the resistance that is felt could be due to a problem in the board. I made my customer very happy and I being very honest . Check for proper line voltage and 24v calls to the proper terminals in the equipment Check for proper control signal entering the motor from the 24v field wiring or boards. DIAGNOSTIC FEATURES 19 B. For the … But the ECM accomplishes its considerable chore by constantly monitoring a vast network of sensors around the car to ensure conditions are within normal … ( Log Out /  This reacts with the permanent magnet in the rotor to produce the rotation. 6 0 obj The motor itself has 3 identical windings, somewhat like 3 phase. Additionally, some manufacturers have a diagnostic tool that will confirm specific problems. This will give you the proper orientation to check the pins as needed. ECM 2.0 ECM 2.3/2.5 ECM 3.0 The three main benefits of this motor over conventional induction motors (PSC) Go to Chart # 1, Step # 5. I ran across a ecm motor today that gave me the flux. These inputs could be any of the following, depending on where the jumpers or switches are set on the CFM programming board: “A” Setting — no signal (0 VAC), “B” Setting — half wave signal (+), “C” Setting — half wave signal (-), and”D” Setting  — Full wave signal (24 VAC). Go to Chart # 1, Step # 5. ECM is the initials for Electronically Commutated Motor. In summary, reading 0 is good then I have to check out ECM motor control, don't know if how to do it yet. You will need to replace the module on the end of the motor but you may not need to replace the motor portion. My Ecm motor turns on at a delay. Also, N.A.T.E. There are many different types of electric motors and configurations, but there are three types used mainly in HVAC and refrigeration applications: shaded pole (induction), permanent split capacitors (brushed DC), and electronically commutated motors. Jun 11, Undestanding electrical connectors on Genteq X13 blower motor aftermarket replacement. ",#(7),01444'9=82. John says: September 12, 2014 at 10:38 pm. 1 0 obj The ECM board was showing communication with the motor control. November 1. Tested motor windings again and one was bad. No matter how urgent the problem and motor failure can cause some very urgent problems always develop a plan of attack before you start repair work. Kim, the plant engineer, recently hired you as the new electrical maintenance manager. Maintenance, Repair & Operations; Motors; Electrical Troubleshooting Quiz — Dec. 1, 2020. It allows for ON/OFF and 0-100% speed control of any ECM motor … The electronics in the end bell energize the windings one after the other. An electronically commutated motor (ECM) uses a microprocessor controller that sequentially energizes/de-energizes each winding of the stator with power to generate an electrical current. We decided to disassemble and inspect the system and found that pin #5 of the 16-pin receptacle on the ECM is missing. has lists of contractors that are certified and are knowledgeable in order to be certified. Model is specifically designed to identify and isolate motor failures from other HVAC system or wiring failures. Shorted windings will make it hard to rotate the motor because it is working like a generator into a load. ( Log Out /  on my transformer on the 24 volt side I had 6 volts and on the common side I had 17 volts as it turned out I had a bad ground once I fixed the ground wire my transformer now has 24 volts and my common wire has 0. They will adjust their RPM in an attempt to deliver the CFM that is programmed by the installing technician. Downloads: full (1065x758) | medium (235x150) | large (640x456) ecm motor wiring diagram – You will want a comprehensive, skilled, and easy to comprehend Wiring Diagram. endobj A faulty ECM disallows your engine from knowing how much fuel to burn in the combustion process. - Stays at high CFM. Download Video There is no jumper on the 5 pin high voltage plug therefore assume that it’s 220 vac? Posts: … The PerfectSpeed® 16-Pin offers constant Speed and constant Torque and is the only non communicating system with Constant CFM offered by Nidec Motor Corporation. Like the other types, this processor-based pulse control builds the magnetic field that causes the rotor inside this ring of magnets to turn; but unlike the others, the microprocessor is using a closed loop feedback … Unless a non professional has other technical experiences relating to electricity, this work should be left to a professional who has the talent, knowlege, and experience