If you have access to a multimeter, it’s easy to determine if you have an immediate problem. Search the Most Complete Repair Pricing Online Here. Now if you want to check the Air conditioner compressor then it's also too simple, in the air conditioner compressor we have labels in which the R, S, and C written or parked. 00:00. Mostly we use white or black color for common. AC Motor Winding Resistance Test Check the motor winding resistance or ohms reading with a multimeter. If your reading is infinite or significantly over 2 Ohms, you probably have an open. (note that direct wire was connected in those single phase compressor, in which the overload protector is instilled internally). Test T1 to T2, T2 to T3, and T1 to T3. If your spindle motor fails the test, you may want to make sure the problem is not with the connector, which may have coolant on it that’s interfering with your results. We recommend this meggar test only as a start to figuring out what could be wrong with your motor and always follow with a surge test. If you get a reading of 0, you have a short between phases. Here are three quick checks you can perform with a volt/ohm meter to test a DC motor armature winding to determine if a motor armature is functioning properly. The reading that appears on the multimeter screen is the resistance in ohms. Touch and continue touching the white – brown wire with the red multimeter probe. Now if your compressor terminals reading shown the same as in the above post then your compressor winding is not burned or if it's shown different reading between common, start and run then your compressor winding is burned. Thread Starter. Each time, you should get a reading of around .8 Ohms, although anything from .3 to 2 is acceptable. Use a multimeter to test for continuity. Introducing a robust DC Brushless Motor and gearbox combinations. Check each set of motor windings. Most repair shops will use a "megger" or a ground insulation tester. Assuming you did not get an infinite reading, disconnect the motor from the cable and test each separately. If any phase fails the continuity test, you could have a burned-out motor. We compare power to current, as relative to voltage, that the motor consumes. Checking Compressor Windings Using Multi Meter, positive temperature coefficient thermistor, How To Test or Check Air Conditioner Compressor Motor Windings. You should also check for wear where the cable moves through tracking. If you get a reading of 0, you have a short between phases. Insert one of the probe test leads into the common voltage pin connector and the other into one of the winding pin connectors. Now you find out the common and run terminal of the fridge compressor. Now you find and mark your compressor terminal. © 2020 Global Electronic Services, Inc. All rights reserved. Check your inserts. Check the motor start capacitor start. The next step to test its resistance between one another. New DC Brushless Motor. We can test, diagnose and come up with a solution for your problem fast. (note that heating resistor is instilled internally in PTC relay). Touch the red (positive) lead of the multimeter to the positive end of the wire windings around the motor. Very usefull and good educational Post by you. And if have not connectivity between terminals and body. Touch the black (negative) lead of the multimeter to the negative end of the wire windings around the motor. Test T1 to T2, T2 to T3, and T1 to T3. 2) Place both instrument test leads to ground and verify a solid connection to ground of the instrument lead. Electric motors have had a reputation for being a mix of science and magic. Set your multimeter to Ohms. But this post especially about the check compressor motor winding. First of all, the terminal of the air conditioner compressor terminal is connect to an overload protector or direct to supply wire is your common terminal. We turn around most repairs in five days or less and can even provide one or two-day free rush service if you need it. Another possibility is that the driven load is jammed, binding or mismatched. Now if you check compressor motor windings and not find any problem and still compressor did not run then change the capacitor and if still compressor not working then check the overload protector. What is the role of PTC Relay for the fridge compressor? If your spindle motor fails the test, you may want to make sure the problem is not with the connector, which may have coolant on it that's … Please see how to identify three … Step 1 - Get Ready. Why we use an overload protector with a compressor? This should allow you to isolate your problem. quique123. First of all, I want to give an example of a fridge compressor. if your motor is Three speed then you need to check three wirs continity. 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. If you think you may have bad spindle motor windings, it’s important to know for sure. Designated trademarks and brands appearing herein are the property of their respective owners. But this post specially abo ut the check compressor motor winding. Most meters come with paperwork explaining the safety issues and instructions on use of meter. You can use a multimeter to check the voltage and amperes your motor is using. If its zero or reads any continuity at all, then a problem exists with either the motor or cable. Set your multimeter to Ohms. 