In this video we cover Genteq Variable Speed Constant Airflow ECM Troubleshooting, including diagnostics and motor replacements. www.genteqmotors.com/Products... MCV18134E
Hi and thanks for making this helpful tutorial. Where can I purchase a TechMate Pro and most importantly, where can I get documentation on the communication protocol--the command set-- it uses to talk to an ECM 3.0 module?
I had a similar problem with a 2.3 and the Supco tradefox tester and the motor ran but not with harness. Not sure if some testers have different ways of testing the motor
Are the modules still failing way too early such as the power in rush component? Seems that those ECM's are well over priced for the benefits they give as just one service call eliminates any savings on power for life.
You can attach a fan relay wire green and common to the 24 volt, and then your fan speed tap to normally open, and a wire from line 1, and then line 2 or common goes to common of the transformer.
@@leslieabraham6074 sure, but that means the fan will only work on 1 speed through that relay. The ECM motor can have up to 5 speeds depending on the model.
Had problem with gentec ecm 3.0 motor yesterday. Got test tool(i think its called ecm pro from united). Had error on main logic board 68. Has to do with communication to motor. Used the tool and motor ran whole day till i ordered new board thinking motor was good. Replaced board and same error on new board and old motor. Replaced motor and it works fine. So control board on motor is bad, why did motor ran with the tool?
So the tool is nothing more than sending 24vac to some specific terminals on the module of the motor that receives 24vac. That is all it does, nothing fancy, it's nothing but a set of jumpers. So most of the time when there's a fault, the 24vac does nothing to get the motor to run and then you're ok to change the module... In your case, you had a bit of an anomaly where the 24vac part of the module was fine, but there's also some communication wiring for controlling the speeds (which is usually through low voltage dc signals and what not)... That particular part of your module seems to be what failed. It's a little unusual, but that would be frustrating since the tool wouldn't recognize that issue. The tool is still far dumber and simplified for what the ecm control does. This is obvious by the fact you're not controlling any speeds of the blower except one fixed speed, yet the furnace board does ramp it up and down and has almost endless speeds.
Ive used this tool on a 16 pin trane variable speed. It ran great on full speed with the tool so I replaced the board and the motor still ran at like 100cfm lol.
Thank you for your message. Please give us a call and we can better assist: Customer Service: Induction motors Technical Support 800-672-6495 Electronically Commutated Motors (ECM) Technical Support: (866) 503-8566, Option 3 Hours: 8am - 5pm CST (Monday - Friday)
@@jamesdaws3457 Regal Beloit was hesitant to even talk to a DIYer about it. Nor could I get a straight answer from any forum. I eventually bought a reconditioned one from www.ebay.com/usr/unitedhvacmotors. It works fine. I had to switch a couple wires in the harness since my motor turned the opposite way. But they had instructions for that.
@@jeff3741 Thanks Jeff. We're you able to get one with the same model number or did one work with a different model number? I suspect the myriad of model numbers and programming codes are mostly a smoke screen.
@@jamesdaws3457 I contacted the seller and told them what I had. They sent me the one that worked. I think the programming is based on the multiple speeds the fan runs. The RPMs for slow and fast are different for the various models. I tried an unprogrammed motor first and it didn't work at all. That's when I went with the e-bay seller.
I’m old so you saying this is easier doesn’t work for me. I prefer to know exactly where when why how the problem is. Not offering a Corel module is dumb too. Now we have the even stupidest technology with Bluetooth will present many new problems.. too many to cover, but one I will say is, now people that shouldn’t be trying to fix things they don’t comprehend!! On top of it will take away from many aspects of technicians..??
Its a trend. I can understand how many people will quote $100 to $200 million or 3 to 5 years etc. Tells you very little except that they have no idea.