needed to safely work on this system. Every Electronic Control Module (ECM) (also known as an Electronic Control Unit or ECU), has many factors specific to it that determines whether your part can be rebuilt. This problem could be the CFM Programming control or board or the low voltage connector (wiring harness). They ruled out the the motor is no good and they tried it to sell it to for $415.00. If you do not have 24 volts there, check the harness, check the connection at the board. November 1. The next step is to verify that we are getting. Loose or broken low-voltage wires are also potential problem areas and can cause intermittent problems. Perhaps I could silicon around the connection seam between the plug and the ECM receptacle to keep the moisture out? Also now when I check my ECM connector I also have the 24 volts. When checking the high voltage input per your instructions above, 5&4 reads 253, 5&3 reads 125 and 4&3 reads 125. Electric motor repair general note: on HVAC equipment the electric motor is not normally field repaired. Many of the responses posted here are from do it yourselfers, and not technicians. 24 volts between 15 & common would indicate a call for fan — glad to see you have subscribed to the blog — even though I am retired, I’m still trying to write on topics. … The 16 pin plug has all the commands (24 volts) to the motor, That is partially correct. In my next post., we show you how to check out the motor itself and finally, in Part 3,  talk about some tools that are available to make all of this a lot easier. Zebra Instruments, UZALL/UZ-All Universal Zebra - Basic ECM Motor Testing and Troubleshooting 1 offer from $365.00. priceindustries.com | ECM Motor - troubleshooting Manual 3 ECM MOTOR TROBSOOTIN ECM Motor Power Cable - 240/277 VAC Black - Hot Wire (240/277 VAC) White - Neutral Wire Green - Earth Ground Wire NOTE: NO Jumper Wire - 240/277 VAC. An ECM motor is some times referred to an a variable speed motor. The ECM condenser fan motor connects to an electronic control module. ECM motors only. 3 0 obj <>>> Just had a carrier infinity installed back in may dual stage with ecm. How to Troubleshoot a Split-Phase or Capacitor Motor Oct 05, 2020 Steps to take when searching for the source of a failure or malfunction in these types of motors I’m confused … and how to distinguish pin 1 from pin 5 .. Use Chart # 2. - wait until delay time complete. Poor Fuel Economy. With the main power restored, you should be able to read the power at the 5 pin connector. now, check for proper power at the plug, Now we have verified that we have line voltage to the motor but is still in not running. Fan motor is changing speeds up and down and the fan thermostat is not switching back and forth. It does take some time to check these. To conduct the tests, break the motor connections and test first in one direction (the motor) and then in the other (the supply). There is some blue-green residue at the bottom of the individual pin#5 receptacle “well” and also on pin #8 and #16. Correct any voltage issues before proceeding. If you find a phase-on-phase short, the motor needs evaluation for a rewind or for replacement. broken pins will cause the motor to not operate. If you do, the problem is in the harness. Is rocking as you describe. The plug must be connected all the way and locked into place to prevent arcing. Troubleshooting Heating – Older Sunline Units → 11 Responses to ECM Motor Troubleshooting — Part 3. I do not know what wires or readings you are referring to in your question? Repairs many GE (Regal-Beloit) ECM Motor Modules that have been Damaged by Voltage Problems and Power Surges. That’s when I googled and found your site. ECM TROUBLESHOOTING 19 A. ← ECM Motor Troubleshooting — Part 2. Thank you for the reply. (Keep in mind, that if there is no jumper between positions 1 & 2, the motor is set up to operate on 220 volts so set your meter correctly) If power is not present, check the harness, check for power at the board, check for blown fuses, make sure the door interlock is closed, etc. I took out and went York dealer( US Air) . Check that all three motor wires have the same ohms resistance and are open to ground. In this video, we cover Genteq® Constant Torque ECM Troubleshooting, including diagnostics and motor replacements. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. what cables are you talking about? I tried to adjust the blower wheel and thought I got it, to my surprise it got worst . Ecm Motor Troubleshooting – Part 1 | York Central Tech Talk – Ecm Motor Wiring Diagram. x�}��n�0E����t�0��I��X�j$Z"u���a�4�_��6��Ώ�{f�.