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Daniel Plourde
Daniel Plourde, HVAC Technician
Category: HVAC
Satisfied Customers: 327
Experience:  hvac technichian at performance plumbing and heating
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This is the second Ecm motor 1st one on warantee now the

Customer Question

This is the second Ecm motor 1st one on warantee now the second one is grinding and growling. Have there been any improvements on these Ecm motors?
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: Have not used furnace for 4 months but now will repair for winter.
JA: Did you check the furnace's filters?
Customer: Have replaced as well as washing the HRV.
JA: Do you plan on doing the work yourself?
Customer: I may .I am guessing retail on the part is $1000.00.
JA: Anything else we should know to help you best?
Customer: Filters have been serviced regularly. Also we use the AC as required here in Calgaty Alberta Canada.
Submitted: 1 year ago.
Category: HVAC
Expert:  Daniel Plourde replied 1 year ago.

hi i am dan i can help you with this. what is the brand and model of the motor?

Customer: replied 1 year ago.
Model#. 355MAV042. Serial#. 4503A12901. ECM Motor. 5SME44UG20060. 1/15 HP CCW
Expert:  Daniel Plourde replied 1 year ago.

ok how long has this motor been in? when did the noise start?

Customer: replied 1 year ago.
Furnace install March 24,2004 ECM replaced Aug 2013 Warantee. Severe grinding two months ago and have not turned furnace for heat since. Turned furnace on to test stood by furnace heard and felt grinding then turned off.
Expert:  Daniel Plourde replied 1 year ago.

ok and it is defiantly the motor making the noise or could it be the wheel rubbing against something or if it is loose and was it checked to make sure it is balanced. i am not aware of those motors having any factory problems like that. i have only seen one motor out of hundreds of ecm motors make a noise like that. if your blower wheel is bent or unbalanced that will cause the bearings in the motor to go bad prematurely.

Customer: replied 1 year ago.
Luck of the draw bent or unbalanced wheel.when new one was installed everything was encased in a black box.
Expert:  Daniel Plourde replied 1 year ago.

the blower wheel is separate than the motor. if only the motor was replaced the existing blower wheel would have been re connected to the new motor. first i would check it to make sure the noise is not from the blower wheel rubbing up against something

Customer: replied 1 year ago.
Twill check thank you for now.
Expert:  Daniel Plourde replied 1 year ago.

ok let me know if you have any more questions about this or if that helps you