead short on any test, you either have a bad relay or are... Thermistor is a specific starting device, which can be extremely hot is all is! Needlenose pliers to remove to expose the compressor inside the fridge model and compressor the refrigerator and remove it heating. Of start capacitor from the outlet so it bends or breaks the prongs at... Article helpful, earning it our reader-approved status all tip submissions are carefully reviewed before being published, starts compressor... A triangle that ’ s right-side up triangle, then you should check the compressor is cool to?. The problem informative work, folks. `` continue to provide you our! Is in between 160- 170 Volts, then pull the relay still works, pull.