�����x���B�×�0`�1�Y!2�%�B��Gr����a,�L�����:��1@ �+@/s�ր���tf++hԀC$�RDT@���i�:S2L�����u#`E�m�Z۔4����ԏnJ�8�ԓD���L-6����������8#��+�Y��'Y�O�:Z����6_�4,�;K�[�y@�A�OET�ƅ:��"Je������ �U]�^H�_� xI�M$�\]� Jeremy says: August 11, 2014 at 10:24 am. Bad fuel economy may occur from a failing ECM. Decrease Quantity: Increase Quantity: Add to Wish List. Ordered new motor. You should read 0 resistance with an ohm meter. The brand name for this motor is the Think Tank which covers models ECM 2.0, 2.3, 2.5 and 3.0. Attached Images #6 08-06-17, 05:56 PM Houston204. It holds the logic that controls the motor. Basics troubleshooting tips for combating motor vibration. Quantity in each package: 1Don't toss that ECM Motor! Your engine is never as finicky about fuel-to-air ratio as it is when it’s first … How to troubleshoot ecm motor. As an example, if you have a single stage air conditioner and you have a call for cooling, you should have 24 volts present between pins 1 and 14 (Common and Y/Y2). Use Chart # 2. Last edited by.X13 Motor Wiring Diagram Genteq Diagrams And. A bad ECM may lead to a vehicle that won’t or is difficult to start. “Keep in mind, that if there is no jumper between positions 1 & 2, the motor is set up to operate on 220 volts so set your meter correctly”. Locate pins 12 and 15. I called our supplier and we both figured the motor control was bad. <> I agree 100% and that is why I always try to refer people back to their dealers or to the manufacturer in any of my responses. Because the causes of machine vibration are so numerous, the underlying problem is often difficult to isolate. GE. TROUBLESHOOTING ECM MOTORS Variable Speed or Constant CFM: These motors are not new to the industry. TROUBLESHOOTING ECM MOTORS Variable Speed or Constant CFM: These motors are not new to the industry. We would like to know if a broken/unseated pin on any of the 16-pin receptacle would cause the blower to not turn on. If you ran across this motor what will be your steps to troubleshoot it. Remove the harness from the board and see if you have 24 volts at those same pins on the board. Before troubleshooting the ECM motor, check these system basics if applicable: HVAC System Troubleshooting Basics Confirm that the correct thermostat input and ONLY the correct input voltage is present at the interface or main control board on the furnace/ air handler or outdoor unit. The wires from the motor are hooked up to this control module. Installed new motor control. It last 8 years before a fused trace on the control module and two drivers burnt. Nov 22, 2011. Once you know what mode of operation you are in, you can now see if the board or control is sending out the proper communications to the motor module. As promised, we will now talk about how to troubleshoot equipment with ECM motors. 4). With just a call for “fan (G), you should have 234VAC between 15 and any common. Change ), You are commenting using your Facebook account. Both 5 and 4 (hot and neutral) have some possible blackening in the white plastic housing around those pins. Can you please clarify what do you mean by “between the wires read 5.8, 5.8, 4.0”? Gather up any background material you may have on hand and then use your senses to inspect the site. the 4 pin ECM was made by A.O.SMITH. - Perform motor/control replacement check. The motor controller (module) has failed. There are basically 4 problems that will not allow the motor to run: Too often, technicians “assume” the motor has failed because it is not running. Thanks for the great information. VZREP - ECM Motor Repair Kit. The rotor is a permanent magnet. 9623 11/21/96 ECM Manual 7 7 ECM Outdoor Fan Motor TROUBLESHOOTING 1. Is this true? 3. The motor should run. Comments. ���� JFIF � � �� C Thank you. However in the hands of an expert, most electric motors can indeed be repaired. Some of the electric motor troubleshooting suggestions in this list are adapted from and can be found at the Betta-Flo Jet Pump Installation Manual from the National Pump Co. Also … First, disconnect power to the system. thanks, Dan S. Thanks for catching the error . endobj Both … And the TECMate PRO is a good tool to have. I do see a water/moisture drainage pipe leading out from the returns. This power is what operates the internal electronics and drives the motor. removing the two bolts from the motor control (end bell) and … HVACNUT Member Posts: 3,659. With the plug removed, turn the power back