u/Illustrious_Rip_2385

Ran a service call on a trane heat pump, blower fan is running continuously (with fan in auto and unit set to off). Removed stat from wall and blower stayed on. Isolated stat from control board and blower stayed on. (Which at this point I told homeowner it’s probably stat, I’ve never ran into this problem before) so I rolled out and looking back it’s obviously not thermostat because the blower stayed on with it removed🤦🏼‍♂️. When I go back out there, how can I tell if it’s relay on board or motor? Looked like it’s a X13 motor. One with speed taps and not molex plug.