Help diag. blower motor issue in Lennox furnace
First, this is a great forum. I have read most of the post for the blower motor issue that I am having, but I can't find a solution.
I have a Lennox CB29M-51-2P and the blower motor seems to be dead but is it? After the heat pump has kick on for 30 or 40 seconds, I get both the red and green to light up on the WHITE-RODGERS thermostat. I walk out to the furnace and I hear a medium hum, but the fan is not running. I turned the power off to the furnace and take the door off to expose the blower and such. I turn the unit back on; hear the medium hum and the squirrel wheel is still not moving. I give it a little nudge and the fan starts to spin. BUT, it never runs at the higher speeds; it just keeps running at a low speed and does not move air throughout the house.
What do you think the problem is?
3/4 HP | 4.5FLA | 1 PH | 60 Hrz
Last edited by partsace; 01-21-2012 at 02:28 PM.
Reason: fixed manu name on therostat...