Ask Experts Questions for FREE Help !
Ask
    immortalmarsh's Avatar
    immortalmarsh Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 27, 2009, 06:03 AM
    Ok to upgrade furnace motor from 1/2 to 3/4 hp?
    Hello, and thank you ahead of time for any helpful info. I currently have a Rheem Classic 90 Plus RGRA-07EMAES serial 5H5D702F480003896 75000 BTU furnace with a 1/2 HP (373) Furnace blower motor. I have read that this blower motor is a week 3 ton blower motor for A/C. Cooling is Set at high speed and heating is at med/hi. I just competed my lower levels and the 1/2 hp it just not doing the job. The next model up RGRA-O7EYBGS is a 75000 BTU with the 3/4 hp motor. It is set to cool at high speed and to heat at med/low. I would like to first know if I can change out the Furnace motor to the 3/4 hp and put the settings at the recommended settings. And 2nd I would like to know what is the part # for the 3/4 hp blower motor from the RGRA-07EYBGS. If you know anyone that I could call if this would work to order the part that would be helpful also. I think the board can handle the power demand of the 3/4 correct.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jun 27, 2009, 03:20 PM
    It is OK to change the motor.

    Usually in this kind of item you just match the higher HP motor to the same configuration as the old 1/2 HP motor. This way you buy any brand of motor you want. NOTE you will probably have to replace the run capacitor for the motor also since it might be a different size.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Furnace Blower Motor Runs Constantly & Furnace or AC Won't Run [ 2 Answers ]

I have an Armstrong forced air (induced draft) natural gas furnace with central AC (made around 1990 -- Model: EG6H80DC14-1, Serial: A18315MNA). I had a problem at the end of the heating season where the blower motor would run continuously (even when the thermostat is turned to "off"). I thought...

Goodman furnace will ?heat motor? And blower motor will run but not at same time [ 2 Answers ]

I have a 2 year old Goodman, gas, no heat pump. There is a flashing LED that blinks once ever 4 seconds. Also, blower motor does not stay on always. We did smell something like an electrical burn. I'm guess my blower motor is fried?

Furnace not heating the house. Damper on the furnace not opening. Motor then shuts. [ 4 Answers ]

My forced-air furnace is not working correctly. The gas works heating the air in the furnace, but When the motor starts the damper doesn't open and the Motor shut down. I need suggestions?:mad:

A/C and Furnace Upgrade 13 to 14 a/c and 80% to 90% Furnace [ 3 Answers ]

I am planning to build a house and the standard a/c and furnace is 13 seer carrier with a 80% efficiency furnace. To upgrade to a 14 seer carrier and 90% efficiency furnace its about $1400. I plan to live in the house at least 10 years. Is this a good investment to save over the long run with...

Upgrade the blower motor [ 3 Answers ]

Ok, a recent thread mentioned something about upgrading the blower motor. That's exactly what I want to do. My reasons are that, while the air gets cool enough, the flow is just not what I would like probably mostly due to the crappy flex ducts the builders use these days. One solution that has...

View more questions Search