Need help w/ wiring Rheem blower motor

______________________________________________________________________ I am replacing a Rheem furnace blower motor 1/2 HP. Furnace model #Robc 095QBEA. My problem is this: both the replacement motor and the old motor have 6 wires but some are different colors. I followed the diagram on the replacement motor housing and still no blower motor. The old motor has = W R BR BL BK Y. The New motor has = R BL Y BR BK and a Brown wire with a white stripe. I am not using the BK and R because that is High and Low speeds. I am using the blue for med speed. What I have hooked up are the Blue to blue, Yellow to line, Brown + brown with white line to Capacitor. The blower still won’t run. Can anyone help me please? I am stuck on this on. Thanks in advance. Dave Packard [this message was edited by My49Packard on Tue 23 Jan 22:39] Replies: jim jones “Re(1):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 13:46 ______________________________________________________________________ look at plate on new motor. it looks like your attempting to install a 220 volt motor into a 120 volt application. hvacfor2long My49Packard “Re(1):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 08:49 ______________________________________________________________________ Is there anyone that can hekp me by getting me a site on the web where I can get a wiring diagram for this Rheem furnace? Model #ROBC 095QBEA Used for heat only. Dave Packard hvacfixr “Re(1):Need help w/ wiring Rheem blower motor” , posted Tue 23 Jan 22:46 ______________________________________________________________________ The new motor you didn’t mention white. White is common and you should have it. Licenced Refrigeration Mech./Gas Tech. in Toronto Canada. My49Packard “Re(2):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 08:31: ______________________________________________________________________ Thanks for the reply. Yes I know the new motor should have a white common wire but it dose not. The only wire that has some white on it is the brown wire with this white stripe on it.I thought that might be my common but when I hooked it up it poped a fuse. There is another solid brown wire with no white stripe on it and that is going to the Capacitor from the motor. I’ll go back and re try it again. When the temp rises the I can hear the relay kicking in and I check for power on the blue wire ( Med speed wire ) going to the motor I get 120v. With that I am thinking the motor should run, and your right, wheres the common. I will look into that. Thanks for your Imput. Dave Packard [this message was edited by My49Packard on Thu 25 Jan 09:51] hvacfixr “Re(1):Need help w/ wiring Rheem blower motor” , posted Tue 23 Jan 22:46 ______________________________________________________________________ The new motor you didn’t mention white. White is common and you should have it. Licenced Refrigeration Mech./Gas Tech. in Toronto Canada. tom446 “Re(2):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 08:17 ______________________________________________________________________ I’ve seen some replacement motors that use a yellow wire for common If in doubt call a pro ! tom446 “Re(2):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 08:14 ______________________________________________________________________ Are you sure your getting power to the motor? You may have a bad relay or fan control. If in doubt call a pro ! My49Packard “Re(3):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 08:43 ______________________________________________________________________ Yes I am getting power to the motor when the fan relay kicks in. I am thinking the proplem is in my search for the comon. And yes, ashamed as I am to mention it I thought I was close to being a pro after many years of being it the trade. But sometimes my brain has a brain fart and I tend to forget things. Smile. Thanks for your imput. I appreciate your help. Dave Packard. Dave Packard tom446 “Re(4):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 09:15 ______________________________________________________________________ What color wire has power to ground when the fan relay kicks in ? If in doubt call a pro ! my49packard “Re(5):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 23:35 ______________________________________________________________________ The black, blue,red, yellow,brown, and brown w/white stripe have 120v after the relay kicks in. I got the fan to run only after I took the blue wire ( Med speed ) and tied it into the white wire on the capacitor. the squirrel cage fan did seem a little sluggest. I would have thought it would have run faster than it did run. I also found out that I was using the improper Capacitor. What I had was a 10 mfd 440v and the manf suggest using a 10 mfd 370v capacitor only. Tomorrow am I am going to put a new motor on with the correct Capaccitor and see what happens. I have a call into A O Smith and will be talking to them in the morning. It is their replacement motor and they should back their product. I will be back on line tomorrow and let you (and other people who have been nice enough to help me out with this problem) know how things turned out. Man, if this is what retirement all about, I am thinking about retirteing from retirement and going back to work again. whew. Thanks for your help, I really appreciate it. Dave Packard Dave Packard my49packard “Re(6):Need help w/ wiring Rheem blower motor” , posted Thu 25 Jan 16:58 ______________________________________________________________________ Thanks Tom and Jim, I got the motor up and runing, see other post as to what I did. Thanks again guys Dave Packard tom446 “Re(5):Need help w/ wiring Rheem blower motor” , posted Wed 24 Jan 10:08 ______________________________________________________________________ Here is how I think your new motor wires: Black — high speed Blue — medium speed Red — low speed Yellow — common Brown — capacitor Brown/white — capacitor If in doubt call a pro ! tom446 “Re(6):Need help w/ wiring Rheem blower motor” , posted Thu 25 Jan 18:00 ______________________________________________________________________ Even though it runs, I think your still wired wrong. If it’s not wired right you could shorten the life of the new motor. Like Jim mentioned, check the plate on the motor and be sure it is a 120 volt motor. If it is, the 2 brown wires go to the capacitor. The yellow wire would go to the board to a common (L2) post. The blue to the heat relay. If you have a/c the black would go to the cool relay. The red would go to park or just tape it off cuz you don’t need it. If in doubt call a pro ! my49packard “Re(7):Need help w/ wiring Rheem blower motor” , posted Thu 25 Jan 22:44 ______________________________________________________________________ Hi Tom. Ok I will check my wiring again in the morning. I did check the mfg plate and it is a 120 volt motor. I tied the two brown wires ( 1 with white stripe) coming from the motor, to each terminal on the Capacitor. There is no ac. I taped off the red and black wire as I am not using high or low speed, just med. That is the blue wire coming from the motor. I connected the blue wire to the com white wire in the junction box. Then the yellow wire to a line yellow wire coming out of the junction box. The other end of this yellow wire in the junction box was tied into a red wire coming from line. I will check tomorrow to see how things are working out. Thanks for you info. Dave Packard BTM “Re(8):Need help w/ wiring Rheem blower motor” , posted Sat 27 Jan 20:21 ______________________________________________________________________ Hey guys, Couldn’t he just ohm out the windings to determine the speeds? Brown is the cap. & yellow is common Rich

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