DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   HVAC (http://www.diychatroom.com/f17/)
-   -   replacing furnace blower motor from a 4 speed to 3 speed (http://www.diychatroom.com/f17/replacing-furnace-blower-motor-4-speed-3-speed-152968/)

Roy Jones 08-07-2012 04:43 PM

replacing furnace blower motor from a 4 speed to 3 speed
 
I purchased a replacement blower motor but the replacement is a 3 speed vs a 4 speed can the 3 speed be wired up to the controller board?
4 speed motor has a med lo and med hi wire can I tie the 2 connections on the control board to the 1 med speed wire on the new 3 speed motor?

biggles 08-07-2012 05:10 PM

do you have AC on the furnace should be HI for cooling...and maybe LO/MED or just LO for heating.can't stack speed wires only single speed connections either or..do you have HI on the new 3 speed motor

beenthere 08-07-2012 05:21 PM

yes you can.

Acomfort 08-07-2012 06:12 PM

One to hi, one to low and one on park

beenthere 08-08-2012 04:25 AM

Quote:

Originally Posted by Acomfort (Post 983707)
One to hi, one to low and one on park

Good chance his old motor used med high and med low. So using med on his new 3 speed for both heating and cooling would be typical.


All times are GMT -5. The time now is 11:39 AM.