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Help on and ECM mtr

Discussion in 'Residential' started by Catpower, Aug 10, 2011.

  1. Catpower

    Catpower The Crowd Pleaser

    Messages:
    22,466
    Location:
    in the Cabana
    I've never had to jack with an ECM motor until last night the one in our furnace took a shit, I jack legged a 1/2 hp PSC mtr in there it's over amping but still running

    How do you trouble shoot one?

    The mtr # is HD 52 RE (maybe AE) I called Carrier and they said the module is $429, I can get in on line from HVAC parts outlet for $235 so carrier can kiss my ****ing ass, but I want to make sure that's the problem before I buy it, but might just alter the unit to run with a 3/4 or 1 hp psc mtr

    Appreciate any help, I really don't need this shit going on right now
     
  2. crackertech

    crackertech assholiness *

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  3. Swampfox

    Swampfox red tagged

    Messages:
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    Location:
    Hell Hole Swamp
    Its almost always the module, as long as the motor ohms out good and spins freely

    should ohm out like a 3 phase motor, all three windings the same
     
  4. Catpower

    Catpower The Crowd Pleaser

    Messages:
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    Location:
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    Thanks Tyler, I thought that was what they said in the class I took on them a long time ago, but have never had to work on one before

    Pisses me off that Carrier wants so much for the module, probably because in the last few years I haven't sold too much of their stuff, I guess they forgot about the years when i was selling around a million bucks worth every year
     
  5. CincyHVAC

    CincyHVAC Hoptimus Prime, Master of Beer-Fu

    Messages:
    46,995
    Location:
    Ohio's Southern Shoreline
    I bought a module for an American Standard (mine) for $235.00 this week.

    A carrier at the office needed a module and the cost was about $290, so you're getting ****ed........
     
  6. 4x4Freak

    4x4Freak New Member

    Messages:
    892
    Location:
    Kermit, TX
    Pull the module off the motor. Most of the ones I have seen go bad blow the little black fuse in the middle. Also check out the plug on the motor, sometimes they will fry the terminals when they go. I believe Zebra or someone makes a kit to repair them. They also make a inline surge protection device that's supposed to help protect it from electrical problems. I've never tried to fix one since most of the ones I've run across were still under warranty.

    If you think the module is high try pricing the whole motor. Our cost is about $700. A motor for a Rheem is just under $400.
     
  7. 4x4Freak

    4x4Freak New Member

    Messages:
    892
    Location:
    Kermit, TX
  8. Stephy

    Stephy Dawg

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  9. ISOTHERMAL

    ISOTHERMAL senior member

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  10. ISOTHERMAL

    ISOTHERMAL senior member

    Messages:
    33,681
    Location:
    Green Acres
    I have saw the repair kits before, but not the surge protectors.

    Thanks

    I have replaced a couple motors/modules and circuit boards.

    One ECM and one X-13 had the magnets come off the armature.

    One ECM had a module.

    With both of the ECM motors I had to replace both the modules and the motors.

    2 different brands of equipment, but both said "we no longer sell just the module or motor, you must purchase both"
     
  11. 4x4Freak

    4x4Freak New Member

    Messages:
    892
    Location:
    Kermit, TX
    I've seen that a couple times on the X13s.
     
  12. Bob Hubbard

    Bob Hubbard Professional Bicker er

    Messages:
    4,720
    Location:
    Cincinnati
    Im pretty sure the price difference from an ecm furnace & a standard motor is just a few hundred dollars .....How long is the supply houses goin to keep charging such a high price for theses parts ...... The motors hav been out long enough to bring th price down .... ;)
     
  13. Catpower

    Catpower The Crowd Pleaser

    Messages:
    22,466
    Location:
    in the Cabana
    Thanks for all the info guys, I think it's just going to be adapted to a PSC motor

    I know the ECM's are suppose to save electricity, but I don't think they save any money if they don't last
     
  14. Airflow

    Airflow New Member

    Messages:
    6
    Location:
    virgina
    carrier is proud of their replacement parts
     
  15. Weber

    Weber New Member

    Messages:
    10,565
    Location:
    Elkton, MD
    Do you have the part #?

    I probably have one laying around here.
     
  16. Weber

    Weber New Member

    Messages:
    10,565
    Location:
    Elkton, MD
    Cat, let me know if you have a number. I found a couple different ones that I have hear I could send you.
     
  17. yoop

    yoop Money talks......but all mine says is "Goodbye"!

    Messages:
    2,356
    Location:
    USA
    easiest way for testing the ecm is to purchase an ecm tester for both analog & digital motors. Around $150.00 for both. The testers will determine if the problem is the module, motor or the board
     
  18. Catpower

    Catpower The Crowd Pleaser

    Messages:
    22,466
    Location:
    in the Cabana
    The number Carrier gave me was HD 52AE120, but I might be wrong with the HD part, but the rest of the number is right, the page that I wrote the number on some how got all f'ed up

    Thanks

    The thermistor came in but I haven't made it to the supply house yet, was waiting for it to cool off before I have to shut the a/c down to fix it

    But at least we have broken the record for all time days for over 100 here 71, damn that's too many
     
  19. Weber

    Weber New Member

    Messages:
    10,565
    Location:
    Elkton, MD
    I got one, pm me your address and I will send one to you.