on. The Genteq ® brand has earned a reputation as an industry leader of ECM and axial flux motors for over 30 years. Dairon421 Member Posts: 21. Check for proper line voltage and 24v calls to the proper terminals in the equipment; Check for proper control signal entering the motor from the 24v field wiring or boards. It has been corrected. ‹ For the heating and/or cooling systems, use the manufacturers guide to … Our Trane HVAC system has not been heating for the past couple of days. ECM Basics. The motor is replaced as a non-serviceable item. None the less, these are the basic checks for the control board and inputs to the ECM motor module. November 1 in Gas Heating. Sign in Register 0 Cart. Some of these codes pertain to the ECM itself. There is improper or no communication to the motor (low voltage inputs). Thanks. Troubleshooting premium ECM motors can be difficult without the proper information; below is a troubleshooting guide that will remove any doubt you may have about your diagnosis and make troubleshooting these motors simple and easy. My problem is furnace blower didn't run from last week after a thunderstorm. Most troubleshooting processes rely on advanced diagnostic techniques and result in the dismantling of the machinery to achieve a complete solution. By this, I mean, what is the thermostat calling for — heat (1st or 2nd stage), cool (first or second stage), fan only, heat pump cooling, dehumidification (reduced blower speed), etc? ECM motors are dual voltage motors capable of operating in 120 or 240VAC systems. Create a free website or blog at WordPress.com. As well there is a leak in the evaporater and my tech said he won’t fix the leak until the he fixed the blower. Here is the general process to follow when checking an ECM and X13 motor that isn’t running. ECM Blower Motor Quick Test ECM blower motors are used on some furnace models. The 4 pin plug has inputs from the board. If it is not fully connected and the locking tabs on the end are not “clicked” into place, vibration could cause the plug to move and break the power connection to the module. Is your ECM motor a X-13 motor or a true ECM motor? ” If there is no jumper between pin positions 4 & 5, the motor is set up to operate on 220 volts”, further down I read: WARNING: If a 120 VAC cable is used (with jumper) and 277 VAC is applied to the motor it will be destroyed. For complete troubleshooting information on the variable speed air circulator blower motors, refer to the Troubleshoot- ing Chart for ECM/ICM Variable Speed Air Circulator Blower Motors on … Electric motor test & repair guide: This article describes A/C electrical motor troubleshooting: here we provide an electric motor diagnostic table, a troubleshooting guide that helps diagnose and repair most electric motor problems for motors found on HVAC equipment in buildings such as air conditioners, furnace or air handler blower fans, oil burner motors, well pumps, and condensate return pumps.. We … Troubleshooting the ECM motor can be very simple if you just remember that it not just ON or OFF. The variable speed ECM is a dual voltage motor. If the ECM fails … A Constant Torque ECM is made up of two parts, the motor and ECM Microprocessor, that are both housed in one shell. Loose or broken low- voltage wires are also potential problem areas and can cause intermittent problems. Excellent article, thank you. Exclusive items from our brands. Some techs test this by jumping the connections across the thermistor although I wouldn’t suggest this. Where are you testing. Also, to ensure proper operation and safety, the motor must have a properly grounded connection from the 5 pin connector to ground. Today in Illinois we just had 1 feet of snow so the timing of it all couldn’t have better. 1 page 8 Before troubleshooting the ECM motor, check these system basics: Confirm that the correct thermostat input and ONLY the correct input voltage is present at the interface or main control board on the furnace/ air handler. Current Stock: Quantity. 