Nordyne 626613 L170-40 Limit Switch

Fixed my issue of the blower turning on for a few minutes and then turning off again with the fan set to auto when the flames in the furnace were not on blowing heat.I simply turned off the power to the furnace, located the limit switch, disconnected two wires from it, unscrewed the old limit switch, took it off and reinstalled this new piece. The fan no longer blows at improper times.

When I found I had to replace my furnace and returned it I was shocked that I took an 80% hit on what I paid to get it.