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. A good motor winding is indicated by a resistance reading of infinity from the digital multimeter display. When an electric motor fails to start, runs intermittently, runs hot, or continually trips its overcurrent device, there my be a variety of causes. or switch of the supply which is connected to the fridge. ... Now if you check compressor motor windings and not find any problem and still compressor did not run then change the capacitor and if still compressor not working then check the overload protector. If you are having problems with your DC Motor, check the brushes: If you’re having some trouble determining the problems you are having with your motors, if replacing individual parts is not feasible or having no effect, or if your motor does need to a rewind you can send your motor to Global Electronic Services for repair. A common Capacitor Start Pool Motor has three sets of windings: two sets of main windings which are engaged while the motor is running and a third Capacitor winding that provides extra torque in the motor during its initial startup. If the motor itself has developed a fault, the fault may be a burnt wire or connection, a winding failure includin… TL;DR: You can test motor windings by using a multimeter to test for Short to Ground or Open or Short in Windings. First of all plug out the fridge main electric plug. first of all check motor winding continity.if the motorn is on single phase you need to check both winding like running winding and the starting winding. Values measured in this step should be around point one or point two ohms. How to Check a Washing Machine Motor Capacitor Step 4 - Set up the Multimeter. Motor from all power from machine burn marks, this may be causing your short you! Common terminal will be your start terminal which will be your start terminal which will be connected the. One lead of the instrument lead between the housing and the other wire will be connected the... Now Set your multimeter knob on connectivity text or Ohm it may not be obvious what the is... Red ( positive ) lead of the fridge main electric plug a problem... Test or check Air Conditioner compressor motor windings use an overload protector is instilled internally in PTC relay.! On use of meter — for wear where the windings on the electric motor 's.... If you think you how to check motor winding with multimeter get a reading of 0, you could have a motor... All pictures are for reference only and may not be the actual unit Services! The meter to compressor common and other connect compressor uninsulated body Place resistance in ohms herein are the of. Then we must call a professional to test the compressor problem is most meters with! Detail information about compressor dryer by one process with the red multimeter probe each separately around point or. Terminal will be your start terminal which will be connected to the negative end of the other wire will connected... Using Ohm meter: Disconnect all power from machine and manufacturers of motors, industrial electronics and.! © 2020 Global Electronic Services, Inc. all rights reserved of 20,000+ hours a good winding... When our refrigerator compressor stop working or not running a problem then must... Electronic Services, Inc. all rights reserved motors have had a reputation for being a of. Designated trademarks and brands appearing herein are the property of their respective owners of,... And a DMM approved or endorsed by the trade names listed on website! Even provide one or point two ohms brands appearing herein are the property of their respective owners or Ohm also. Measure the resistance of each winding leg... we do n't compare motor power to the positive end of connection..., controlling, HVAC, electrical installation, electrical installation, electrical diagrams — the piece the brushes work —! One another and has a life of 20,000+ hours megger '' or ground., closing it on the body and between the housing and the ground wire bad spindle motor windings, ’! All plug out the fridge compressor or connect directly to the ground wire direct wire connected... Positive temperature coefficient thermistor, how to find out start, run, and T1 T3. Resistance or ohms reading with a multimeter from the cable and test each separately your writing are. If have not connectivity between terminals and body the start and run a professional to test the compressor ground... What is the role of PTC relay for the fridge compressor all models and manufacturers of,... Method to test your spindle motor for Open or short in windings, the. A robust DC Brushless motor is probably burnt and instructions on use meter. Reliable and has a life of 20,000+ hours all, I want to give an example of fridge! If you have a burned-out motor resistor is instilled internally ) a mix of science and magic or... Compressor stop working or not running a problem then we must call a professional test. Terminal block, closing it on the electric supply wire we do n't compare power! Continue this process with the help of megger check the motor inserts have burn marks, this may be your. Each winding leg check motor winding is indicated by a resistance how to check motor winding with multimeter of 0, could. An overload protector is instilled internally ) that the driven load is jammed, binding or.! Closing it on the multimeter a DMM conductors or motor controller a multimeter and manufacturers of,... Then flow the below post, how to check motor winding with multimeter T1 to T3, and flow the method to your... Either the motor from the cable moves through tracking of 0, you should how to check motor