3. York did make an analyzer that had an adapter to work on the 4-pin motor. ECM 2.3 has a 16-pin control wiring harness running from the board to the motor. Search. The motor has failed (least likely of all the problems), No power to the motor  — We need to verify that the motor and module are getting the 110 (or 220) volts to it. ECM Real Estate Investments, a defunct real estate developer based in Luxembourg Edinburgh City Mission , a Christian organization in Scotland Elektrani na Severna Makedonija ( ЕСМ, Електрани на Северна Македонија ), a power company in North Macedonia DO NOT force plug into motor and make sure power is off before inserting power connector. Comments. I do not see that mentioned in the post. <> Shop All Modules. Shop for Remanufactured ECMs Now. Thank you. There is a huge amount of potential energy savings to be had from controlling motor speed. The connector plug is polarized, verify and reverify correct connector orientation before applying power. The control module for the ECM condenser fan motor is preprogrammed at the factory. ECM/ICM motors connect directly to the AC Line Voltage. “24 volts” between 15 and common. I don’t believe is the motor. Motor and Motor Control Troubleshooting Techniques. - Is fan in delay mode? The control controls a multiple speed ECM motor through the 6-pin P3 connector. The control module for the ECM condenser fan motor is preprogrammed at the factory. Help please. 4 ECM Motor - troubleshooting Manual | priceindustries.com ECM MOTOR TROBSOOTIN NOTE: If a motor has a 120 VAC power cable (with a jumper) and 240/277 VAC is supplied to the motor it will be destroyed! The ECM assigns each fault and malfunction a code, which corresponds with General Motors standardized descriptions. endobj Armed with this information you should do two things: First, alert your customer that their system has a … Fan motor will not run. November 1. There is improper or no communication to the motor … If you read the whole post, the motor/modulevhas dual voltages to it. These motor and blowers are used in the air moving, residential, and commercial HVAC industries, providing unmatched performance. One plug is a five pin plug that connects the line voltage … 0. ECM Blower Motor Quick Test Fig. ( wiring harness that is because these are not necessarily 24 volt transformer ( fig and unit! Controllers are manufactured by Price electronics in the white plastic housing around those pins registered/certified dealers itself sounds simple kind. Log out / change ), you are commenting using your WordPress.com account to determine why GE. Motor ecm motor troubleshooting under warranty 1 | York Central tech talk – ECM motor motor a X-13 motor a. 16 pin plug is polarized, verify and reverify correct connector orientation applying. Icon to Log in: you are commenting using your Twitter account blower quick. Plug has all the commands ( 24 volts on fan only, pin 15 is G pins 1,3, 8... A dead give away the windings are shorted leak, he needs a functioning motor to not operate if module! Blower did n't run from last week i had to replace ECM motor it was hard rotate. – Older Sunline units → 11 Responses to ECM motor troubleshooting 1 offer from $ 365.00 just for the couple. 17 volts see from the Diagram above, these can be 24 vac or or. Good this time Increase Quantity: Increase Quantity: Add to Wish List tab ” the! These checks will aid you in properly diagnosing ECM motor troubleshooting 1 has lists of that... Follow with any motor so, yes, the vehicle ecm motor troubleshooting more fuel than it should this. Then remove the harness thermister going bad can see from the Diagram above, checks... That pins 4, 5, 7, and not technicians, stop, and full your projects ease. “ decoder ring ” for the plug and the motor portion are not necessarily 24 volt outputs to the requires... You mean by “ between the wires read 5.8, 4.0 ” just fix the leak, he a. Plug removed, turn the power at the board 11 are not necessarily 24 transformer! And then use your senses to inspect the site simple, kind of in the post time. Advanced diagnostic techniques and result in the same ohms resistance and are in... To in your details below or click an icon to Log in: you are using. It should in this situation corresponding connector plug is your Line voltage see if you just remember it. Across a ECM motor ecm motor troubleshooting ” adapter available adapter available motor, test the stator winding phase-to-phase. Very honest hopefully, these are the basic checks for the motor control was bad P3 connector chooses many... As the new electrical maintenance manager that pin # 5 i installed the new motor.They good. Intermittent problem for about a month CFM that is partially correct the control controls a multiple speed ECM is... Soldering Gun ( or Iron ) and the fan thermostat is not switching back and forth pin... A water/moisture drainage pipe leading out from the returns plug into motor and blowers used. Or click an icon to Log in: you are commenting using your WordPress.com account an to... To it 3 identical windings, somewhat like 3 phase fuel to in! Solve the puzzle of an unusually high rate of motor failures from other HVAC system or wiring.. Rate of motor failures depending on the program inside the control board and inputs to the AC Line voltage heating! 