Well son of a gun, now I know exactly how to test the windings in the blower motor. I recently had an A/C technician claim that my motor bearings were bad and that's why it was humming and not starting. As it turns out, he was correct that the motor needed to be replaced, but wrong as to determining what was wrong with the motor. The motor ended up having 20 ohms across the two brown capacitor leads which means that the start winding was shorted. So this all makes sense now. Thank you for the detailed explanation. The only question that was not answered or considered is the polarity of the capacitor? I noticed, these types of capacitors don't have any polarity markings. I assume it doesn't matter because of A/C voltage, but capacitors in general usually need to have the polarity right in DC applications which are the ones I'm most familiar with in amplifier circuits. Just wanted to throw that out there.
We are taught that in a capacitive circuit (ICE) Current (I) in a Capacitive (c) circuit leads Voltage (E) the acronym is ICE and in an Inductive Circuit (ELI) Voltage (E) leads (L) Current (I) so ELI is the acronym. At around 6:30 in your video I see that you are saying the opposite. I guess I am wondering if what we are being taught is incorrect? I can reference the 10th Edition of Electricity for HVAC by Russell E SMITH that also supports those two acronyms.
6:05 Current leads voltage in a capacitive load, not inductive. There are a couple of fundamental errors in the information being presented. It's ok to make mistakes but please correct them because it's misleading to everyone taking their time to try and learn.
It would appear at 3:59 that you said "the highest resistance will always be between common and start." I think you meant "run and start." Measuring between run and start will have the resistance of both the run and start windings.
I probably did, of course the combination of the two windings together will always be the sum of the run and start. The start window will typically be the highest of the two.
Well son of a gun, now I know exactly how to test the windings in the blower motor. I recently had an A/C technician claim that my motor bearings were bad and that's why it was humming and not starting. As it turns out, he was correct that the motor needed to be replaced, but wrong as to determining what was wrong with the motor. The motor ended up having 20 ohms across the two brown capacitor leads which means that the start winding was shorted. So this all makes sense now. Thank you for the detailed explanation. The only question that was not answered or considered is the polarity of the capacitor? I noticed, these types of capacitors don't have any polarity markings. I assume it doesn't matter because of A/C voltage, but capacitors in general usually need to have the polarity right in DC applications which are the ones I'm most familiar with in amplifier circuits. Just wanted to throw that out there.
I did appreciate the cliffhanger ending
We are taught that in a capacitive circuit (ICE) Current (I) in a Capacitive (c) circuit leads Voltage (E) the acronym is ICE and in an Inductive Circuit (ELI) Voltage (E) leads (L) Current (I) so ELI is the acronym. At around 6:30 in your video I see that you are saying the opposite. I guess I am wondering if what we are being taught is incorrect? I can reference the 10th Edition of Electricity for HVAC by Russell E SMITH that also supports those two acronyms.
You are absolutely correct, I will change!!
6:05 Current leads voltage in a capacitive load, not inductive. There are a couple of fundamental errors in the information being presented. It's ok to make mistakes but please correct them because it's misleading to everyone taking their time to try and learn.
It would appear at 3:59 that you said "the highest resistance will always be between common and start." I think you meant "run and start." Measuring between run and start will have the resistance of both the run and start windings.
I probably did, of course the combination of the two windings together will always be the sum of the run and start. The start window will typically be the highest of the two.
Sound is slow
Well explained thank you, please I have a psc with a 6 wire labeled as U,V,W,Z, A and B how do I connect it
Thank you for the tutorial :)