HVAC ECM motors 1

I talk about ECM motors.

Category:

Howto & Style

Tags:

• ecm
• motors
• GE

[uberdavez]

Hope you have made a full recovery.

[DrZarkloff]

@uberdavez I'm feeling much better now. Thanks.

[atiner1]

Hey! I workmin san antonio tx, most of the time the resistors go bad, if you look at it its a pretty simpple fix, if your into repairing, or if someone if broke, simply un solder it and resolder a new one.

[DrZarkloff]

@atiner1 Thanks for the tip.

[ThePDog74]

BTW nothing to ground is bad :) (zero ohms to ground) Just messing with you Dr. Z I know what you mean :)  love your videos love learning about HVAC from you

[DrZarkloff]

@ThePDog74 LOL. Thanks.

[robmat813]

The sequence of the power going through each winding is what creates rotation. Because the rotor is a permanent magnet, it's true magnetism rather than induction that keeps it going.

[robmat813]

The modules on the back of ECMs and X13s aren't really variable frequency drives. ECMs are more like a stepper motor in the way the output power from the module is pulsed through the windings. An ECM take single phase AC power, puts it through a rectifier, a capacitor bank, and an inverter section just like a VFD does, but the ECM is a 3-phase permanent magnet DC motor. ECM output is pure DC, and it doesn't vary the frequency, it just pulses the power through the windings sequentially.

[wargasmn1]

Here in Washington I can but Either a (motor) or the Drive depending on what I need. We sell American standard and ive replaced about 5 of the drives. Never had to order one all have been in stock. The drives dont really go back either. They lose their programming. They can be Re-flashed at a wholesale house if they have the program. Thats what we do if they are still under warrenty.

[myworldent26]

THank you for showing me something new! 

[THEtechknight]

im starting to see more and more of those electronic drives go bad. the new inverter units from fujitsu, etc... they are VFD type setups.

Most likely if anything, the actual IGBT transistor goes bad/shorts. If that motor drive was actually not potted in epoxy (moisture/copy protection) it would actually be repairable. at least to me.

[d1incharge]

@hoosierdaddi86 They do have benifits, unfortuneatly they don't outway the cost. We are in a humid climate here, so dehumidification is important. The geothermal I audited ended up a 22 SEER. You can buy similar rated a/c's without digging wells, running all the extra parts that are bound to fail someday involved in geothermal. I pay less to heat and cool than just the interest on a geothermal system. I make more money on a 2.5% CD than a geothermal will save. Everybody wants to ignore ROI.

[glenisah]

I think GE now offers a repair kit for their control board. It was commonly a failed thermistor. BTW these things make an awesome permanent magnet generator with the 3/4hp version capable of 400 watts max output.

Chk out at the otherpower forum @ Fieldlines(dot)com. Search for "ECM"

[mikerochesterny]

Sorry if I miss understood your question in regards to the ECM motors and replacement control heads. I know that not all ECM motors can be repaired I was just trying to referance GE motors that have been installed in Trane & Carrier units, I also know that depending on what type of motor you have you can get control heads from your sales rep or supply house as long as they know what they are doing, I have had problems getting parts sometimes when the counter guy has no idea whats going on.