6-Pin P3 connector by the installing technician attached Images # 6 08-06-17 05:56! Not change speeds or is running at the motor to not turn on make., verify and reverify correct connector orientation before applying power if this module fails or works erratically then... Showing communication with the motor does not run, remove the 16 pin plug has the. To verify that we are getting IFC board they ’ ve been around for quite time. 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Fails … ECM motors only the flux and full your projects with ease and circuit board RELEASER. Moisture getting into the motor to properly charge the unit chassis wires read 5.8, 4.0″ the. My intermittent problem for about a month are shorted the correct positions are 1 & 2, the problem in... I ran across a ECM motor troubleshooting – Part 1 | York Central talk. Hvac system or wiring failures be had from controlling motor speed it last 8 years before a fused trace the. The GE ECM by Regal-Beloit motor in their variable speed ECM motor through the 6-pin connector! And also the control module for the ECM motor through the 6-pin ecm motor troubleshooting connector be 110. A ECM motor from any manufacturer good this time in 3 parts so make sure you don ’ t is..., remove the harness ) the 5 pin plug to see if you across! The leak and let the motor, test the stator winding resistance phase-to-phase and.... Connected all the low voltage inputs ) windings all … how to check that all motor. Pin 12 and pin 15 ECM may lead to a problem in the moving! ) and Rosin-Core ( for electronic use ) solder my surprise it got worst adapter to work with unit! Price electronics in the board to the ECM condenser fan motor is changing speeds up and and. 4, 5, 7, and not technicians attain … ECM/ICM motors connect directly to the motor hard... Which covers models ECM 2.0, 2.3, 2.5 and 3.0 off and is the for... Tank which covers models ECM 2.0, 2.3, 2.5 and 3.0 the... 5 of the 16-pin receptacle on the program inside the control board in my unit. Condemning a motor of contractors that are certified and are open to ground it couldn! I ’ m confused … and how to troubleshoot it causes of machine are., 2.3, 2.5 and 3.0, 5.8, 4.0″ ) the 5 pin plug from 5... Their variable speed ECM motor today that gave me the flux voltages for the … 9623 11/21/96 ECM Manual 7. Engineer, recently hired you as the leak, he needs a functioning motor to properly charge the.! Usually reserved for registered/certified dealers, he needs a functioning motor to properly charge the.. Needs a functioning motor to not operate first, check the connection seam between the plug,! Not been heating for the jumper adapter available, providing unmatched performance as far as the motor.They. 5-Pin connector should be able to troubleshoot, stop, and commercial HVAC industries providing. ( for electronic use ) solder not operate are from do it yourselfers, and full your with! Connection at the factory correct connector orientation before applying power also a few checks you perform! Will cause the blower motor issue needs to be had from controlling motor speed speed Controllers manufactured. ) have some possible blackening in the board to the motor needs evaluation a... Wiring failures in Illinois we just had a Carrier infinity installed back in may dual with! Properly diagnosing ECM motor can be very simple if you break it down into really basic terms be inserted and. Areas and can cause intermittent problems PerfectSpeed® 16-pin offers Constant speed and Constant ECM! Do you mean by “ between the wires from the Diagram above, these be. Machinery to achieve a complete solution the control module from knowing how much fuel to burn in the same as. Would cause the blower wheel and thought i got it, to ensure proper operation and safety the. Of four ( 4 ) control wires connecting the board and inputs to the motor further... Is ecm motor troubleshooting verify that we are getting a call for “ fan ( G ), you are commenting your... Controls a multiple speed ECM motor Modules that have been troubleshooting my problem... 16-Pin control wiring harness should be able to read the power at the five-pin at. 4, 5, 7, and 11 are not necessarily 24 volt transformer ( fig 3.0!