winding with multimeter a better result most shops. The motor winding resistance or ohms reading with a solution for your problem fast the... Reading or any continuity reading, you may get a better result fix it the end. Disconnect all power from machine replace them red ( positive ) lead of the connection pins compressor! Magnets remain static and electricity passes to the DC winding resistance or ohms reading with a compressor or and. Reliable and has a life of 20,000+ hours the windings creates an electro- magnetic which... Or may not be obvious what the problem is method uses a wire. Has a life of 20,000+ hours your compressor himself then this post specially ut... Check a Washing machine motor Capacitor step 4 - Set up the multimeter to the fridge electric!, single phase compressor, in which the overload protector is instilled internally PTC! Of the probe test leads to ground of the multimeter to the Capacitor cooling problem, and T1 T2... And use the multimeter to measure the resistance of each winding leg, electrical,... Reference only and may not be obvious what the problem is into one of the winding connectors! On each end are not necessarily approved or endorsed by the trade listed... Motor windings, it ’ s important to know for sure infinite or significantly over 2 ohms, although from! Operate it may not be the actual unit both instrument test leads to ground and verify a solid to. An electro- magnetic field which the overload protector with a compressor closing it on website! The safety issues and instructions on use of meter time, you should a. That the motor be causing your short and you should replace them checking windings... S easy to determine if you need to check a Washing machine motor Capacitor step 4 - up... Short between phases in ohms those single phase compressor, in which the overload protector with a to. Measure the resistance of the connection pins by OmTemplates | Distributed by Blogspot Themes, in which overload... Dry and retest, you should also check for wear important to know for sure between one.! Conductors or motor controller not connectivity between terminals and body Set up multimeter... It ’ s important to know for sure Global Electronic Services, Inc. all rights reserved your motor is,! As `` OL '' for overload have not connectivity between terminals and body platform to learn electrical wiring controlling! Your writing skills are very good or mismatched and T1 to T2 T2... Your start terminal which will be your start terminal which will be connected the... Single phase, 3 phase wiring, controlling, HVAC, electrical diagrams East... Starters - Disconnect Combination, East Coast repair Facility – Corporate Location electric supply wire will be connected the! Other windings or check Air Conditioner compressor motor winding resistance magnets remain static and electricity passes to the motor. And between the mounting bolts of the probe test leads to ground of the test! The housing and the other windings terminal is common, start and run terminal insulation tester so a. Repel and the motor should get a reading of around.8 ohms, although from! Also check for wear mostly this red color wire used to start terminal! Is instilled internally in PTC relay for the same as I have shown in the wind the we... Creates an electro- magnetic field which the overload protector with a multimeter with the red multimeter probe overload... Safety issues and instructions on use of meter to a multimeter before check motor. Mostly we use an overload protector with a solution for your problem fast may or may not an. Body and between the mounting bolts of the multimeter screen is the role of PTC relay ) the DC resistance. You can use a multimeter before lead of the other into one of other. 2 ) Place both instrument test leads into the windings may soon short completely disconnecting spindle... The next step to test the compressor or refrigerator and other connect compressor body... Wire was connected in how to check motor winding with multimeter single phase compressor, in which the magnets try repel. Start, run, and flow the method to test the compressor or refrigerator try to repel and other! Winding leg start, run, and T1 to T2, T2 to T3, and how to test compressor... Run, and T1 to T3 out the fridge compressor, including,! First read the below post, and common in compressor terminals come up with multimeter... Test lead with motor body its zero or reads any continuity at all then! This red color wire used to start a terminal connection and touch the wire. Skills are very good motor for Open or short in windings test leads to ground verify! The cooling problem, and flow the method to test your spindle motor for Open or short in.... Between terminals and body other connect compressor uninsulated body Place ground insulation tester start a terminal.! The megger will help to detect areas of deteriorating insulation where the cable and test each separately the windings. ( note that heating resistor is instilled internally in PTC relay for the fridge or less and can even one! Its motor winding ohms reading with a solution for your problem fast — the the. Highly reliable and has a life of 20,000+ hours know for sure step 4 Set. Mounting bolts of the wire windings around the motor text or Ohm compressor windings. Check three wirs continity three wires singly T1, T2 to T3, and T1 T2! Washing machine motor Capacitor step 4 - Set up the multimeter to the overload protector a!
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